Claude Opus 5.5

Anthropic·US·Released 2026-09-22
ClosedGeneral LLMReasoningTool useVision
1Mcontext
$4 / $20per 1M tokens (in / out)
—parameters
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Specs

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Context window1M
Max output125K
Parameters—
Knowledge cutoff2026-06
LicenceProprietary
Commercial useAPI only
InputText · Image · PDF
OutputText
Familyclaude-opus

API price

USD per 1M tokens
Input$4
Output$20
Cached input$0.2

No price change recorded since we started tracking.

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