Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
Rank
#7
Up 26% week over week
Tokens
7.14T
2026-10-21
Requests
54.8M
54,805,079
Tool calls
-
Input / M
$4.00
Output / M
$20
Cache / M
$0.20
Context
1M
1,000,000 tokens