Model Comparison
Gemini 3.1 Flash Lite vs Mercury 2.5
Gemini 3.1 Flash Lite ranks #102 on the AI IQ leaderboard with an estimated IQ of 104, while Mercury 2.5 ranks #126 on the AI IQ leaderboard with an estimated IQ of 100. 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
| Gemini 3.1 Flash LiteGoogle | Mercury 2.5US (Other) | |
|---|---|---|
| Rank | #102 | #126 |
| IQ | 104 | 100 |
| Abstract Reasoning | 93 | 91 |
| Mathematical Reasoning | 105 | 96 |
| Academic Reasoning | 116 | 107 |
| Programmatic Reasoning | 92 | 99 |
| Computer Use | 108 | 95 |
| Reliability | 112 | 110 |
| Knowledge Work | 101 | 99 |
| Emotional Reasoning | — | — |
| Effective Cost / 1M Tokens | $0.43 | $0.43 |
| Sticker Price / 1M I/O Tokens | $1.75 | $0.95 |
| Speed | 366 tok/s | 739 tok/s |
| Context Window | 1M | 260K |
| Released | 2026-03-03 | 2026-09-08 |
| Open Weights | No | No |
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