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Posted by dnhkng 16 hours ago

DeepSeek-V4-Flash Update(api-docs.deepseek.com)
652 points | 307 commentspage 3
mordae 13 hours ago|
I was just using it when it landed. It started reasoning more extensively from nowhere and precision went up a lot. It also changed its prose style for the better. Looking forward to weights.
nickandbro 15 hours ago||
I wouldn't doubt GPT 4.6 Luna being in the top left quadrant's center on the Cost per Intelligence Index is not concerning for Liang Wenfeng. You have to remember DeepSeek v4 flash even though a bit cheaper, does not have vision abilities, which is a big draw for agentic tasks.

I admire DeepSeek's openness, but even they have been raising prices after their discounts.

minraws 15 hours ago||
They haven't raised prices though the plan was to increase it with peak hour usage for V4 Pro GA release, they didn't do that, so no price increases there I believe.

As for vision yeah it sucks but Luna is also 2x input and 1.5x output for 1M context...

That's around 0.4 in/1.8 out

DSv4 is wayyy cheaper.

And it's open now you have Luna at home if you have a decent set of GPUs you can run this on 2Sparks or one very expensive Mac or just like 6-8 5090s..

minraws 15 hours ago||
I know most folks can't afford it I am working on making it viable to rent shared hosting the biggest issue is data leak and prompt injection attacks with shared hosting. (Since the server owner connects to your main system via the coding agent)

I guess using a ZDR provider is good enough for now.

gpugreg 12 hours ago|||
According to the leaked call transcript, DeepSeek is working on vision for V4. Not sure when it will land though.
dudisubekti 15 hours ago|||
Gpt 5.6 Luna cache read is $0.02 per mtok

V4 flash cache read is $0.0028 per mtok

That's not "a bit cheaper", just saying

nickandbro 15 hours ago||
That's a good point. Yeah their caching input is insane.
ignoramous 9 hours ago||
DeepSeek v4 API rates are only matched by Xiaomi's MiMo v2.5 series. Quite similar in capabilities too (at least before today's update).
re-thc 14 hours ago||
> I wouldn't doubt GPT 4.6 Luna being in the top left quadrant's center on the Cost per Intelligence Index is not concerning for Liang Wenfeng.

The leaked interview has him saying it doesn't matter... as much as open source doesn't matter. There's enough in it for everyone right now and they aren't after everything.

Perspective: DeepSeek doesn't have enough infrastructure to serve their target customers already.

nickandbro 14 hours ago||
Can you post the link to the leaked interview? From what I understand he has been pretty tight lipped for a guy who has a larger stake worth more in his company than Dario does in Anthropic.
ifwinterco 10 hours ago|||
The culture is different, if you tried pulling any of the shit Sam and Dario do on a daily basis in China you'd get your wings clipped pretty quickly, much smarter to keep your head down as much as possible.

And maybe that's not a bad thing tbh because look at the state of the US right now

re-thc 8 hours ago||
> The culture is different

That's partly. I'd say the other part is it's an open secret they have "illegal" Nvidia GPUs and other "secrets". There's a common understanding not talk about these things because it'd hurt everyone collectively.

Rzor 14 hours ago|||
https://www.techflowpost.com/en-US/article/32744
amelius 11 hours ago||
Note: if you are having success with a model, then please post what you are using it for. Writing HTML/CSS is very different from writing Rust/C++ or doing maths.
fdsjgfklsfd 6 hours ago||
I use DeepSeek V4 Flash (before this update) for most things:

- OpenCode for codebase editing: python scientific computing and LLM projects

- Open Interpreter Classic (python version) for Swiss army knife terminal replacement one-off task type stuff.

f311a 11 hours ago|||
I do Python, Go and Rust. Go works the best, I would say Python is worse than Go.

Rust works perfectly fine, but when I use Rust, I usually pay closer attention to performance, so I have to guide it a bit, to improve cache locality, use simd, avoid unnecessary allocations and so on. Terra has the same issues with Rust. If you always prompt models to achieve the best performance, the code is usually no the one that I want, they optimize unnecessary/cold parts or blindly optimize stuff where compiler takes care of the optimizations already.

See my other comment for more information on how I work with it. In short, keep the changes under 1k lines, context under 120k (ask it to use subagents), drive the architecture yourself.

sparse-Matrix 11 hours ago|||
I've been having better-than-most performance using qwen3.6 to write python/flask.

I tried using it to generate some rust code yesterday, and it generated much code but only ever came within 1 error of a testable build. The 4th or 5th full rewrite is sitting in the buffer right now.

I'm currently looking to up my game with Bottlecap AI's return of qwen3.6, 'thinking cap'.

Alleged to be twice as fast and superior at coding over extended sessions (vs. 3.6).

We'll soon see.

ilaksh 11 hours ago||
You should specify which model size and quant because there are many of both.
bel8 4 hours ago|||
flash for code:

c#, TypeScript, PHP, SQL, CSS, HTML.

also features, tests, fixes, refactoring and planning.

it's super fast, smart and dirt cheap.

dandaka 9 hours ago||
Text classification, structured data extraction, rewrite
Reubend 15 hours ago||
They're always very understated in their update descriptions. This is actually a HUGE improvement in the model's capabilities rather than just a small tweak.
f6v 13 hours ago||
I'm thinking of using ChatGPT for making plans and V4-Flash for execution. Does anyone have good advice on pairing different models?
davidjade 6 hours ago||
I stumbled into this same workflow idea. I hadn't really used anything other that Chat GPT Sol (medium) and when I wanted to start using code agents, I just asked GPT how to start. This evolved into having GPT do the brainstorming and writing the initial prompt for a project feature/change to hand over to Codex working in Sol light mode. These prompts where often a couple pages long as they had a lot of the architecture details worked out already. Codex would then come up with a plan and I'd take that back to GPT to review. GPT would make some suggestions, which I'd throw back to the agent and off it went.

I got super great results working this way. Maybe there is a better way to integrate the two modes though. But my first real project was end-to-end 100% working correctly from the first run - about 10,000 lines (including tests) of greenfield code. I did have it work in manageable chunks that I could easily review - not one-shotting the whole thing.

Now I'm thinking about plugging Deepseek into Codex to be the coding model and see how it goes.

embedding-shape 13 hours ago|||
Pairing non-APIs with APIs tend to be a hassle, and risky, as usually that breaks the ToC. I guess easiest for you to test if it's worth using the OpenAI API, is to manually copy-paste responses between wherever you run V4-Flash and the ChatGPT UI. What I've done in the past is basically .zip up the entire project directory, ignoring files from .gitignore, then asking ChatGPT Pro to inspect that and come up with a plan, then you paste that to where you have V4-Flash. Basically how we did "vibe pair programming" before the TUI agent harnesses appeared in the ecosystem :)
yuzuquat 13 hours ago|||
reminds me back in the day when we used to do version control with google drive. you generally don't need to do this anymore i don't think. it should be fairly trivial to open the codex cli in the project directory, ask it to do some analysis and planning -> save to md. then opencode with deepseek to read that md and start implementing. consider that some cross-model subagent workflows already exist: i use claude/fable to plan and there are openai plugins to directly spin up codex subagents. this latter approach gives claude/fable more directly control to babysit the codex agents whereas the former is more of a clearcut handoff
embedding-shape 12 hours ago||
That approach won't give you access to the "Pro Mode" nor "Deep Research" though, which if you're paying for a Pro subscription already, "Pro Mode" is probably the top-top when it comes to "extensively researched answers & plans" across the entire ecosystem. That said, I do ask it to produce a .md plan that later is used with agents :)
f6v 10 hours ago|||
[dead]
cthulberg 12 hours ago||
https://github.com/obra/superpowers

I use Opus/Sol with for /brainstorming, deepseek (on Pi) for /subagent-driven-development

I love it, the docs are easily editable and when I'm ready Deepseek is faster/cheaper then everything on my coding plans.

leobg 12 hours ago||
Source reads like Tony Robbins for LLMs:

  Excuse
  "Too simple to test"
  
  Reality
  Simple code breaks. Test takes 30 seconds.
ilaksh 11 hours ago||
I wonder when the antirez/ds4 group will have an update to their high accuracy 2 bit quant.

Although it's funny that I am thinking about that at all because I have a 2060 :P . My local inference is playing with Gemma 4 E2B and MiniCPM 5 1B.

jtbaker 2 hours ago||
Looks like a couple of people are already on it: https://github.com/antirez/ds4/issues/635
throwdbaaway 10 hours ago||
Objectively speaking, the 2 bit quant from antirez has very low accuracy. Meanwhile, his 4 bit quant does have decent accuracy, but is a bit pointless by being bigger than the full precision MXFP4 quant. Anyway, they all work fine in practice.
Tepix 11 hours ago||
Sounds like a big improvement.

No mention of weights, just API. When will the updated weights be released?

fdsjgfklsfd 6 hours ago|
Was already released before your comment: https://huggingface.co/deepseek-ai/DeepSeek-V4-Flash-0731
miyuru 14 hours ago||
Judging by the openrouter leaderboard ranking for today, it looks like Dv4F us more popular than mimov2.5.

https://openrouter.ai/rankings?view=day#leaderboard-table

These days cost per task is more important, and SOTA models have become expensive.

benjiro29 11 hours ago|
MiMo, the overlooked sidekick to the hero. Will be interesting to see what Xiaomi bring to the table.

These massive jumps in cheap models, is really great times!

KronisLV 15 hours ago||
Wonder how good the proper version of V4 Pro will be.

I'm still considering pulling the trigger on the annual subscription of Kimi for K3 but it's sometimes slower than I'd like (at least when compared to Anthropic) even on their Vivace plan, and the token limits on the GLM Coding subscription for GLM 5.2 were too easy to hit.

vladukha 14 hours ago|
Where do you guys get deepseek? I'm hearing a lot of good reviews and want to try it with my pi config. from the deeepseek themselves, openrouter, or anywhere else? does it make a difference? [edit]: whoa it is really fast. will take some time to evaluate quality thou
u8080 12 hours ago||
Directly here: https://platform.deepseek.com/ Easy top-up and pay as you go. Availability and speed are very good and it is the cheaper option.
psibi 13 hours ago|||
I've been using DeepSeek directly. I've heard from colleagues that using it via OpenRouter is slower, but I'm not so sure about that.
ticoombs 13 hours ago|||
> does it make a difference

Probably not.

But Opencode-Go is a great solution for those who don't want to pay DeepSeek directly (or can't due to reasons)

Selfish referral code: https://opencode.ai/go?ref=R1AJZT4VBX

embedding-shape 13 hours ago|||
For hosted APIs, it's a lot cheaper to use their own infra, caching seems a hell of a lot better there compared to OpenRouter, and indeed the tok/s seems higher. They also have peak/off-peak pricing, so if you can hold off with your request, you get a pretty big discount.

Otherwise, if you're trying to run it locally, even really low quantizations like DeepSeek-V4-Flash-IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8-chat-v2-imatrix seem to actually not be so dumb compared to smaller models with same quantization, might be worth a try if you're sitting on a lot of RAM/VRAM yet not industry-scale amount :)

chronogram 11 hours ago|||
I use it directly: https://platform.deepseek.com/usage

3rd party providers on OpenRouter can be cheaper but it's already so cheap.

kzrdude 12 hours ago|||
Opencode-go gives you $60 worth of DS V4 api usage for $10 per month. Right now I think it's hard to exhaust that when using flash exclusively, and plain API use might even be cheaper! Anyway, for DS usage it's a good deal.
gpugreg 11 hours ago|||
To add to this, the $60 only applies to DeepSeek-V4-Flash and a few other models. For DeepSeek-V4-Pro, the amount is $15.

https://opencode.ai/docs/go/#usage-limits

Previously, OpenCode Go had higher API prices for some models, but now they lowered the API price and simultaneously reduced the allowance.

kzrdude 11 hours ago||
Thanks. These things change day by day I guess, AI is just moving fast (and I'm on vacation).

GPT 5.6 Luna is a new model in Go since I last checked, for example.

Lalabadie 11 hours ago|||
Opencode also have a ZDR (zero data retention) deal with them – if I recall correctly, that's not something you can enable as an individual DeepSeek subscriber.
anon373839 11 hours ago|||
I really like OpenCode - BUT: there is a loophole the size of Portugal in that ZDR language. All they say is that their providers follow a ZDR policy. I haven’t found anything promising that OpenCode themselves don’t retain Go usage data. Something to be mindful of.
gpugreg 11 hours ago|||
Unfortunately, all mentions of ZDR have silently been removed from the OpenCode Go page today.
kzrdude 11 hours ago||
Thanks, any update here is important. I use them because of good data policies..

I still find this today:

> The plan is designed primarily for international users and provides stable global access. Your data will not be used for model training.

gpugreg 8 hours ago|||
dax (coauthor) recently tweeted https://xcancel.com/thdxr/status/2083178051052155182

> because we added the new deepseek which we do not yet have a ZDR with we cannot blanket say we offer ZDR

I wonder how the website can make the statement that data will not be used for training.

Tepix 9 hours ago|||
Do they do other things with the data, like selling it?
lucianmarin 10 hours ago|||
OpenCode harness gets the most out of DS V4 Flash model. You can implement any coding task, fast and cheap.
Gigachad 13 hours ago|||
I used it through openrouter. Plugged in to the vs code copilot bring your own key thing.

Played around for a few hours and used up 80 cents of tokens.

Lalabadie 11 hours ago||
Anecdotal data from my own tests: allow only one provider if you want good cache usage on OR. 80 cents is probably 4x the price you should have paid.

Providers' cache hit stats are available to consult, and only 1-2 of them behave properly if I remember correctly, zero if you request providers that don't store and train on sessions.

darkest_ruby 12 hours ago||
Openrouter
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