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Anthropic

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...

Context window: 1,000,000 tokens
Input: text, image, file
Output: text
Pricing: $3/M input tokens, $15/M output tokens

View on OpenRouter. Model data sourced from OpenRouter.

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