1LLM1
#10DeepSeekOpen weights

DeepSeek V4.1 Flash

DeepSeek V4.1 Flash scores 39.5 on the Artificial Analysis Intelligence Index (highest reasoning-effort setting). List price $0.3 input / $1.2 output per 1M tokens.

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Overall
74.1
Input $/M
$0.30
Output $/M
$1.20
Context
1M
Released
Sep 10, 2026
Updated
Oct 3, 2026

Category scores

Overall rank history

Weekly snapshots. Lower is better.

Strengths

    Weaknesses