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GPT-5.5 (medium) vs Claude 4.5 Haiku (Non-reasoning)
OpenAI vs Anthropic — side-by-side benchmark comparison
| GPT-5.5 (medium) | Claude 4.5 Haiku (Non-reasoning) | |
|---|---|---|
| Intelligence Index | 56.7 | 31.0 |
| Coding Index | 56.2 | 29.6 |
| Math Index | — | 39.0 |
| Output speed (tok/s) | 60.3 | 105.8 |
| Blended price ($/1M) | $11.25 | $2.19 |
| Time to first token (s) | 5.26s | 0.65s |
| aime | — | — |
| aime 25 | — | 39.0% |
| artificial analysis coding index | 56.20 | 29.60 |
| artificial analysis intelligence index | 56.70 | 31.00 |
| artificial analysis math index | — | 39.00 |
| gpqa | 92.6% | 64.6% |
| hle | 40.6% | 4.3% |
| ifbench | 71.0% | 42.0% |
| lcr | 72.3% | 43.7% |
| livecodebench | — | 51.1% |
| math 500 | — | — |
| mmlu pro | — | 80.0% |
| scicode | 53.5% | 34.4% |
| tau2 | 91.8% | 32.5% |
| terminalbench hard | 57.6% | 27.3% |
Benchmark data from Artificial Analysis.