Model Comparison
Fable 5.1 vs Solar Open2 250b
Fable 5.1 ranks #4 on the AI IQ leaderboard with an estimated IQ of 138, while Solar Open2 250b ranks #107 on the AI IQ leaderboard with an estimated IQ of 102. 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
| Fable 5.1Anthropic | Solar Open2 250bWorld (Other) | |
|---|---|---|
| Rank | #4 | #107 |
| IQ | 138 | 102 |
| Abstract Reasoning | 124 | 88 |
| Mathematical Reasoning | 149 | 97 |
| Academic Reasoning | 137 | 124 |
| Programmatic Reasoning | 147 | 92 |
| Computer Use | 142 | 104 |
| Reliability | 136 | 114 |
| Knowledge Work | 133 | 97 |
| Emotional Reasoning | — | — |
| Effective Cost / 1M Tokens | $89.32 | — |
| Sticker Price / 1M I/O Tokens | $60.00 | — |
| Speed | 61 tok/s | — |
| Context Window | 1M | 1.0M |
| Released | 2026-09-01 | 2026-07-22 |
| Open Weights | No | Yes |
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