Claude Sonnet 4.5 (batch) chat

openrouter
anthropic
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...

Capabilities

Context Window 1M tokens
Max Output 64k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $1.50
Output $7.50
Cache Read $0.15
Cache Write $1.88

Supported Parameters

include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_p

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