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GPT-5.6 Luna (medium)
OpenAI · Released 2026-07-09 · Independent benchmark scores from Artificial Analysis
Intelligence Index
38.1
Output speed
197.9
tokens/sec
Blended price
$2.25
per 1M tokens
Time to first token
2.52s
Model metadata
| Model ID | 58b812bf-8498-46db-b834-f43ccc614b61 |
|---|---|
| Slug | gpt-5-6-luna-medium |
| Release date | 2026-07-09 |
| Provider | OpenAI |
| Provider slug | openai |
| Output speed | 197.9 tok/s |
| Time to first token | 2.52s |
| Time to first answer | 2.52s |
| Blended price ($/1M) | $2.25 |
| Input price ($/1M) | $1.00 |
| Output price ($/1M) | $6.00 |
All evaluation scores (17)
| aime | — |
|---|---|
| aime 25 | — |
| artificial analysis coding index | 50.70 |
| artificial analysis intelligence index | 38.10 |
| artificial analysis math index | — |
| gpqa | 85.9% |
| hle | 24.5% |
| ifbench | — |
| lcr | 66.0% |
| livecodebench | — |
| math 500 | — |
| mmlu pro | — |
| scicode | 45.8% |
| tau banking | 15.3% |
| tau2 | — |
| terminalbench hard | — |
| terminalbench v2 1 | 53.2% |
Source: artificialanalysis.ai/models/gpt-5-6-luna-medium
Benchmark data from Artificial Analysis.