Introducing Gemma 3n - Hacker News

Posted by bundie 6/26/2025

Introducing Gemma 3n(developers.googleblog.com)

405 points | 191 comments

pilooch 6/26/2025|

This model is fully compatible with anything previously done with gemma3. Just passed it to one of my vlm fine-tuning scripts and it started without issues (hf transformer code). On a single GPU with Lora the E4B model takes 18Gb of VRAM in batch size 1 where gemma-4B was 21Gb. Nice one from deepmind, the gemma3 family tops the open weights VLLMs.

pilooch 6/27/2025|

Fix: it's the E2B

simonw 6/26/2025||

I tried my "Generate an SVG of a pelican riding a bicycle" prompt against Gemma 3n 7.5GB from Ollama and 15GB for mlx-vlm and got a pleasingly different result for the two quantization sizes: https://simonwillison.net/2025/Jun/26/gemma-3n/

lastdong 6/28/2025||

So interesting, in the end it (accurately) describes the image. SVG is hard. Made me think we could try introducing a feedback loop until it reaches a close enough representation of what’s asked.

JohnKemeny 6/26/2025|||

Is that actually a useful benchmark, or is it just for the laughs? I've never really understood that.

simonw 6/26/2025|||

It was supposed to be a joke. But weirdly it turns out there's a correlation between how good a model is and how good it as at my stupid joke benchmark.

I didn't realize quite how strong the correlation was until I put together this talk: https://simonwillison.net/2025/Jun/6/six-months-in-llms/

moritzwarhier 6/27/2025|||

Always loved this example, what do you think of ASCII art vs SVG?

Since it's not a formal encoding of geometric shapes, it's fundamentally different I guess, but it shares some challenges with the SVG tasks I guess? Correlating phrases/concepts with an encoded visual representation, but without using imagegen, that is.

Do you think that "image encoding" is less useful?

It's a thing I love to try with various models for fun, too.

Talking about illustration-like content, neither text-based ASCII art nor abusing it for rasterization.

The results have been interesting, too, but I guess it's less predictable than SVG.

simonw 6/27/2025||

I've had disappointing results with ASCII art so far. Something I really like about SVG is that most models include comments, which give you an idea of what they were trying to do.

moritzwarhier 6/27/2025||

Yes, the comments part makes sense, you also included it in the talk (I read the transcript but forgot to mention it in my comment, sorry :)

It makes sense, since it works adds associations between descriptions and individual shapes / paths etc., similar to other code.

throw0363fc53 6/28/2025|||

No way *wink*, our DevRel don't push for a good outcome on this one test case to get positive coverage on the top independent blog read by LLM people!

https://simonwillison.net/2025/May/20/google-io-pelican/

OtherShrezzing 6/26/2025||||

For me, it shows if LLM are generalising from their training data. LLM understand all of the words in the prompt. they understand the spec for svg better than any human. They know what a bird is. They know what a bike is. They know how to draw (and given access to computer-use could probably ace this test). They can plan and execute on those plans.

Everything here should be trivial for LLM, but they’re quite poor at it because there’s almost no “how to draw complex shapes in svg” type content in their training set.

jerpint 6/27/2025||||

It’s been useful though given the authors popularity I suspect it’s only a matter of time new LLMs become “more aware” of it

owebmaster 6/27/2025||||

I think in 5 years we might have some ultra-realistic pelicans and this benchmark will turn out quite interesting.

lofaszvanitt 6/27/2025||

And then the author will try the "Pelican tries to swallow the capybara as-is". And it will fall apart again.

moritzwarhier 6/27/2025||

It's this part where it gets interesting... how exactly it falls apart :D

lofaszvanitt 6/30/2025||

like a quack

dominicrose 6/27/2025||||

It's useful because it's SVG so it's different than other image generation methods.

mvdtnz 6/26/2025|||

[flagged]

Aeolun 6/27/2025|||

Kinda feel like the content is a much better reason to visit than the pelicans. Though I suppose the pelicans are part of the content.

I'm quite happy that there's someone with both the time to keep up with all the LLM/AI stuff, that is also good enough at writing amusing stuff that I want to keep reading it.

mathgeek 6/27/2025||

> Kinda feel like the content is a much better reason to visit than the pelicans.

That's how the pelicans get ya.

simonw 6/26/2025|||

Scored a whole two upvotes here, my scheme is clearly working great!

DrammBA 6/27/2025||

Leave some upvotes for the rest of us

cedws 6/27/2025||

Given how primitive that image is, what's the point of even having an image model at this size?

simonw 6/27/2025||

This isn't an image model. It's a text model, but text models can output SVG so you can challenge them to generate a challenging image and see how well they do.

cedws 6/27/2025||

>Multimodal by design: Gemma 3n natively supports image, audio, video, and text inputs and text outputs.

But I understood your point, Simon asked it to output SVG (text) instead of a raster image so it's more difficult.

simonw 6/27/2025||

It can handle image and audio inputs, but it cannot produce those as outputs - it's purely a text output model.

cedws 6/27/2025||

Yeah you're right. Also, you're Simon :)

wiradikusuma 6/26/2025||

I still don't understand the difference between Gemma and Gemini for on-device, since both don't need network access. From https://developer.android.com/ai/gemini-nano :

"Gemini Nano allows you to deliver rich generative AI experiences without needing a network connection or sending data to the cloud." -- replace Gemini with Gemma and the sentence still valid.

tyushk 6/26/2025||

Licensing. You can't use Gemini Nano weights directly (at least commercial ly) and must interact with them through Android MLKit or similar Google approved runtimes.

You can use Gemma commercially using whatever runtime or framework you can get to run it.

littlestymaar 6/26/2025||

It's not even clear you can license language model weight though.

I'm not a lawyer but the analysis I've read had a pretty strong argument that there's no human creativity involved in the training, which is an entirely automatic process, and as such it cannot be copyrighted in any way (the same way you cannot put a license on a software artifact just because you compiled it yourself, you must have copyright ownership on the source code you're compiling).

skissane 6/26/2025|||

IANAL either but the answer likely depends on the jurisdiction

US standards for copyrightability require human creativity and model weights likely don’t have the right kind of human creativity in them to be copyrightable in the US. No court to my knowledge has ruled on the question as yet, but that’s the US Copyright Office’s official stance.

By contrast, standards for copyrightability in the UK are a lot weaker than-and so no court has ruled on the issue in the UK yet either, it seems likely a UK court would hold model weights to be copyrightable

So from Google/Meta/etc’s viewpoint, asserting copyright makes sense, since even if the assertion isn’t legally valid in the US, it likely is in the UK - and not just the UK, many other major economies too. Australia, Canada, Ireland, New Zealand tend to follow UK courts on copyright law not US courts. And many EU countries are closer to the UK than the US on this as well, not necessarily because they follow the UK, often because they’ve reached a similar position based on their own legal traditions

Finally: don’t be surprised if Congress steps in and tries to legislate model weights as copyrightable in the US too, or grants them some sui generis form of legal protection which is legally distinct from copyright but similar to it-I can already hear the lobbyist argument, “US AI industry risks falling behind Europe because copyrightability of AI models in the US is legally uncertain and that legal uncertainty is discouraging investment”-I’m sceptical that is actually true, but something doesn’t have to be true for lobbyists to convince Congress that it is

lawlessone 6/27/2025|||

>don’t be surprised if Congress steps in and tries to legislate model weights as copyrightable in the US too

"Your Honor i didn't copy their weights, i used them to train my models weights"

simonw 6/26/2025||||

> US standards for copyrightability require human creativity and model weights likely don’t have the right kind of human creativity in them to be copyrightable in the US. No court to my knowledge has ruled on the question as yet, but that’s the US Copyright Office’s official stance.

Has the US copyright office said that about model weights? I've only heard them saying that about images produced entirely from a prompt to a model.

skissane 6/26/2025||

I thought I read something by them explicitly addressing the question but I can’t find it now.

However, read page 22 of https://www.copyright.gov/comp3/chap300/ch300-copyrightable-... - it is their settled position that the output of a mechanical process cannot be copyrightable unless there was substantial human creative input into it - and it is pretty clear that AI training doesn’t involve human creative input in the relevant sense. Now, no doubt there is lots of human skill and art in picking the best hyperparameters, etc - but that’s not input of the right kind. An analogy - a photocopier does not create a new copyright in the copy, even though there is skill and art in picking the right settings on the machine to produce the most faithful copy. The human creativity in choosing hyperparameters isn’t relevant to copyrightability because it isn’t directly reflected in the creative elements of the model itself

A model with RLHF fine-tuning could be a different story - e.g. Anthropic went to a lot of effort to make Claude speak with a distinctive “voice”, and some of that involved carefully crafting data to use for fine-tuning, and the model may contain some of the copyright of that training data.

But, even if that argument also applies to Gemma or Llama - if someone intentionally further fine-tunes the model in order to remove that distinctive “voice”, then you’ve removed the copyrightable element from the model and what is left isn’t copyrightable. Because the really expensive part of building a model is building the foundation model, and that’s the part least likely to be copyrightable; whereas, fine-tuning to speak with a distinctive voice is more likely to be copyrightable, but that’s the easy part, and easy to rip out (and people have motivation to do so because a lot of people desire a model which speaks with a different voice instead)

tough 6/26/2025||

A very good lawyer could argue that creating the data sets for training, doing the evals, and RLHF, constitutes -human creativity- and not a mechanical endeavor.

but who knows judges can be weird about tech

skissane 6/26/2025||

Right, but it isn’t legally enough for there to be creativity in the supervision of the mechanical process - that creativity has to take the form of creative elements which survive in some identifiable form in the end product. The technical skill of managing a mechanical process can involve a great deal of creativity, but that doesn’t legally count as “creative” unless that is directly surfaced in the model output

I think the case is the strongest with RLHF - if your model speaks with a distinctive “voice”, and to make it do so you had to carefully craft training data to give it that voice, such that there are obvious similarities (shared turns of speech, etc) between your RLHF training input and the model outputs - that aspect of the model likely is copyrightable. But if you are trying to improve a model’s performance at mathematics problems, then no matter how much creativity you put into choosing training data, it is unlikely identifiable creative elements from the training data survive in the model output, which suggests that creativity didn’t actually make it into the model in the sense relevant to US copyright law

47282847 6/26/2025|||

In that line of reasoning, does it really matter how “close“ jurisdictions are to each other — also considering how what courts rule doesn’t matter as much in countries governed by civil law - but merely the enforcement of the Berne convention? As in, if something is considered to be under copyright in any one of all the signatory countries of it, the others have to respect that?

skissane 6/26/2025||

No, the Berne convention doesn’t work that way. It requires you to extend copyright protection to the works of the nationals of the other parties on the same terms as you offer it to the works of your own nationals; but if a certain category of works are excluded from copyright for your own nationals, it doesn’t require you to recognise copyright in those works when authored by foreign nationals, even if their own country’s laws do

Real example: UK law says telephone directories are eligible for copyright, US law says they aren’t. The US is not violating the Berne convention by refusing to recognise copyright in UK phone directories, because the US doesn’t recognise copyright in US phone directories either. A violation would be if the US refused to recognise copyright in UK phone directories but was willing to recognise it in US ones

47282847 6/27/2025||

Makes sense. Thanks!

dragonwriter 6/27/2025||||

> It's not even clear you can license language model weight though.

It is clear you can license (give people permissions to) model weights, it is less clear that there is any law protecting them such that they need a license, but since there is always a risk of suit and subsequent loss in the absence of clarity, licenses are at least beneficial in reducing that risk.

AlanYx 6/26/2025||||

That's one of the reasons why they gate Gemini Nano with the "Gemini Nano Program Additional Terms of Service". Even if copyright doesn't subsist in the weights or if using them would be fair use, they still have recourse in breach of contract.

derefr 6/26/2025|||

I've wondered about this for a while now (where e.g. some models of HuggingFace require clickwrap license agreements to download, that try to prohibit you from using the model in certain ways.)

It seems to me that if some anonymous ne'er-do-well were to publicly re-host the model files for separate download; and you acquired the files from that person, rather than from Google; then you wouldn't be subject to their license, as you never so much as saw the clickwrap.

(And you wouldn't be committing IP theft by acquiring it from that person, either, because of the non-copyrightability.)

I feel that there must be something wrong with that logic, but I can't for the life of me think of what it is.

skissane 6/26/2025|||

The problem is that contracts don’t bind subsequent recipients, copyright does

Google gives the model to X who gives it to Y who gives it to Z. X has a contract with Google, so Google can sue X for breach of contract if they violate its terms. But do Y and Z have such a contract? Probably not. Of course, Google can put language in their contract with X to try to make it bind Y and Z too, but is that language going to be legally effective? More often than not, no. The language may enable Google to successfully sue X over Y and Z’s behaviour, but not successfully sue Y and Z directly. Whereas, with copyright, Y and Z are directly liable for violations just as X is

jinlisp 6/26/2025||

Thank you, this is a nice point to consider. Don't know if using the weights could be considered equivalent or implying accepting the terms of services from weights creators.

skissane 6/26/2025||

Contracts require agreement (a “meeting of the minds”)… if X makes a contract with Google, that contract between Google and X can’t create a contract between Google and Y without Y’s agreement. Of course, Google’s lawyers will do all they can possibly can to make the contract “transitive”, but the problem is contracts fundamentally don’t have the property of transitivity.

Now, if you are aware of a contract between two parties, and you actively and knowingly cooperate with one of them in violating it, you may have some legal liability for that contractual violation even though you weren’t formally party to the contract, but there are limits - if I know you have signed an NDA, and I personally encourage you to send me documents covered by the NDA in violation of it, I may indeed be exposed to legal liability for your NDA violation. But, if we are complete strangers, and you upload NDA-protected documents to a file sharing website, where I stumble upon them and download them - then the legal liability for the NDA violation is all on you, none on me. The owner of the information could still sue me for downloading it under copyright law, but they have no legal recourse against me under contract law (the NDA), because I never had anything to do with the contract, neither directly nor indirectly

If you download a model from the vendor’s website, they can argue you agreed to the contract as a condition of being allowed to make the download. But if you download it from elsewhere, what is the consideration (the thing they are giving you) necessary to make a binding contract? If the content of the download is copyrighted, they can argue the consideration is giving you permission to use their copyrighted work; but if it is an AI model and models are uncopyrightable, they have nothing to give when you download it from somewhere else and hence no basis to claim a contractual relationship

What they’ll sometimes do, is put words in the contract saying that you have to impose the contract on anyone else you redistribute the covered work to. And if you redistribute it in full compliance with those terms, your recipients may find themselves bound by the contract just as you are. But if you fail to impose the contract when redistributing, the recipients escape being bound for it, and the legal liability for that failure is all yours, not theirs

jinlisp 6/27/2025||

Thanks for such a clear and logical explanation, it is a pleasure to read explanations like this. Anyway, I am always skeptical about how law is applied, sometimes the spirit of the law is bended by the weight of the powerful organizations, perhaps there are some books which explains how the spirit of the law is not applied when powerful organizations are able to tame it.

km3r 6/26/2025||||

Why not? Training isn't just "data in/data out". The process for training is continuously tweaked and adjusted. With many of those adjustments being specific to the type of model you are trying to output.

skissane 6/26/2025||

The US copyright office’s position is basically this-under US law, copyrightability requires direct human creativity, an automated training process involves no direct human creativity so cannot produce copyright. Now, we all know there is a lot of creative human effort in selecting what data to use as input, tinkering with hyperparameters, etc - but the copyright office’s position is that doesn’t legally count - creative human effort in overseeing an automated process doesn’t change the fact that the automated process itself doesn’t directly involve any human creativity. So the human creativity in model training fails to make the model copyrightable because it is too indirect

By contrast, UK copyright law accepts the “mere sweat of the brow” doctrine, the mere fact you spent money on training is likely sufficient to make its output copyrightable, UK law doesn’t impose the same requirements for a direct human creative contribution

IncreasePosts 6/26/2025|||

Doesn't that imply just the training process isn't copyrightable? But weights aren't just training, they're also your source data. And if the training set shows originality in selection, coordination, or arrangement, isn't that copyrightable? So why wouldn't the weights also be copyrightable?

skissane 6/26/2025|||

The problem is, can you demonstrate that originality of selection and arrangement actually survives in the trained model? It is legally doubtful.

Nobody knows for sure what the legal answer is, because the question hasn’t been considered by a court - but the consensus of expert legal opinion is copyrightability of models is doubtful under US law, and the kind of argument you make isn’t strong enough to change that. As I said, different case for UK law, nobody really needs your argument there because model weights likely are copyrightable in the UK already

littlestymaar 6/27/2025||

> The problem is, can you demonstrate that originality of selection and arrangement actually survives in the trained model? It is legally doubtful.

It's particularly perilous since the AI trainers are at the same time in a position where they want to argue that copyrighted work they included in the training data don't actually survive in the trained model.

badsectoracula 6/26/2025||||

For the same reason GenAI output isn't copyrightable regardless of how much time you spend tweaking your prompts.

Also i'm pretty sure none of the AI companies would really want to touch the concept of having the copyright of source data affect the weight's own copyright, considering all of them pretty much hoover up the entire Internet without caring about those copyrights (and IMO trying to claim that they should be able to ignore the copyrights of training data and also that the GenAI output is not under copyright but at the same trying trying to claim copyright for the weights is dishonest, if not outright leechy).

rvnx 6/26/2025|||

The weights are mathematical facts. As raw numbers, they are not copyrightable.

IncreasePosts 6/26/2025|||

`en_windows_xp_professional_with_service_pack_3_x86_cd_vl_x14-73974.iso` is also just raw numbers, but I believe Windows XP was copyrightable

vntok 6/26/2025||

Interesting.

From what I understand, copyright only applies to the original source code, GUI and bundled icon/sound/image files. Functionality etc. would fall under patent law. So the compiled code on your .ISO for example would not only be "just raw numbers" but uncopyrightable raw numbers.

lolc 6/27/2025||

Of course copyright applies to binaries too. It's long been established that compiled code is a derived work of its source.

victorbjorklund 6/27/2025|||

A computer program is just 0s and 1s. Harry Potter books are just raw letters or raw numbers if an ebook.

(The combination is what makes it copyrightable).

littlestymaar 6/27/2025||

In practice it's not the combination that is copyrighted (you cannot claim copyright over a binary just because you zipped it, or over a movie because you re-encoded it, for instance).

It's the “actual creativity” inside. And it is a fuzzy concept.

floridianfisher 6/27/2025|||

According go the Gemma 3n preview blog, Gemma 3n shares the same architecture as the upcoming version of Gemini Nano.

The ‘n’ presumably stands for Nano.

Nano is a proprietary model that ships with Android. Gemma is an open model that can be adapted and used anywhere.

Sources: https://developers.googleblog.com/en/introducing-gemma-3n/

Video in the in the blog linked in this post

jabroni_salad 6/26/2025|||

Gemma is open source and apache 2.0 licensed. If you want to include it with an app you have to package it yourself.

gemini nano is an android api that you dont control at all.

nicce 6/26/2025|||

> Gemma is open source and apache 2.0 licensed

Closed source but open weight. Let’s not ruin the definition of the term in advantage of big companies.

zackangelo 6/26/2025|||

Your reply adds more confusion, imo.

The inference code and model architecture IS open source[0] and there are many other high quality open source implementations of the model (in many cases contributed by Google engineers[1]). To your point: they do not publish the data used to train the model so you can't re-create it from scratch.

[0] https://github.com/google-deepmind/gemma [1] https://github.com/vllm-project/vllm/pull/2964

candiddevmike 6/26/2025|||

If for some reason you had the training data, is it even possible to create an exact (possibly same hash?) copy of the model? Seems like there are a lot of other pieces missing like the training harness, hardware it was trained on, etc?

OneDeuxTriSeiGo 6/26/2025|||

to be entirely fair that's quite a high bar even for most "traditional" open source.

And even if you had the same data, there's no guarantee the random perturbations during training are driven by a PRNG and done in a way that is reproducible.

Reproducibility does not make something open source. Reproducibility doesn't even necessarily make something free software (under the GNU interpretation). I mean hell, most docker containers aren't even hash-reproducible.

zackangelo 6/26/2025|||

Yes, this is true. A lot of times labs will hold back necessary infrastructure pieces that allow them to train huge models reliably and on a practical time scale. For example, many have custom alternatives to Nvidia’s NCCL library to do fast distributed matrix math.

Deepseek published a lot of their work in this area earlier this year and as a result the barrier isn’t as high as it used to be.

nicce 6/26/2025|||

I am not sure if this adds even more confusion. Linked library is about fine-tuning which is completely different process.

Their publications about producing Gemma is not accurate enough that even with data you would get the same results.

zackangelo 6/26/2025||

In the README of the linked library they have a code snippet showing how to have a conversation with the model.

Also, even if it were for fine tuning, that would require an implementation of the model’s forward pass (which is all that’s necessary to run it).

nicce 6/26/2025||

That is completely different discussion. Otherwise, even Gemini 2.5 Pro would be open-source with this logic since clients are open-source for interacting with the cloud APIs.

Imustaskforhelp 6/26/2025|||

Yes!! But I doubt how many are truly truly open source models since most just confuse open source with open weights and the definition has been changed really smh.

cesarb 6/26/2025|||

> Gemma is open source and apache 2.0 licensed.

Are you sure? On a quick look, it appears to use its own bespoke license, not the Apache 2.0 license. And that license appears to have field of use restrictions, which means it would not be classified as an open source license according to the common definitions (OSI, DFSG, FSF).

jabroni_salad 6/27/2025|||

Perhaps we could rephrase my statement to "there are a bunch of green checkmarks on github that may or may not mean anything depending on who you ask."

yencabulator 6/27/2025|||

Wait, what files are you reading? https://github.com/google-deepmind/gemma/blob/main/LICENSE

(Even then, releasing some source code under Apache-2 does not make a model "open source".)

Ah I found https://ai.google.dev/gemma/terms

  > You must not use any of the Gemma Services:
  >
  > 1. for the restricted uses set forth in the Gemma Prohibited Use Policy at ai.google.dev/gemma prohibited_use_policy ("Prohibited Use Policy"), which is hereby incorporated by reference into this Agreement; or
  > 2. in violation of applicable laws and regulations.

https://ai.google.dev/gemma/prohibited_use_policy

Yeah, definitely not open source, even if they had released all the training data.

impure 6/26/2025|||

I suspect the difference is in the training data. Gemini is much more locked down and if it tries to repeat something from the draining data verbatim you will get a 'recitation error'.

readthenotes1 6/26/2025||

Perplexity.ai gave an easier to understand response than Gemini 2.5 afaict.

Gemini nano is for Android only.

Gemma is available for other platforms and has multiple size options.

So it seems like Gemini nano might be a very focused Gemma everywhere to follow the biology metaphor instead of the Italian name interpretation

ridruejo 6/26/2025||

The fact that you need HN and competitors to explain your offering should make Google reflect …

gardnr 6/26/2025||

The Gemini billing dashboard makes me feel sad and confused.

jwr 6/27/2025||

I'd genuinely like to know how these small models are useful for anyone. I've done a lot of experimenting, and anything smaller than 27B is basically unusable, except as a toy. All I can say for smaller models is that they sometimes produce good answers, which is not enough for anything except monkeying around.

I solved my spam problem with gemma3:27b-it-qat, and my benchmarks show that this is the size at which the current models start becoming useful.

runeblaze 6/27/2025||

I am sure as ideation devices these can work fine. I treat this more like basic infra. I would absolutely love the future where most phones have some small LLM built in, kind of like a base layer of infra

newswangerd 6/27/2025|||

The best use case I've found for tiny models (<5bn params) as a reference tool for when I don't have WiFi. I've been using qwen on my MacBook Air as a replacement for Google while I'm writing code on flights. They work great for asking basic questions about syntax and documentation.

concats 6/27/2025|||

There are use cases where even low accuracy could be useful. I can't predict future products, but here are two that are already in place today:

- On the keyboard on iphones some sort of tiny language model suggest what it thinks are the most likely follow up words when writing. You only have to pick a suggested next word if it matches what you were planning on typing.

- Speculative decoding is a technique which utilized smaller models to speed up the inference for bigger models.

I'm sure smart people will invent other future use cases too.

mkl 6/27/2025|||

Qwen2.5-VL 7B is pretty impressive at turning printed or handwritten maths lecture notes into Latex code, and is small enough to run slowly on a laptop without enough VRAM. Gemma3 4B was useless at this though, and got stuck in loops or tried to solve the maths problems instead of just converting the working to Latex (but it was much faster as it fit into VRAM).

It sounds like you're trying to use them like ChatGPT, but I think that's not what they're for.

eternityforest 6/28/2025|||

Gemma3 4B can answer questions about 80% of the time given access to a ZIM file of Wikipedia.

Unfortunately it still takes 20 seconds to run on a CPU, so I can't think of many practical uses at the moment until we get cheap low power AI accelerators that are a bit easier to develop for....

omgitspavel 6/27/2025|||

I use gemma3:1b model (well, gemma3n:e2b since today) to summarize articles in my RSS reader. Works extremely well for such a simple task and runs on CPU on my hetzner server, so I don't have to pay electricity bill for running it on GPU at home

iamnotagenius 6/27/2025||

Tiny, 4b or less models are designed for finetuning for some narrow tasks; this way can outperform large commercial models for a tiny fraction of price. Also great for code autocomplete.

7b-8b are great coding assistants if all you need is dumb fast refactoring, that cannot quite be done with macros and standard editor functionality but still primitive, such as "rename all methods having at least one argument of type SomeType by prefixing their names with "ST_".

12b is a threshold where models start writing coherent prose such Mistral Nemo or Gemma 3 12b.

actinium226 6/26/2025||

I'm not a fan of this anarchic naming convention that OpenAI has apparently made standard across the industry.

unsupp0rted 6/26/2025|

What would you have called it?

actinium226 6/27/2025|||

I wouldn't have added a random letter and I would have chosen a name that's less easy to conflate with Gemini.

Aeolun 6/27/2025||||

Gemma 4? I feel that one was incredibly obvious. Let us please just increase the version numbers.

Anthropic is better about this, but then shifted their ordering with the v4 models. Arguably better, but still quite annoying since everything pre-4 uses a different naming scheme.

ColonelPhantom 6/27/2025||

What do you mean by Anthropic shifting their ordering? It seems to still be consistently Opus > Sonnet > Haiku. They didn't release 4 Haiku, but they also didn't release 3.5 Opus, and pricing wise Sonnet 4 lines up with earlier Sonnets.

As for this Gemma release, I don't think Gemma 4 would be an appropriate name. 3n is limited to very small versions (like 8B total parameters) and is therefore likely less powerful than Gemma 3.

From my impression this is more like a "Gemma 3 Lite" that provides a better speed/quality tradeoff than the smaller Gemma 3 models.

Aeolun 6/28/2025||

claude-3-7-sonnet-latest -> claude-sonnet-4

Also, I think you just came up with a better name than Gemma 3n. Gemma 3 Lite is a lot easier to understand.

danielhanchen 6/26/2025||

Made some GGUFs if anyone wants to run them!

./llama.cpp/llama-cli -hf unsloth/gemma-3n-E4B-it-GGUF:UD-Q4_K_XL -ngl 99 --jinja --temp 0.0

./llama.cpp/llama-cli -hf unsloth/gemma-3n-E2B-it-GGUF:UD-Q4_K_XL -ngl 99 --jinja --temp 0.0

I'm also working on an inference + finetuning Colab demo! I'm very impressed since Gemma 3N has audio, text and vision! https://docs.unsloth.ai/basics/gemma-3n-how-to-run-and-fine-...

magicalhippo 6/26/2025||

Tried the E4B model in Ollama and it's totally broken when interpreting images. The output depends only on the text and is consistent in that way, but otherwise completely wrong.

Works fine with regular Gemma 3 4B, so I'll assume it's something on Ollama's side. edit: yep, text-only for now[1], would be nice if that was a bit more prominent than burried in a ticket...

Don't feel like compiling llama.cpp myself, so I'll have to wait to try your GGUFs there.

[1]: https://github.com/ollama/ollama/issues/10792#issuecomment-3...

danielhanchen 6/27/2025||

Oh I don't think multimodal works yet - it's text only for now!

upghost 6/26/2025|||

Literally was typing out "Unsloth, do your thing!!" but you are way ahead of me. You rock <3 <3 <3

Thank you!

danielhanchen 6/26/2025||

:) Thanks!

bilsbie 6/26/2025|||

Thanks! What kind of rig do I need?

jszymborski 6/26/2025||

Likely nothing crazy. My RTX 2080 is pumping out 45 tok/s.

knowaveragejoe 6/26/2025|||

What is `jinja` in this context?

Tostino 6/26/2025|||

The chat template is stored as a Jinja template.

gowld 6/26/2025|||

https://jinja.palletsprojects.com/en/stable/

refulgentis 6/26/2025||

Somethings really screwy with on-device models from Google, I can't put my finger on what, and I think being ex-Google is screwing with my ability to evaluate.

Cherry-picking something that's quick to evaluate:

"High throughput: Processes up to 60 frames per second on a Google Pixel, enabling real-time, on-device video analysis and interactive experiences."

You can download an APK from the official Google project for this, linked from the blogpost: https://github.com/google-ai-edge/gallery?tab=readme-ov-file...

If I download it, run it on Pixel Fold, actual 2B model which is half the size of the ones the 60 fps claim is made for, it takes 6.2-7.5 seconds to begin responding (3 samples, 3 diff photos). Generation speed is shown at 4-5 tokens per second, slightly slower than what llama.cpp does on my phone. (I maintain an AI app that inter alia, wraps llama.cpp on all platforms)

So, *0.16* frames a second, not 60 fps.

The blog post is so jammed up with so many claims re: this is special for on-device and performance that just...seemingly aren't true. At all.

- Are they missing a demo APK?

- Was there some massive TPU leap since the Pixel Fold release?

- Is there a lot of BS in there that they're pretty sure won't be called out in a systematic way, given the amount of effort it takes to get this inferencing?

- I used to work on Pixel, and I remember thinking that it seemed like there weren't actually public APIs for the TPU. Is that what's going on?

In any case, either:

A) I'm missing something, big or

B) they are lying, repeatedly, big time, in a way that would be shown near-immediately when you actually tried building on it because it "enables real-time, on-device video analysis and interactive experiences."

Everything I've seen the last year or two indicates they are lying, big time, regularly.

But if that's the case:

- How are they getting away with it, over this length of time?

- How come I never see anyone else mention these gaps?

mlsu 6/26/2025||

It looks to me by the marketing copy that the vision encoder can run 60FPS.

> MobileNet-V5-300M

Which makes sense as it's 300M in size and probably far less complex, not a multi billions of parameters transformer.

refulgentis 6/26/2025||

I agree that's the most likely interpretation - does it read as a shell game to you? Like, it can do that but once you get the thing that can use the output involved it's 1/100th of that? Do they have anything that does stuff with the outputs from just MobileNet? If they don't, how are they sure I can build 60 fps realtime audiovisual experiences they say I can?

namibj 6/26/2025||

Classify/similarity/clustering works fine with just an encoder, doesn't it?

I guess there's benefit to running that step without subsampling to the initial 256 tokens per image/frame ( https://ai.google.dev/gemma/docs/gemma-3n/model_card#inputs_... ) to go on from that, https://github.com/antimatter15/reverse-engineering-gemma-3n suggests these are 2048 dimensional tokens, which makes these 60 Hz frame digestion rate produce just under 31.5 Million floats-of-your-choosen-precision per second. At least at the high (768x768) input resolution, this is a bit less than one float per pixel.

I guess maybe with very heavy quantizing to like 4 bit that could beat sufficiently-artifact-free video coding for then streaming the tokenized vision to a (potentially cloud) system that can keep up with the 15360 token/s at (streaming) prefill stage?

Or I could imagine just local on-device visual semantic search by expanding the search query into a bunch of tokens that have some signed desire/want-ness each and where the search tokens get attended to the frame's encoded tokens, activation function'd, scaled (to positive/negative) by the search token's desire score, and then just summed over each frame to get a frame score which can be used for ranking and other such search-related tasks.

(For that last thought, I asked Gemini 2.5 Pro to calculate flops load, and it came out to 1.05 MFLOPS per frame per search token; Reddit suggests the current Pixel's TPU does around 50 TOPS, so if these reasonably match each terminology wise, assuming we're spending about 20% of it's compute on the search/match aspect, it comes out to an unreasonably (-seeming) about 190k tokens the search query could get expanded to. I interpret this result to imply that quality/accuracy issues in the searching/filtering mechanism would hit before encountering throughout issues in this.)

refulgentis 6/27/2025||

There's a lot of Not Even Wrong, in the Pauli sense, going on presumably because back-of-napkin-with-LLM is like rocket fuel, I love it. :) But, the LLM got ahead of understanding the basics. I could write probably 900 words. Lets pull one thread out as an example:

> I guess maybe with very heavy quantizing to like 4 bit that could beat sufficiently-artifact-free video coding for then streaming the tokenized vision to a (potentially cloud) system that can keep up with the 15360 token/s at (streaming) prefill stage?

the 6-7s I am seeing is what it costs to run an image model, even running on GPU on M4 Max with 64GB of GPU RAM. This repros with my llama.cpp wrapper, and the llama.cpp demo of it.

It is simply getting tokens that is taking that long.

Given that reality, we can ignore it, of course. We could assume the image model does run on Pixel at 60 fps, and there's just no demo APK available, or just say it's all not noteworthy because as the Google employee points out, they can do it inside Google, and external hasn't been prioritized.

The problem is that the blog post is announcing this runs on device at up to 60 fps today, and announces $150K in prizes if you work based on this premise. We have 0 evidence of this externally, the most plausible demo of it released externally by Google is running at 1/500th of this speed, and 1 likely Google employee is saying "yup, it doesn't, we haven't prioritized external users!" The best steelman we can come up with is "well, if eventually the image model runs at 60 fps, we could stream it to an LLM in the cloud with about 4 seconds initiate + prefill latency!"

That's bad.

catchmrbharath 6/26/2025||

The APK that you linked, runs the inference on CPU and does not run it on Google Tensor.

refulgentis 6/26/2025|||

That sounds fair, but opens up another N questions:

- Are there APK(s) that run on Tensor?

- Is it possible to run on Tensor if you're not Google?

- Is there anything at all from anyone I can download that'll run it on Tensor?

- If there isn't, why not? (i.e. this isn't the first on device model release by any stretch, so I can't give benefit of the doubt at this point)

catchmrbharath 6/26/2025||

> Are there APK(s) that run on Tensor?

No. AiCore service internally uses the inference on Tensor (http://go/android-dev/ai/gemini-nano)

> Is there anything at all from anyone I can download that'll run it on Tensor?

No.

> If there isn't, why not? (i.e. this isn't the first on device model release by any stretch, so I can't give benefit of the doubt at this point)

Mostly because 3P support has not been a engineering priority.

refulgentis 6/26/2025||

> Mostly because 3P support has not been a engineering priority.

Got it: assuming you're at Google, in eng. parlance, it's okay if it's not Prioritized™ but then product/marketing/whoever shouldn't be publishing posts around the premise it's running 60 fps multimodal experiences on device.

They're very, very, lucky that ratio of people vaguely interested in this, to people follow through on using it, is high, so comments like mine end up at -1.

my123 6/26/2025||

Tensor is essentially shipping subpar hardware with not even taking care of software properly.

https://ai.google.dev/edge/litert/android/npu/overview has been identical for a year+ now.

In practice Qualcomm and MediaTek ship working NPU SDKs for third party developers, NNAPI doesn't count and is deprecated anyway.

refulgentis 6/27/2025||

Man this is a funny situation. Ty for sharing, more or less confirms my understanding. Couldn't quite believe it when I was in Google, or out of Google. This should be a big scandal afaict. What is going on???

(n.b. to readers, if you click through, the Google Pixel Tensor API is coming soon. So why in the world has Google been selling Tensor chips in Pixel as some big AI play since...idk, at least 2019?)

my123 6/27/2025||

Yes, you can use first-party models on the Pixel NPUs or you're stuck with NNAPI which is self-admittedly deprecated by Google and doesn't work all that well.

On third party model workloads, this is what you will get:

https://ai-benchmark.com/ranking.html

https://browser.geekbench.com/ai-benchmarks (NPU tab, sort w/ quantisation and/or half precision)

Google is clearly not serious on Pixels in practice, and the GPU performance is also behind by quite a lot compared to flagships, which really doesn't help. CPUs are also behind by quite a lot too...

lostmsu 6/26/2025|||

How does their demo work then? It's been 3 months since 3n was first released publicly.

refulgentis 6/27/2025||

What demo?

The only one we have works as described, TL;Dr 0.1 fps.

conradev 6/26/2025||

Kevin Kwok did a great job taking it apart: https://github.com/antimatter15/reverse-engineering-gemma-3n

ericvolp12 6/26/2025||

The Y-axis in that graph is fucking hilarious

g92sdi 7/9/2025|

Anyone run this on an RK3588 yet?

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