GPT-6.1 Sol vs Claude Sonnet 5
GPT-6.1 Sol is the cheaper option on input; GPT-6.1 Sol is cheaper on output. Figures below are per million tokens, from vendor pricing cited in our reporting.
| GPT-6.1 Sol | Claude Sonnet 5 | |
|---|---|---|
| Input per 1M tokens | $2 | $2 |
| Output per 1M tokens | $10 | $10 |
| Cached input per 1M | $0.10 | — |
| Context window | — | — |
| Parameters | — | — |
| Licence | proprietary | proprietary |
| Benchmark | — | — |
| Vendor | OpenAI | Anthropic |
| Released | 29 Sept 2026 | 11 Aug 2026 |
What the numbers say
- Input price gap: 0% ($2 vs $2).
- Blended three-to-one input/output rate: $16.00 for GPT-6.1 Sol, $16.00 for Claude Sonnet 5.
- Context: — against —.
- Licence: GPT-6.1 Sol is proprietary; Claude Sonnet 5 is proprietary.
Sources
GPT-6.1 Sol specs · Claude Sonnet 5 specs · Full price index