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GPT-5.5 (Medium)
OpenAI · Released 2026-04-23 · Independent benchmark scores from Artificial Analysis
Intelligence Index
33.8
Output speed
0.0
tokens/sec
Blended price
$11.25
per 1M tokens
Time to first token
0.00s
Model metadata
| Model ID | 6b79f899-e3c0-45f6-923c-243faccdb2fc |
|---|---|
| Slug | gpt-5-5-medium |
| Release date | 2026-04-23 |
| Provider | OpenAI |
| Provider slug | openai |
| Output speed | 0.0 tok/s |
| Time to first token | 0.00s |
| Time to first answer | 0.00s |
| Blended price ($/1M) | $11.25 |
| Input price ($/1M) | $5.00 |
| Output price ($/1M) | $30.00 |
All evaluation scores (18)
| aime | — |
|---|---|
| aime 25 | — |
| artificial analysis coding index | 71.50 |
| artificial analysis intelligence index | 33.80 |
| artificial analysis math index | — |
| gpqa | 92.6% |
| hle | 42.4% |
| ifbench | 71.0% |
| lcr | 83.0% |
| livecodebench | — |
| math 500 | — |
| mmlu pro | — |
| scicode | 54.5% |
| tau banking | 29.9% |
| tau2 | 91.8% |
| terminalbench hard | 57.6% |
| terminalbench v2 1 | 80.5% |
| terminalbench v4 0 | 5.1% |
Source: artificialanalysis.ai/models/gpt-5-5-medium
Benchmark data from Artificial Analysis.