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Model Comparison

Deepseek V4 Flash vs Deepseek V4.1 Flash

Deepseek V4 Flash ranks #40 on the AI IQ leaderboard with an estimated IQ of 121, while Deepseek V4.1 Flash ranks #21 on the AI IQ leaderboard with an estimated IQ of 126. The table below puts the two models side by side across the seven capability dimensions, emotional reasoning, cost, speed, and context window.

Deepseek V4 Flash profile →Deepseek V4.1 Flash profile →
Where They Sit on the IQ Bell Curve
Both models highlighted on the standard normal IQ distribution of every tracked model
IQ Dimensions Head to Head
The seven scored Composite IQ dimensions, side by side
Domains Head to Head
Applied domain composite scores where at least one model is measured
Deepseek V4 FlashDeepSeekDeepseek V4.1 FlashDeepSeek
Rank#40#21
IQ121126
Abstract Reasoning103115
Mathematical Reasoning131131
Academic Reasoning128130
Programmatic Reasoning127135
Computer Use123127
Reliability114118
Knowledge Work122125
Emotional Reasoning113—
Effective Cost / 1M Tokens$1.68$1.85
Sticker Price / 1M I/O Tokens$1.76$1.50
Speed152 tok/s209 tok/s
Context Window1M1M
Released2026-04-242026-09-10
Open WeightsYesYes
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