Claude Opus 5.5 Is Out: The Real Cost and What Breaks
Anthropic shipped Claude Opus 5.5 on Tuesday, September 22, 2026. It's the first model in the Claude 5.5 family, the API ID is claude-opus-5-5, and it costs $4 per million input tokens, $20 per million output, and $0.20...
Engr Mejba Ahmed
Sep 22, 2026