DeepSeek releases DeepSeek-V4.1-Flash-1017 and opens Search APIs
The model is live on DeepSeek's site, app, API, Hugging Face, and ModelScope, alongside public Search and Fetch APIs priced at $0.75 per 1,000 calls.
- DeepSeek-V4.1-Flash-1017 uses reinforcement learning with self-feedback targeted at project development like game creation and 3D modeling.
- Search and Fetch API calls via server-side tools in DeepSeek Harness, Claude Code, and Codex are free for API users until October 31, 2026.
- The model is optimized for DeepSeek Harness v0.2.1-rc.1 or later, Tencent CodeBuddy, and WorkBuddy.
Developers get an updated open-weights Flash model with faster outputs and direct access to DeepSeek's search engine endpoints.
