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MULTIMODAL MODEL · Oct 17, 2026

DeepSeek-V4.1-Flash-1017

By DeepSeek 深度求索

DeepSeek-V4.1-Flash-1017 by DeepSeek: released Oct 17, 2026; 1M-token context; open weights under MIT; API available outside China; list price deepseek-flash USD/1M: peak $0.30 in/$1.20 out/$0.006 cache-hit; off-peak $0.15 in/$0.60 out/$0.003 cache-hit; hours per official page..

Specifications

Released
Oct 17, 2026 · verified Oct 28, 2026 · Evidence
Outside China
Global API · verified Oct 28, 2026 · Evidence
Open weights
Yes · verified Oct 28, 2026 · Evidence
License
MIT · verified Oct 28, 2026 · Evidence
Claim status
Company-reported · verified Oct 28, 2026 · Evidence
Parameters
Not verified yet
Context window
1,000,000 tokens · verified Oct 28, 2026 · Evidence
List price
deepseek-flash USD/1M: peak $0.30 in/$1.20 out/$0.006 cache-hit; off-peak $0.15 in/$0.60 out/$0.003 cache-hit; hours per official page. · verified Oct 28, 2026 · Evidence
Hugging Face
deepseek-ai/DeepSeek-V4.1-Flash-1017 · verified Oct 28, 2026

Release timeline

  1. DeepSeek released DeepSeek-V4.1-Flash-1017 on Hugging Face