Corrected: DeepSeek-V4-Pro GA Release

DeepSeekNew modelConfirmed

Correction: Earlier copy said V4-Pro API requests now route to V4.1-Flash; DeepSeek later said V4-Pro API service continues after September 14 with billing unchanged.

DeepSeek released V4-Pro with adjustable reasoning effort and native Responses API support, including a Codex setup path.

Who can use it: The original release offered app, web, and API access. DeepSeek's change log says V4-Pro API service continues after September 14, 2026, with billing unchanged.
When: Announced August 13. A planned September 14 switch of V4-Pro API requests to V4.1-Flash was later reversed; DeepSeek says it will give notice of any change.

DeepSeek official announcement · DeepSeek API change log Announced 2026-08-13 · date only

Read the official announcement for access details. Availability can depend on your plan, region or workplace settings.

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