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Claude Sonnet 4.5 (2025-09-29) (Anthropic)

claude-sonnet Reasoning Tool Calling Attachments Structured Output

Balanced Claude model for coding, analysis, agent workflows, and cost control

Providers 1
Released Sep 29, 2025
Input Modalities text, image, pdf
Output Modalities text
Tarsk Use coding

Available Providers (1)

Provider Model ID Input Cost Output Cost Context Max Output Docs
LLM Gateway anthropic/claude-sonnet-4-5-20250929 $3/MTok $15/MTok 200K 64K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output