| Claude Opus 5.5 | Claude Opus 4.6 | |
|---|---|---|
| Performance score | 1507 pts (#1) | 1504 pts (#2) |
| Usage · 7 days | 3.83T tokens (#9) | Outside usage top 30 |
| Output price | $20 per 1M tokens | $25 per 1M tokens |
| Input price | $4 per 1M tokens | $5 per 1M tokens |
| Context length | 1M tokens | 1M tokens |
| Released | Sep 22, 2026 | Feb 4, 2026 |
Source: OpenRouter (usage Oct 2 – 8 · prices), Arena (performance · quality) · CC BY 4.0. Prices are converted at fixed exchange rates.