All modelsCalculate what your real prompts cost on Claude Opus 4.1
Claude Opus 4.1
Anthropic model, released 5 Aug 2025.
$15.00
per 1M input tokens
$75.00
per 1M output tokens
$1.50
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
- 5 Aug 2025
- Context window
- 200k tokens
- Max output
- 32k tokens
- Input modalities
- image, text, file
- Output modalities
- text
- Knowledge cutoff
- 2025-01-31
- Open source
- No
Frequently asked questions
How much does Claude Opus 4.1 cost?
Claude Opus 4.1 costs $15.00 per 1M input tokens and $75.00 per 1M output tokens (list price, updated every 6 hours).
What is Claude Opus 4.1's context window?
Claude Opus 4.1 supports a 200k-token context window with up to 32k output tokens.