Claude Opus 4.1

Claude Opus 4.1 is a reasoning model created by Anthropic. It is served by Anthropic API.

Self-hostableNo

Reasoning TierExtended

Max Tokens200K in / 32K out

Training Cutoff2025-03

Release Date2025-08-05

Claude Opus 4.1 Tokenizer

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$0.00

Input: $0.00·Output: $0.00

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