DeepSeek V4.1 Flash

DeepSeek

This model has not been scored by LMArena yet, so it is not ranked here; pricing and context length sync daily.

Organization
DeepSeek
Arena score
LMArena rank
Input price ($/1M tokens)
$0.3
Output price ($/1M tokens)
$1.20
Context length
1.05M
Listed
2026-09-10
License
Open weights
Yes
Intelligence index(max)
39.5
Coding index
Output speed (tokens/s)
226.5
Time to first token (s)
0.87

FAQ

What rank is DeepSeek V4.1 Flash right now?

DeepSeek V4.1 Flash has not been scored by LMArena yet, so it is not ranked here.

What does DeepSeek V4.1 Flash cost via API?

Input $0.3 / output $1.2 per 1M tokens (OpenRouter quotes; may change with official pricing).

Is DeepSeek V4.1 Flash open source? Can it be self-hosted?

DeepSeek V4.1 Flash is an open-weights model (license: —); you can download the weights and self-host.

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