GPT-6.1 Sol vs Claude Opus 5
GPT-6.1 Sol and Claude Opus 5 side by side on shared benchmark boards, Codex Radar runs and the lowest real price per million tokens.
| Best score per board | GPT-6.1 Sol | Claude Opus 5 |
|---|---|---|
| Developer | OpenAI | Anthropic |
| Artificial Analysis Intelligence Index v4.3 | 51.8 | 50.8 |
| Terminal-Bench 4.0 | — | 53.9 |
| Terminal-Bench 4.0 (AA) | 56.1 | 49.0 |
| Code Arena | WebDev Overall | 1759.0 | 1694.0 |
| Agent Arena · Overall (Ranking / Pareto) | — | 8.8 |
| Artificial Analysis Coding Agent Index v1.5 | 62.9 | 59.7 |
| OpenDesign Arena · Quality ranking | 90.1 | — |
| DeepSWE v1.1 | — | 73.6 |
| Radar IQ (Codex) | — | 112.5 |
| Lowest real price / MTok | $0.023 | $0.0077 |
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