DeepSeek V4.1 Flash 1017
DeepSeek V4.1 Flash 1017 is an open-weights AI model from DeepSeek with an index score of 176 (GPT-4 = 100), rank 15 of 207.
176160–192Index score#15 of 207 models
$0.30/ $1.2Price per million tokensinput / output · via OpenRouter
1.05MContext windowtokens it reads at once
17 Oct 2026Released10 days ago
Where it sitson the frontier
GPT-5.5 reached this score 6 months earlier.
Test resultsby area · tick = best by any model
Reasoning & knowledgeevidence
Mathsevidence
Codingevidence
Agentsevidence
Professional workevidence
Novel problemsevidence
Long tasksno evidence yet
Third-party results only, at the model’s best standard setting. Hover a bar for who ran it.
What others sayrank on 2 leaderboards
The Model Indexthird-party tests, our method#15of 207 · 176
Artificial Analysis Intelligence Indexoverall capability across ten evaluations#15of 216 · 45Best attop three among current models
Not in the top three among current models on any category we track.
Where to use itprices checked 27 Oct 2026
API providers 8 of 30 · per 1M tokens, in / out
Run it yourself
Official weightsdeepseek-ai/DeepSeek-V4.1-Flash-1017↗Host prices from OpenRouter; going direct can differ.
Facts and sources
Released17 Oct 2026
Announcementnot linked yet
Release entry–
Scored asDeepSeek V4.1 Flash 1017
Output speed169 tokens/s
Hugging Facedeepseek-ai/DeepSeek-V4.1-Flash-1017 ↗
