Claude Sonnet 4.5

Anthropic's mid-sized model for powering real-world agents, with capabilities in coding, computer use, cybersecurity, and working with office files like spreadsheets.

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Model ID claude-sonnet-4-5@20250929
Launch stage GA
Supported inputs & outputs
  • Inputs:
    Text, Code, Images
  • Outputs:
    Text
Token limits
  • Maximum input tokens: 1M (Preview)
    200,000 (GA)
  • Maximum output tokens: 64,000
Capabilities
Usage types
Technical specifications
Images
  • Limitation and specifications: See Vision in Anthropic's documentation
Documents
  • Limitation and specifications: See PDF support in Anthropic's documentation
Knowledge cutoff date July, 2025
Versions
  • claude-sonnet-4-5@20250929
    • Launch stage: Generally available
    • Release date: September 29, 2025
Supported regions

Model availability

(Includes fixed quota & Provisioned Throughput)
  • United States
    • us-east5
  • Europe
    • europe-west1
  • Asia pacific
    • asia-southeast1
  • Global
    • global endpoint

ML processing
  • United States
    • Multi-region
  • Europe
    • Multi-region
  • Asia pacific
    • asia-southeast1
Quota limits

us-east5:

  • QPM: 1,500
  • Context length: 1,000,000 (beta), 200,000 (GA)

europe-west1:

  • QPM: 1,800
  • Context length: 1,000,000 (beta), 200,000 (GA)

asia-southeast1:

  • QPM: 1,500
  • Context length: 1,000,000 (beta), 200,000 (GA)

global endpoint:

  • QPM: 1,500
  • Context length: 1,000,000 (beta), 200,000 (GA)
Pricing See Pricing.