Claude Sonnet 4.5 (2025-09-29)

Latest Claude Sonnet with improved reasoning and extended thinking.

claude-sonnet-4-5-20250929
STABLE
200,000 context
Starting at $2.10/M (30% off) input tokens
Starting at $10.50/M (30% off) output tokens
Streaming
Tools
Reasoning

Providers for Claude Sonnet 4.5 (2025-09-29)

LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.

Anthropic

anthropic/claude-sonnet-4-5-20250929
Context Size
200k
Stability
STABLE
Pricing
Input
$3.00
/M
Cached
$0.30
/M
Output
$15.00
/M
Capabilities
Streaming
Tools
Reasoning
Try in Playground

AWS Bedrock

aws-bedrock/claude-sonnet-4-5-20250929
Context Size
200k
Stability
STABLE
Pricing
Input
$3.00$2.10
/M
Cached
—
Output
$15.00$10.50
/M
-30% off
Capabilities
Streaming
Tools
Reasoning
Try in Playground
    Claude Sonnet 4.5 (2025-09-29) – AI Model on LLM Gateway