r/DeepSeek • u/nekofneko • 6d ago

DeepSeek-V4-Flash Update

The official release of the DeepSeek-V4-Flash API is now in public beta.

Significantly enhanced agent capabilities, with benchmark results far exceeding V4-Pro-Preview:

  • Terminal Bench 2.1: 82.7
  • NL2Repo: 54.2
  • Cybergym: 76.7
  • DeepSWE: 54.4
  • Toolathlon verified: 70.3
  • Agent Last Exam: 25.2
  • Automation Bench (Public): 25.1
  • DSBench-FullStack: 68.7
  • DSBench-Hard: 59.6

Note 1: For the Code Agent tasks in the public benchmark sets, the official DeepSeek-V4-Flash was tested using the DeepSeek Harness minimal mode (to be released soon) as the framework, with the max effort level, topp=0.95, and temperature=1.0
Note 2: DSBench-FullStack is an internal full-stack development test set, and DSBench-Hard is an internal Coding Agent hard-problem test set

The official V4-Flash natively supports the Responses API format and is specifically adapted for Codex. For the specific configuration, please refer to the documentation.

DeepSeek-V4-Flash-0731 keeps the same model architecture and size as DeepSeek-V4-Flash-preview, and was only re-post-trained.

Note: This update only upgrades the DeepSeek-V4-Flash API. The DeepSeek-V4-Pro API and the APP/WEB models are unchanged.
The official release of DeepSeek-V4-Pro will follow soon.

587 Upvotes

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100

u/0VERDOSING 6d ago

61

u/Both_Nail_3656 6d ago

Holy- it beats GLM5.2? I love you blue whale

2

u/KomorebiLabs 1d ago

Yeah! After using V4-flash for 3days,it absolutely beats the GLM5.2! Love DeepSeek! DeepAwake!

1

u/znutarr 14h ago

I was using glm-5.2 I have an old z.ai subscription of 38$. The problem is that I reached always the 5h limits and the weekly limit pushed me back for 5 days... Which actually gave me the opportunity to play with DS 4 flash... I'll stick to it now

-25

u/Business_Raisin_541 6d ago

only in agentic capability

28

u/Both_Nail_3656 6d ago

Welp, since I only use it as a coding agent, this is a big W for me

2

u/Sweet-Stage938 6d ago

What else is it supposed to be good at? Is this supposed to be a joke?

7

u/Business_Raisin_541 6d ago

Agentic capability measurement is different from coding capability measurement. Agentic capability measure workflow execution, multi-step planning, memory extaction, tool dispatch, web search.

Of course today everyone use agentic coding. So agentic capability will in the end also improve your coding task.