Modelpeers

DeepSeek API changelog

Every change to DeepSeek API that Modelpeers has recorded, newest first, each with the source it came from. The record starts Jul 31, 2026.

All (6)Releases (1)Breaking changes (1)Prices/limits (3)Security (1)

July 2026

V4-Flash and DeepSeek API

2 products from DeepSeek

New release

DeepSeek-V4-Flash official API release enters public beta

DeepSeek re-post-trained V4-Flash as DeepSeek-V4-Flash-0731 with much stronger agent benchmarks than V4-Pro-Preview and native Responses API support for Codex. The deepseek-v4-flash model name now serves it. The V4-Pro API and the app and web models were unchanged.

Who is affected:
Apps calling deepseek-v4-flash.
What to do:
Retest prompts on deepseek-v4-flash, since the model behind the name changed.

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