DeepSeek has officially launched the public beta of version V4-Flash-0731. Through post-training and Agent framework optimizations, DeepSWE benchmark scores have improved from 7.3 to 54.4, Cybergym scores have doubled to 76.7, and performance on certain hard benchmarks now approaches Claude Opus 4.8. This new version does not increase parameters and maintains the same pricing. It natively supports the Responses API, and existing users’ APIs will automatically switch to this version. Currently, only the Flash API has been updated; the official V4 Pro version is still under development.
DeepSeek V4-Flash-0731 Public Beta Launches with Improved Code Agent Performance
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Summary
DeepSeek V4-Flash-0731 is now in public beta, with improved performance on the DeepSWE leaderboard, rising from 7.3 to 54.4. The Cybergym score has doubled to 76.7. The model supports the Responses API and maintains the same parameter count and pricing. Existing users will automatically gain access to the new version. Only the Flash API is updated at this time, while V4 Pro is still under development. On-chain data shows increasing interest in new token listings as developers adopt the latest tools.
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