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Claude Sonnet 4
Anthropic model, released 22 May 2025.
$3.00
per 1M input tokens
$15.00
per 1M output tokens
$0.3
per 1M cached-read tokens
Price history
Price stable since we started tracking (7 Jul 2026). History will chart here as soon as it moves.
Specifications
- Lab
- Anthropic
- Released
- 22 May 2025
- Context window
- 1M tokens
- Max output
- 64k tokens
- Input modalities
- image, text, file
- Output modalities
- text
- Knowledge cutoff
- 2025-01-31
- Open source
- No
Frequently asked questions
How much does Claude Sonnet 4 cost?
Claude Sonnet 4 costs $3.00 per 1M input tokens and $15.00 per 1M output tokens (list price, updated every 6 hours).
What is Claude Sonnet 4's context window?
Claude Sonnet 4 supports a 1M-token context window with up to 64k output tokens.