# DeepSeek-V4-Flash Official API Enters Public Beta

- Category: Flash (快讯)
- Published: 2026-07-31T11:54:00.000Z
- Source date: 2026-07-31
- HTML: https://www.88z.ai/en/news/flash-20260731-59ceb5606287e863
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DeepSeek has launched the public beta for the official DeepSeek-V4-Flash API. This release features significantly enhanced agent capabilities, outperforms V4-Pro-Preview in benchmarks, natively supports the Responses API format, and is optimized for Codex, while maintaining the original model structure with only post-training updates.

## At a glance

- Agent capabilities are significantly enhanced, with benchmark scores far exceeding V4-Pro-Preview
- Natively supports Responses API and is optimized for Codex, while keeping the model structure unchanged

## The update

DeepSeek has officially announced the public beta launch of the DeepSeek-V4-Flash official API through an update to its API documentation release logs. The core highlight of this update is a significant enhancement in agent capabilities, with scores in multiple benchmark tests substantially surpassing the previous V4-Pro-Preview version. In terms of technical compatibility, the official release natively supports the Responses API format and has been specifically optimized and adapted for Codex to provide a smoother development experience. Notably, the underlying model structure of DeepSeek-V4-Flash remains identical to the Preview version, with no architectural changes made. The primary improvements stem from a renewed post-training process, achieving a performance leap while maintaining structural stability.

## Sources

- [IT之家](https://www.ithome.com/0/984/116.htm) (2026-07-31)

This article is an AI-assisted synthesis by 88Z AI based on the public sources below. Product claims and availability are attributed to their publishers. It does not represent independent testing or first-hand reporting.