Claude Opus 4.1
Last verified September 7, 2026 · Anthropic pricing ↗$15.00/1M input · $75.00/1M output · 200K context · Anthropic
Retired
Not generally available
Anthropic has shut Claude Opus 4.1 down. You cannot buy it at the rate below. The price is kept so past spend and old estimates still reconcile, and it is excluded from the calculator’s default model list and from every ranking.
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Pricing Details
AnthropicRETIRED. Anthropic deprecated Opus 4.1 on 2026-06-05 and retired it on the Claude API on 2026-08-05; its own model-status table lists it as Retired. It is still served on Amazon Bedrock and Google Cloud, which set their own schedules, and Anthropic still prints its $15/$75 rate for those. Listed here for historical cost comparison: you cannot buy it first-party today. API ID: claude-opus-4-1.
Input / 1M tokens
$15
Output / 1M tokens
$75
Context Window
200K
Max Output
32K
Price History
No price change recorded since 2026-07-24, when this site started tracking this model.
Frequently Asked Questions
Common questions about Claude Opus 4.1 pricing and usage