GPT-6.1 Sol vs Claude Sonnet 5.5
⚖ Claude Sonnet 5.5 wins 4 of 4 categories.
Scores by category
| Category | GPT-6.1 Sol | Claude Sonnet 5.5 |
|---|---|---|
| Overall | 74 | 79 |
| Writing | 58 | 74 |
| Support | 58 | 69 |
| Coding | 78 | 87 |
Provisional scores, 0 to 100 among the models we track, from Arena and Epoch AI. Value weighs the overall score against cost.
Price and specs
| GPT-6.1 Sol | Claude Sonnet 5.5 | |
|---|---|---|
| Vendor | OpenAI | Anthropic |
| Released | 2026-09-29 | 2026-09-28 |
| Context window | 1.1M | 1M |
| Open weights | No | No |
| Input per 1M tokens | $2.00 | $2.00 |
| Output per 1M tokens | $10.00 | $10.00 |
| Per 1,000 tasks | $8.00 | $8.00 |