DeepSeek-V4.1-Flash-1017: what's new (October 17, 2026)
DeepSeek-V4.1-Flash-1017 is live on the DeepSeek website, app, and API, with weights on Hugging Face and ModelScope. Search and Fetch are listed at $0.75 per 1,000 calls, and the page says billing for those calls through DeepSeek Harness, Claude Code, and Codex starts October 31, 2026 at 16:00 UTC.
Who it is for
Readers following a public model or product announcement. AIToolStack does not score this as its own tool.