Claude Sonnet 4.5 Thinking

claude-sonnet-4-5-20250929-thinking

Modalities

Input

textimagepdf

Output

text

Pricing

Cost per 1 million tokens

Input

$3.59

Output

$17.993

Model Specs

Context Window

1,000,000

Max Output

64,000

Release Date

2025-09-29

Knowledge Cutoff

Capabilities

Reasoning

Tool Calling

Vision

Last Updated: 2025-09-29

Provider: