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DeepSeek-V4 ​

DeepSeek-V4 ​ The DeepSeek API now supports V4-Pro and V4-Flash, available via both the OpenAI ChatCompletions interface and the Anthropic interface. To access the new models, the base_url remains unchanged, and the model parameter should be set to deepseek-v4-pro or deepseek-v4-flash . The two legacy API model names, deepseek-chat and deepseek-reasoner , will be discontinued in three months (2026-07-24). During the current period, these two model names point to the non-thinking mode and thinking mode of deepseek-v4-flash , respectively. For more details, please refer to this documentation .

Action requiredReview affected integrations and migrate before the documented retirement boundary.
DeepSeekcompanyAnthropiccompanyDeepSeekproductDeepSeek V4-FlashmodelOpenAIcompany

Evidence chain

DeepSeek API updatesOfficial · official

DeepSeek-V4 ​ The DeepSeek API now supports V4-Pro and V4-Flash, available via both the OpenAI ChatCompletions interface and the Anthropic interface. To access the new models, the base_url remains unchanged, and the model parameter should be set to deepseek-v4-pro or deepseek-v4-flash . The two legacy API model names, deepseek-chat and deepseek-reasoner , will be discontinued in three months (2026-07-24). During the current period, these two model names point to the non-thinking mode and thinking mode of deepseek-v4-flash , respectively. For more details, please refer to this documentation .

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