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Claude sonnet 4.5

Claude Sonnet 4.5 is Anthropic's most advanced model for real-world agents and coding. It features a 1M token context, state-of-the-art coding performance, and enhanced agentic capabilities.

Thinking Mode
Parameters
N/A
Context
1,000,000 tokens
Released
Invalid Date

Leaderboards

Average Score combining domain-specific Autobench scores; Higher is better

Performance vs. Industry Average

Context Window

Claude sonnet 4.5 has a larger context window than average (406k tokens), with a context window of 1000k tokens.

Claude sonnet 4.5 - AutoBench