DeepSeek Releases V4-Flash: Major Agent Upgrades, Now Open-Source

victormustar · x · 2026-07-31

DeepSeek officially announced that the DeepSeek-V4-Flash API is now in public beta. The company stated that this version features massive upgrades in Agent capabilities, with benchmark scores far surpassing the V4-Pro-Preview.

Third-party tests show the model scored 40 on CyberGym, 50 on DeepSWE, and 20 on Terminal Bench 2.1. The model is open-weight under the MIT license, natively supports the Responses API format, and is fully adapted for Codex.

Related event: DeepSeek-V4-Flash GA Public Beta: Big Agent Capability Leap(31 posts)→

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