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Anthropic
Claude Opus 5.5
Claude Opus 5.5 is a premium Anthropic model that accepts text and image input, with a 1M-token context window and up to 128K output tokens. On Test AI Models it supports Low, Medium and High reasoning effort. Run it on your own prompt and compare its cost, speed and output side by side with other models.
Input
- Text
- Image
Output
- Text
Tier
Premium
Context window
1M tokens
Up to 128K output tokens
Reasoning effort
Low, Medium or High effort
Vision
Reads images and PDFs
