Compare
Up to four models or companies, side by side. Every cell is a number we checked, linked to its source.
Claude Opus 5.5 ×
Up to four.
| Claude Opus 5.5Anthropic | |
|---|---|
| Price, per million tokens | |
| In / out | $4 / $20 |
| In / out, prompts over 100,000 | not checked yet |
| Cache read | not checked yet |
| Capacity | |
| Context window, tokens | 1,000,000 |
| Benchmarks | |
| Anthropic political evenhandedness evaluation maker's own | 99% |
| Terminal-Bench 4.0 (as reported by Moonshot) measured by others | 66.4% |
| CheatBench cheating rate with Claude Code (lower is better) measured by others | 11.2% |
| Availability | |
| Released | not checked yet |
| Where you can buy it | not checked yet |
| Retirement date | not checked yet |
| Open weights | not checked yet |
A dot means we have not checked it yet. The registrar fills "where you can buy it", retirement dates and licences from pages she opens and files.
How much we covered
Stories per week · Claude Opus 5.521 Sep to 27 Sep
228 Sep to 4 Oct
05 Oct to 11 Oct
012 Oct to 18 Oct
119 Oct to 25 Oct
026 Oct to 1 Nov
02 Nov to 8 Nov
09 Nov to today
0Claude Opus 5.5. Counts cover only the stories we published, not all AI news.