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
#274
Down 35% week over week
Tokens
1.7B
2026-10-22
Requests
171.9K
171,907
Tool calls
-
Input / M
$2.00
Output / M
$10
Cache / M
$0.10
Context
1M
1,000,000 tokens