deepseek released v4.1-flash-1017 on oct 17, on its site, app and api, and opened the weights. search and fetch are 75 cents per 1,000 calls each. calls through deepseek harness, claude code and codex stay free until oct 31 at 16:00 utc.
DeepSeek-V4.1-Flash-1017: Wish-Driven Programming Made Real | DeepSeek API Docs
api-docs.deepseek.com