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Claude opus 4.5
Claude Opus 4.5 is Anthropic's frontier reasoning model, optimized for complex software engineering and long-horizon tasks. It supports extended thinking and multimodal capabilities.
Thinking Mode
Parameters
N/A
Context
200,000 tokens
Released
Invalid Date
Leaderboards
Average Score combining domain-specific Autobench scores; Higher is better
Performance vs. Industry Average
Context Window
Claude opus 4.5 has a smaller context window than average (406k tokens), with a context window of 200k tokens.