Model Comparison
Agnes 2.5 Pro Alpha vs Fable 5.1
Agnes 2.5 Pro Alpha ranks #129 on the AI IQ leaderboard with an estimated IQ of 96, while Fable 5.1 ranks #4 on the AI IQ leaderboard with an estimated IQ of 138. 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
| Agnes 2.5 Pro AlphaWorld (Other) | Fable 5.1Anthropic | |
|---|---|---|
| Rank | #129 | #4 |
| IQ | 96 | 138 |
| Abstract Reasoning | 79 | 124 |
| Mathematical Reasoning | 88 | 149 |
| Academic Reasoning | 126 | 137 |
| Programmatic Reasoning | 91 | 147 |
| Computer Use | 93 | 142 |
| Reliability | 106 | 136 |
| Knowledge Work | 90 | 133 |
| Emotional Reasoning | — | — |
| Effective Cost / 1M Tokens | — | $89.32 |
| Sticker Price / 1M I/O Tokens | — | $60.00 |
| Speed | 132 tok/s | 61 tok/s |
| Context Window | 1M | 1M |
| Released | 2026-07-24 | 2026-09-01 |
| Open Weights | Yes | No |
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