DeepSeek V4.1-Flash-1017

DeepSeek shipped an updated Flash model in its app and API and as open weights, aimed at coding and agent tasks.

DeepSeek's own benchmarks show gains over the previous Flash and some larger rivals on coding and agent tests at a much lower cost per task; independent results are not out yet. DeepSeek also opened its in-house Search and Fetch APIs to developers.

Status

Released

Date

Oct 17, 2026

Maker

DeepSeek

Type

Software

Price

Open weights; also in DeepSeek's app and API

Categories

AI

Sources

• Hugging Face
• The Decoder

Launch dates can change. Check the sources for the latest. Last reviewed Oct 17, 2026.