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Posted by dnhkng 15 hours ago

DeepSeek-V4-Flash Update(api-docs.deepseek.com)
638 points | 305 commentspage 2
baalimago 13 hours ago|
Very promising. So it will both keep the speed and reduced price, yet exceed performance of the quite sufficient deepseek-v4-pro?

Should be extending the lead in intelligence/cost index, as deepseek-v4-flash already were the most price efficient model, which now becomes even better. Although, in the deepseek APIs, the cost is leaking all information about codebases to China.

ilaksh 10 hours ago|
Supposedly better than GLM 5.2 according to at least one benchmark.
wg0 3 hours ago||
Don't know about the bench marks but I am getting Opus 4.7 level performance at fraction of cost with DeepSeek V4 Flash set to high. It is a reliable workhorse.
sim04ful 12 hours ago||
Why didn't they increment the version as atleast a patch update
bel8 3 hours ago||
So whoever is using DeepSeek V4 flash gets a massive upgrade without having to change any config.
crvdgc 7 hours ago|||
My guess would be the version number tracks the architecture change, not the weight change.
rubslopes 9 hours ago|||
I was also so annoyed by this. It makes communication all around difficult. Why don't they simply call it 4.1 flash?
kzrdude 11 hours ago|||
Yes, and even if they seem to have updated endpoints in place they should assign the service a version number.
markasoftware 12 hours ago||
They want to be the next Google it seems
namuol 3 hours ago||
Can someone please explain how these models aren’t just fine tuned for benchmarks? I’m not plugged in to this space much but it seems like such an obvious problem…
sroerick 3 hours ago|
They definitely are - but also people are using them pretty extensively for work. So ultimately you can't really fake "is it good". But there's no real measurements of that when a model is released, so we are stuck with benchmarks.
namuol 1 hour ago||
I will continue to ignore the benchmarks.
yewenjie 11 hours ago||
What was preventing them from calling it v4.1-Flash to distinguish it better?
lionkor 9 hours ago||
Sounds like it'll replace v4-flash, v4.1 would be nice to keep both available. On the other hand, it's nice to just get an improvement on anything that asks for "deepseek-v4-flash" without having to change the model string.
krapht 8 hours ago||
I think that's backwards. Anything that changes the performance of a model deserves a minor version bump. A new model has to be qualified before being pushed to production; but we don't get the choice here, just cross your fingers there are no regressions at all on all possible tasks the model might be asked to do.
xbmcuser 1 hour ago|||
its an open source model if it is important enough that you have to worry about a new version breaking something then why the fuck was that not running on your own servers this is not an Anthropic or OpenAI closed model that you only have access through an api
halJordan 5 hours ago||||
That's on you for using a preview/beta. It was properly qualified when it was released. No one complains when ios goes from beta to release; even though it will be ios 27 beta -> ios 27 next month
lionkor 8 hours ago|||
I should have worded it differently. Having a model selector as `string` seems like the wrong choice. At the very least, I should be able to select 4.X, like how we select dependencies, so people who rely on specific behavior can pin to 4.0 and I can say version >= 4 if I don't care.
halJordan 5 hours ago||
It went from "ds v4 preview" to "ds v4". That's enough of a distinction.
throwa356262 8 hours ago||
Gentlemen, start your DGX Sparks

https://huggingface.co/deepseek-ai/DeepSeek-V4-Flash-0731

troglodytetrain 2 hours ago||
This is very exciting, my own niche micro-saas has already been able to make heavy use of DeepSeek-V4-Flash for my use case, I am looking forward to seeing how performance improves.
alecsm 8 hours ago||
I've been using DeepSeek Pro for a while and Flash only for certain dumb tasks where I only need the speed of a LLM and not big brains.

I find the newest OpenAI and Anthropic models to be way better for big tasks that require many decisions but I don't like that anyway because I lose track of what's being done.

Knowing what I want for every prompt makes DeepSeek Pro the best LLM for me. It allows me to work relatively fast at a very low price.

sqemo 11 hours ago||
DeepSeek is great for tasks and software I already know well. Even if it gets something wrong, I can usually verify it myself. But when I'm working with a programming language I'm not familiar with, I prefer using Codex or Claude.
k__ 11 hours ago|
Yeah, it needs quite some hand holding.

I didn't do much agent coding and had a mix experience.

1. It would build something that was in the spirit of what I wanted, but unusable in practice.

2. It would build something quite useful, but only the public APIs were nice, the deeper code layers would get more and more convoluted.

3. It would built what I wanted and it would have okay-ish code.

However, for 3. I also had to add a custom AGENTS.md, many more code example, extra repos as subtrees, and review any code that had new concepts.

Much more work, but still much less than typing it all by hand.

arjie 14 hours ago|
Oh my goodness what an update. I need these weights. It's an incredible model for the size. The improved tool calling etc. should be able to make my harness way simpler. This runs at mega-speed on prosumer hardware (2x RTX Pro 6000).
amunozo 1 hour ago|
How many tok/s are we talking about?
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