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Comparison of Claude Opus 5.5, Claude Sonnet 5.5
Attribute
AnthropicRemove
AnthropicRemove
Price per 1M tokens
Input$4.00$2.00
Output$20.00$10.00
Cached input$0.20$0.20
Long prompts--
Limits
Context window1M1M
Max output128K128K
Scores
Intelligence169166
Coding64.8% · Claude Code61.8% · Claude Code
Capabilities
ReasoningYesYes
Image inputYesYes
Tool callsYesYes
Structured outputsNoNo
Open weightsNoNo
Data
Where prompts goThe provider's own retention policy applies.The provider's own retention policy applies.
Release
ReleasedSep 22, 2026Sep 28, 2026

Intelligence is the Epoch Capabilities Index (Epoch AI, CC BY 4.0). Coding is Terminal-Bench 4.0, the share of tasks solved by the agent shown.

TokenSpend stores no prompt or response content for any model. See Trust.