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
#244
Down 59% week over week
Tokens
2.6B
2026-10-15
Requests
254.8K
254,789
Tool calls
-
Input / M
$2.00
Output / M
$10
Cache / M
$0.10
Context
1M
1,000,000 tokens