Claude Sonnet 4.5
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AnthropicAnthropicClaude

Claude Sonnet 4.5

1M context$3.00/M input$15.00/M output

Claude Sonnet 4.5 is an AI model from Anthropic built for agent workflows, with support for text, image, file input and text output. 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...

What is Claude Sonnet 4.5?

Claude Sonnet 4.5 is an AI model from Anthropic that Agent Mag tracks for pricing, context window, modalities, benchmarks, and API compatibility. Builders can use this page to compare Claude Sonnet 4.5 against other models for agent workflows and production deployments.

Model ID

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
Input
textimagefile
Output
text
Supported Parameters
include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_p

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