AI Index

DeepSeek releases DeepSeek-V4.1-Flash

DeepSeek Release

DeepSeek released DeepSeek-V4.1-Flash, its smallest new-architecture model with native multimodal vision, callable as deepseek-flash. The retired names deepseek-v4-flash and deepseek-v4-flash-vision-exp route to it for now. V4 Pro continues after 14 September 2026 with unchanged billing, and API prices were reduced with the release.

Read on api-docs.deepseek.com

Source: DeepSeek API change log, checked Sep 28, 2026. Summarized from the provider’s announcement.