Model Comparison

GPT 5.6 Terra vs GPT 6.1 Terra

GPT 5.6 Terra ranks #13 on the AI IQ leaderboard with an estimated IQ of 130, while GPT 6.1 Terra ranks #11 on the AI IQ leaderboard with an estimated IQ of 132. The table below puts the two models side by side across the seven capability dimensions, emotional reasoning, cost, speed, and context window.

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
GPT 5.6 TerraOpenAIGPT 6.1 TerraOpenAI
Rank#13#11
IQ130132
Abstract Reasoning119123
Mathematical Reasoning140140
Academic Reasoning130134
Programmatic Reasoning145146
Computer Use127127
Reliability120126
Knowledge Work128131
Emotional Reasoning117—
Effective Cost / 1M Tokens$13.75$5.08
Sticker Price / 1M I/O Tokens$14.00$6.00
Speed135 tok/s91 tok/s
Context Window1M1.1M
Released2026-07-092026-10-26
Open WeightsNoNo