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Model Comparison

Deepseek V4 Flash vs Opus 5.5

Deepseek V4 Flash ranks #42 on the AI IQ leaderboard with an estimated IQ of 121, while Opus 5.5 ranks #2 on the AI IQ leaderboard with an estimated IQ of 141. 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 →Opus 5.5 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 FlashDeepSeekOpus 5.5Anthropic
Rank#42#2
IQ121141
Abstract Reasoning103132
Mathematical Reasoning131149
Academic Reasoning128138
Programmatic Reasoning127154
Computer Use122148
Reliability114133
Knowledge Work122134
Emotional Reasoning113—
Effective Cost / 1M Tokens$1.69$35.73
Sticker Price / 1M I/O Tokens$1.76$24.00
Speed142 tok/s98 tok/s
Context Window1M1M
Released2026-04-242026-09-22
Open WeightsYesNo
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