DeepSeek-V4.1-Flash-1017 beats larger models on DeepSeek's own agent benchmarks at lower task cost

Deepseek V4.1 Flash 1017 beats larger rivals in agentic tasks while once again massively cutting per-task costs

DeepSeek released DeepSeek-V4.1-Flash-1017, which beats its predecessor and some larger competitors on several of DeepSeek's own coding and agent benchmarks. It is available through the website, app and API, and the model weights are open.

Why it matters: DeepSeek reports cutting cost per task from about $0.50 to under $0.20 on its own coding benchmark while scoring higher accuracy than the previous version.