Claude Sonnet 5.5 vs GPT-6.1 Sol
⚖ Claude Sonnet 5.5 wins 4 of 4 categories.
Scores by category
| Category | Claude Sonnet 5.5 | GPT-6.1 Sol |
|---|---|---|
| Overall | 79 | 74 |
| Writing | 74 | 58 |
| Support | 69 | 58 |
| Coding | 87 | 78 |
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
| Claude Sonnet 5.5 | GPT-6.1 Sol | |
|---|---|---|
| Vendor | Anthropic | OpenAI |
| Released | 2026-09-28 | 2026-09-29 |
| Context window | 1M | 1.1M |
| 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 |