All modelsCalculate what your real prompts cost on Claude Opus 5.5
Claude Opus 5.5
Anthropic model, released 22 Sept 2026.
$4.00
per 1M input tokens
$20.00
per 1M output tokens
$0.2
per 1M cached-read tokens
Price history
Price stable since we started tracking (22 Sept 2026). History will chart here as soon as it moves.
Specifications
- Lab
- Anthropic
- Released
- 22 Sept 2026
- Context window
- 1M tokens
- Max output
- 128k tokens
- Input modalities
- text, image, file
- Output modalities
- text
- Knowledge cutoff
- —
- Open source
- No
Frequently asked questions
How much does Claude Opus 5.5 cost?
Claude Opus 5.5 costs $4.00 per 1M input tokens and $20.00 per 1M output tokens (list price, updated every 6 hours).
What is Claude Opus 5.5's context window?
Claude Opus 5.5 supports a 1M-token context window with up to 128k output tokens.