Claude Sonnet 4.5

Context
200K
Max output
64K

Capabilities

Reasoning & Interaction
Reasoning
Infrastructure
Streaming

Details

Model IDanthropic.claude-sonnet-4-5-20250929-v1:0
Provider Amazon Bedrock
Creator Anthropic
Family—
License—
Status—
Typechat
Input modalitiestext
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window200K tokens
Max input—
Max output64K tokens
Reasoning tokensYes
Knowledge cutoff—
Release date
Sourceofficial

API

GET/v1/models/amazon/anthropic.claude-sonnet-4-5-20250929-v1:0