Anthropic: Claude Sonnet 4.5
anthropic/claude-sonnet-4.5
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
Modalities
In / Out Price
$3 / $15 per 1M
Context
1M
Released
Sep 29, 2025
Knowledge Cutoff
Jan 2025
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