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Posted by Luc 12 hours ago

Survival LLM: AI assistant and emergency library that runs on your own computer(www.brangus.io)
314 points | 129 comments
x3haloed 10 hours ago|
This topic is bringing out the hallucination-panic crowd.

It's perfectly safe to use LLMs to surface underlying data and knowledge without having to trust that it's giving you correct advice.

Use the LLM as search technology: string match -> semantic search -> search intelligence.

This is especially helpful when you don't know the right question to ask. Semantics only help you find text that is semantically near the input query. Semantics won't help you when what you are looking for is connected to what you have by something other than semantics, like causation, mechanism, or interpretation.

Trying to figure out why your crops aren't growing well will likely require you to read several articles across a range of sciences, probably scoped to the specific conditions you are dealing with. A semantic search is not going to surface those first.

Allowing an LLM to chain together several sources for you to read first does not require you to ask it for a conclusion.

macNchz 9 hours ago||
The readme on Github does say the system produces hallucinated sources https://github.com/anonnerdfrenzy/survival-llm#how-the-model..., but really you're correct, for this kind of highly targeted use case the LLM's summary could probably be ignored entirely and the system could work extremely well even just as a search engine: index all of the content up front, chunked by paragraph and maybe enriched with a HyDE step, have the LLM facilitate running a handful of hybrid keyword/semantic searches based on the user's question and reranking the results, and show the exact pieces of text in the corpus that are most responsive to their question. No summary needed.
ASalazarMX 10 hours ago|||
A great strength of LLMs is how they provide useful answers even if the prompt has glaring spelling or grammatical mistakes. If your prompt is not great, as you said, they will reply in a way that helps you identify that flaws, and learn how to steer the model better.

They're amazingly useful tools, but they're nowhere the level believers want them to be, not yet.

vorticalbox 10 hours ago||
Yes this has been very useful for me this week. I trapped my middle finger on my right hand in a door and it really messed up my typing.

I tried using dictation but I really disliked speaking to it.

You can write a really messed up sentence and it almost always worked out what I meant.

Quite amazing actually

alansaber 8 hours ago|||
Can a bad LM implementation surface bad references? Yes. Are LMs overwhelmingly useful for research? Yes.
gfody 3 hours ago||
Is a bad LM implementation still useful for research? Shmaybe.
7kago_yomi 5 hours ago|||
In a true emergency, there are often many cases where you need not just information retrieval, but "thinking and reasoning" to deal with unprecedented situations, right? Is it technically possible to balance lightweight local performance with thinking capability, while avoiding the risk of hallucinations in life-or-death instructions?
xiaoyu2006 8 hours ago|||
But at this point why even bring a full model into scope in the first place.. just run some cheap embedding retriever
nghiemphucminh7 5 hours ago||
[flagged]
meristohm 5 hours ago||
Nevermind hallucinations, the donkey-work is important; why bypass the hours of research, which trains our in-built LLM and can lead to new realizations, and get the carrot without much effort? This LLM stuff feels like a candybar; the anticipation of the magic feels good, the thing tastes good while you're eating it, and everything thereafter is shit, but we easily forget, and reach for the next candybar. I appreciated Blindboy Boatclub's take in his podcast episode "Artificial intelligence is Disgusting and it will never replace Artists" from 2026 March 17. I also appreciate Electrical Engineer & Computer Scientist Timnit Gebru's perspective on these stochastic parrots. While intraspecies diversity confers, up to a point, a survival benefit, consider the long-term consequences of playing this particular game. We don't have to eat every candybar the rich mostly-guys ply us with.
FluffyPancake 4 hours ago||
The premise in this case is to get answers quickly in an emergency situation. You don’t want to tell the person with a burn injury to wait a bit since you always wanted to learn how burns are treated.
grey-area 30 minutes ago||
You also don’t want to get advice like that cooking advice to make a glue pizza.
jvanderbot 9 hours ago||
Shoutout to project nomad.

https://www.projectnomad.us/

its got a ton of useful options, preconfigured, integrates pretty easily, and can use any local LLM or data.

KiwiJohnno 8 hours ago|
Interesting. I have a mac mini I run headless dedicated for LLM inference. Do you know if I could run project nomad on a linux box but use qwen on the mac for the AI stuff? I can't find any info on if this configuration is possible.
jvanderbot 7 hours ago||
Sure can. I did similar.
hackerbone 12 minutes ago||
All this is interesting, but I always had a question: in a state of disaster or some mishap even if you have an light LLM running - most important is a power source/electricity. Without it nothing will work.
wanderingbit 6 hours ago||
I set this up on my machine and tested it with the following question:

How can I build a bow drill so I can start a fire?

It got it partially right: spindle, bow with string tied the correct way, and fire board. But then it flubbed by saying you put the spindle between both hands and move your hands back and forth to rotate the spindle and create the necessary friction… this totally ignores using the bow to rotate the spindle! It also mentioned “fanning the sparks” but there is absolutely no way your bow drill is going to create sparks.

I asked a frontier model to check the survival LLM’s conversation trace and it pointed out the errors.

I didn’t see obvious errors in the other 3 prompts I used, but this one seemed pretty egregious for a survival LLM.

I thank the creator for making this, but take it with a grain of salt.

jmuguy 5 hours ago|
Did it give you the source(s) so you could double check?
paxy 4 hours ago||
Giving incorrect instructions and saying "go check the sources" is worse than just returning the sources. Aka a search engine.
daveguy 3 hours ago||
That's why the question was whether it gave sources, not whether they asked it to go check sources. Yeah, LLMs suck and you should always assume false information. 80% accurate is not production ready.
rnd0 11 hours ago||
Considering the tendency even now of LLMs to hallucinate, and the hardware requirements for any kind of LLM -why not just gather those resources into some sort of local archive that can be searched without an LLM?

This seems redundant and requiring more overhead while providing less reliability than something like Kiwix to me.

nico 11 hours ago||
Not sure about how the code in this project works. But the way I see it, an LLM+chat is a great interface for information. If you then connect it to a db with the knowledge/articles you need, then you get a great way to navigate it, without needing the model to memorize all the info
mapontosevenths 11 hours ago|||
I think that if I were to build this I might skip the LLM and just setup a nice interface to the source files using qmd style search. [0]

That way the tiny model isn't acting as a potentially incorrect interpreter but you still get semantic search to help you find the right documents quickly.

I suppose there is something to be said for a good summarization, I just worry that these tiny models aren't really GOOD summarizers.

[0] https://github.com/tobi/qmd

nico 11 hours ago||
Awesome, I didn't know qmd style search, thank you!

I'm all up for using the better/simpler task for the job. That's been a thing lately also with the Jev/decision models hype, most of those things can either already be done by a pretrained classifier[0], or you can start with a bigger model and then train your smaller/adhoc one when you have some data (it doesn't even take much for most applications, you can get about 95% accuracy on email classification with 50-100 examples)

0: http://jeffyclassify.com/blog/when-llms-fail-at-classificati...

rafterydj 11 hours ago|||
I agree with the OP; this technology does not seem an appropriate fit for survival equipment. By definition survival scenarios can be life and death. Even one "You're absolutely right!" level mistake from an LLM could give a user bad information, leading to John Doe eating a mushroom he really should not have eaten.
tourmalinetaco 11 hours ago||
I agree with your point, but if John Doe is foraging mushrooms without experience of the local flora (which I doubt this archive contains), then John Doe is kinda asking for it.

The bigger issue in this context would be canning, such as incorrectly explaining the mechanisms to avoid botulism (acid and/or pressure canning), or perhaps incorrectly wiring in repairs. However, again, it’s best to practice with these prior to emergencies anyway.

It should be noted though, that the model does source its claims, so you can fact check it and should review this information regularly.

lukan 4 hours ago||
Slight OT Survival tip, if you are starving don't go for mushrooms in the first place (unless you really, really know) - even if you get the right one, they don't contain much energy for you to burn anyway. The larves you often found in them, probably contain more. So mushrooms are a nice addition (and in rare cases good medicine), but for survival you should focus on something else.
ASalazarMX 10 hours ago|||
Why not both? After the collapse of civilization, as long as you can maintain the computer running, you could educate the next generation as soon as they could write. Maybe they will bypass the local agent as they learn their way into the library, to save energy.

Consider they won't have access to the plentiful practice opportunities we have now, most resources would have to be spent with a practical goal.

Sky_Knight 2 hours ago|||
Survival implies that energy would definitely be a very limited resource. Using it to replace knowledge is just... I can't describe it even. Why not just learn it on our own and keep a small guidebook in your backpack. Our overrelience on computers and now LLMs, even for basic life-saving knowledge is simply our way of going the way of the dodo... I use frontier models at work, I definitely get more done. However I will never use it as a replacement of my own knowledge.
datsci_est_2015 10 hours ago||||
Both. Both is good.

A field guide to foraging for edible mushrooms will probably be more practical than naïve use of an LLM: “can I eat this mushroom?” is an exercise in trust that I will maybe never be comfortable with.

But “how do I effectively forage for edible mushrooms” is a great stepping stone.

whoanoway 9 hours ago||
[dead]
munk-a 10 hours ago||||
Nvidia GPUs in the post-apocalyptic radioactive barrens are going to be stupid pricey.
AdieuToLogic 3 hours ago|||
> After the collapse of civilization, as long as you can maintain the computer running ...

One of these situations prohibits the other.

x3haloed 11 hours ago|||
Decent LLMs can run on anything now: https://github.com/he-be/turbo-fieldfare

Kiwix is great, but I'd also like a language model to be able to deeply interrogate all of that information much faster than I can read.

Just arrange its harness so that its responses are grounded in the source material and require source citations for everything. Then read the citations to confirm it's not a hallucination.

xamuel 4 hours ago|||
>can run on anything now: (link to turbo fieldfare)

Except the build process there requires a specific recent version of swift. Hardly a good definition of "anything"

iAMkenough 8 hours ago|||
I like this "both / and" approach. Restructure this project to have the LLM source from local Kiwix data you've selected to make available offline, rather than a source of data you're unfamiliar with. References point directly to your Kiwix library.
lrvick 10 hours ago|||
> and the hardware requirements for any kind of LLM

You can run bonsai2 27b on basically any gaming GPU from the last 15 years including on game consoles.

Everyone has access to this stuff now if they bothered to look beyond the marketing from big labs trying to collect subscription revenue.

I work on compilers, kernels, and operating systems using exclusively consumer GPUs.

rebolek 10 hours ago|||
I think that for situations like this we should invent a device that can hold information for an arbitrary amount of time even without electricity. Maybe we could call it "BOOK" or something like that.
anigbrowl 10 hours ago|||
This isn't clever or insightful. You can of course condense down critical information into a survival handbook, but in existential crises you don't necessarily know in advance what you'll need to know. Wikipedia (as a benchmark repository of knowledge) is ~5 million pages and would require a decent-size room to store if printed out. By contrast, a laptop + solar panel can fit in a backpack. SD cards/USB sticks with the capacity to store all of Wikipedia are a few $ each.

If things are so bad that you need to factor in the non-operability of any electronic devices, how many indestructible paper libraries are you planning to build and manage in advance, and at what budget?

_superposition_ 7 hours ago||
The pedanticty (or is it pedanticness???) on hn is astonishing sometimes.

If there's any place to get an answer it's here.

Bravo my friend. And I mean that in a good way. Love me some diversity.

dorianmariecom 10 hours ago|||
and then we have a lot of “books” so we collect them in “shelves” then in “libraries” then we want to search them etc etc
IshKebab 9 hours ago|||
> the tendency even now of LLMs to hallucinate

That seems to have been mostly solved through scale. I was asking Opus 5.5 about some obscure stuff and it kept hedging "this is from memory since I don't have internet access" (it's sandboxed), "I'm reasonably sure about this but not about the numbers" etc.

Even though it was obscure enough that Google couldn't easily find the paper that Opus remembered (I couldn't find it at all with the traditional search results; the AI summary found it on my third try), it actually didn't hallucinate it.

In fact I can't remember Opus 5.5 ever hallucinating. They've clearly done some work on that.

Obviously this local LLM is going to hallucinate all over you though.

tourmalinetaco 11 hours ago||
It already is a local archive that can be searched independently, but the LLM does RAG and is, according to them, 95% accurate. It can be useful if you don’t remember where to find a source/what words to search for, but even a durable device with Kiwix would be useless in a a lot of survival situations people imagine.

Undoubtedly useful in the right contexts, particularly for local repair or homesteading, but “survival” does imply that this would be more useful in an SHTF situation.

janandonly 29 minutes ago||
We need this, but running on smartphones.

Also, I am surprised that the difference between 32GB and 128GB in right answers is so small:

* Mac with 128 GB or more memory NVIDIA Nemotron 3.5 Super 21 of 22 right 80 GB

* Windows PC with 32 GB or more NVIDIA Nemotron 3.5 Lightning 19 of 22 right 25 GB

saaaaaam 11 hours ago||
> Mac or PC with 16–31 GB | IBM Granite 4.2 8B | 14 of 22 right | 6 GB

So on a regular consumer machine this is going to be wrong nearly half the time. Great! Let’s hope it’s only on the simple stuff and not the “how do I perform an emergency appendectomy”.

Honestly, just buy some books.

dvt 11 hours ago||
Or just.. download the books, and slap a search engine on top of them. It'll be like 10x smaller than the model. "Survival LLM" is absolutely a non-relevant use case.
saaaaaam 10 hours ago|||
When you’re living in an igloo trying to stay warm in the hollowed out belly of a cow having a few books around the place is probably more useful than some files on a laptop that ran out of battery just before it got morbidly damp. Plus you can burn them if you really need to.
drusepth 9 hours ago|||
On the other hand, the laptop struggling to power a good-enough LLM will probably be a great heat source for you in that igloo... for about 45 minutes.
saaaaaam 9 hours ago|||
As I said elsewhere, you can always burn the books! And eating a laptop is considerably crunchier and more fraught than chewing through some good old fashioned leather facings, horse glue and nice heavy 120gsm wove.
recursive 8 hours ago|||
On the other hand, if you know enough to build an igloo, you're probably going to be ok regardless.
octoberfranklin 7 hours ago|||
"cow in an igloo" sounds like something an LLM would hallucinate.
saaaaaam 1 hour ago||
Yes I slightly mangled that one. But I’m sure there is a survival technique that involves crawling into the body cavity of a hollowed out cow. You probably wouldn’t want to do that in an igloo though. I’m not even sure you could get a cow into an igloo. If standard issue humans are this flawed it’s hardly surprising that top flight LLMs get things so wrong sometimes.
taneq 10 hours ago||||
And/or install Kiwix and grab an offline copy of Wikipedia.
scotty79 8 hours ago|||
If you have AI model there it can make any search engine for you as per your needs.
arjie 10 hours ago|||
The advantage of a turn-by-turn flow (honestly the chat interface was genius) is that with a little human intervention you can get much better results out of even silly models. The model of choice is strange, though. Not a particularly good one.
Alpha3031 9 hours ago|||
People apparently like Granite for RAG specifically. I'm not aware of any evaluations with numbers though, so I'm not sure if it's a real difference or just vibes.
taneq 10 hours ago|||
Either it depends a lot on the model, or I’m bad at chat, or both, because in my experience once a chat starts going off the rails it’s pretty hard to correct the initial misconception. I find it works better to backtrack to just before the misconception and edit my previous response to head it off at the pass.
arjie 10 hours ago||
Definitely agreed that it's better to not have some text in the context than to have some that needs to be opposed. I suppose I meant steering prompts are a non-obvious innovation to LLM interaction.
bityard 11 hours ago|||
What is your favorite book on emergency appendectomies?
saaaaaam 10 hours ago||
We had a set called something like “How to do anything in an emergency” which had instructions for this and more. Alongside lots of creative uses of potassium permanganate.

I’m pretty sure it also told you how to butcher a sheep.

I used to be obsessed with it as a kid. The spectre of nuclear war and a three volume handbook on how to survive the impending apocalypse with nothing more than a plastic bucket, a packet of potassium permanganate, some charcoal and string. The late 80s and early 90s were a wild time to be a kid.

anigbrowl 9 hours ago|||
I have a bunch of military field manuals and survival guides, but they all implicitly presume the existence and contactability of civilization sooner or later. Realistically, some pocket computer(s) and solar charger(s) will store far more information, be far more portable, and give you more carrying capacity for things like medical supplies, rope, tools, and other hard-to-substitute items.
taneq 10 hours ago|||
Have you re-read it recently? Some of those books were fun to read but not really something to use as a field manual. Then again some of them were great! I had a book that started with explaining how a battery and a light globe worked, went through how to make a DC motor out of copper wire and a cork, and ended with a crystal radio and I think a radio homing beacon (the latter might have been in another book.)
saaaaaam 9 hours ago||
I have not, sadly. But I’m pretty sure I also had the book you mention. My brother and I made our own motor and many other things that would now be considered entirely unsuitable for 10 year olds to be doing. Copper sulfate crystals seem like a great idea until you have to explain why the playroom carpet has melted.
dofm 10 hours ago||
Granite is not great at any size. Wonder why they picked that.
saaaaaam 10 hours ago||
Given the whole thing reeks of vibe I don’t think anyone picked anything.
KingMachiavelli 1 hour ago||
212MB for MacOS and 25MB for Windows? Why are MacOS binaries so large? Is it typical for them to be 10x Windows binary size?

That said, I'm really looking forward to small and quick (latency wise) models are a reality. I can easily see a world where every keystroke, terminal command, etc. goes through a "autocorrect" type model. You could even blend natural language plus terminal program segments and the AI just infers what you intend. Either built-in or a second classifier model, determines if the autocorrect change needs human review first.

voxelghost 1 hour ago|
They bundle both python and ollama in that app bundle, and the ollama folder is something like 500MB unpacked , bundled python I think was 80MB.

Not sure what they do on the windows side.

cellsstudio 1 hour ago||
I'm not a doomsday prepper but man if you need to run an LLM locally during the apocalypse to figure out how long your food is going to last, I feel like you are in for a tough time.

This kind of stuff really feels like knowledge that probably shouldn't be offload to AI but rather learned and practiced. Again, I don't have a bunker in my backyard but seems like a weird use case.

fultonn 6 hours ago|
Cool project.

I have some property that doesn't really get cell reception in the summer, and even in the winter the reception is at-best spotty. I use granite and qwen together with a manually curated set of books, articles, etc. to get work done while disconnected. I tend to update the set of resources before leaving town because I'm generally intentionally disconnecting to focus on deep work. Building a workflow that makes that possible has helped me build out a setup that replaces a ton of my day-to-day anthropic/openai use even when I'm near fiber.

It is interesting how, even pre-llms, offline computers change the nature of a lot of activities. E.g., about once a year I'll walk do a random walk in the woods for a few days without paying much attention to maintaining a bearing. With maps and compasses it's a whole skill set to find your way back. With a phone and downloaded maps you just kinda press the power button and check your heading every hour or two.

The "survival" use-case is interesting. I fear a lot of the practical applications of that knowledge are either time-sensitive (e.g., RAG on a "Stop The Bleed" course won't help because by the time you learn the patient is dead) or require tools+skills that aren't easily improvised completely from scratch in high-stress situations (e.g., building shelter or even really simple stuff like building a fire when it's very cold out). And for other stuff common sense prevails (e.g., power out -> keep fridge closed).

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