AnthropicGA
Claude Opus 5.5
Context
1M
Max output
128K
Input /1M
$4.00
Output /1M
$20.00
Capabilities
- Text and image input; text output
- 1M-token context and 128K maximum output
- Adaptive thinking is always on; default effort is medium
- Cache reads cost $0.20 per million tokens (0.05x base input)
- Fast mode (research preview, Claude API only) is priced at $8/$40 per million tokens