GPT-5.6 Luna vs. GPT-6 Astra: Is a $1.20 Model Good Enough for Code Review?
See how AI is being used across engineering, improve the quality of what it produces, and use the right level of intelligence for every task and budget.
GPT-5
GPT-5 by OpenAI — specifications, pricing and published benchmark scores, with community links.
| Organization | OpenAI |
|---|---|
| Released | 2025-08 |
| License | Proprietary |
| Open weights | No |
| Parameters | Undisclosed |
| Context window | 400,000 tokens |
| Modality | Text, image |
| Input price | $1.25 / 1M |
| Output price | $10 / 1M |
Benchmark scores
- aime: 94.6
- gpqa: 88.4
- swe-bench-verified: 74.9
- mmlu: 91.2