Claude Sonnet 4.5

Anthropic · anthropic/claude-sonnet-4.5

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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...

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Context

Max context: 1000000
Max output: 64000

Pricing

Input / 1M: 3.00
Output / 1M: 15.00
Blend / 1M: 9.00

Quality

Quality index: 89.6

Provider

Provider: Anthropic
Moderated: yes