DeepSeek-V4.1-Flash changelog

DeepSeek-V4.1-Flash-1017 update released with open weights

DeepSeek released DeepSeek-V4.1-Flash-1017 on its website, app and API with stronger benchmarks, faster task completion and shorter outputs, and published the weights on Hugging Face. deepseek-flash now serves this version.

Who is affected:

Apps calling deepseek-flash, which now get the 1017 version.

What to do:

Retest prompts that depend on output length or style.

DeepSeek-V4.1-Flash in public preview on Gemini Enterprise Agent Platform

DeepSeek-V4.1-Flash is available as a fully managed model in Model Garden on Gemini Enterprise Agent Platform, in public preview, with text and image input and a context window of up to 1M tokens.

DeepSeek-V4.1-Flash replaces V4-Flash, V4-Flash retired

DeepSeek released V4.1-Flash with native vision under the model name deepseek-flash, and retired V4-Flash and V4-Flash-Vision-Exp. The old names temporarily route to V4.1-Flash.

Who is affected:

Apps calling deepseek-v4-flash or deepseek-v4-flash-vision-exp.

Action needed:

Set the model name to deepseek-flash.