Claude Opus 4.5
Claude Opus 4.5 is a reasoning model created by Anthropic. It is served by Anthropic API.
Self-hostableNo
Reasoning TierExtended
Max Tokens200K in / 64K out
Training Cutoff2025-03
Release Date2025-11-01
SWE-Bench Resolved ↗79.2%
SkateBench Score ↗62.86%
Claude Opus 4.5 Tokenizer
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Claude Opus 4.5 Pricing
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$0.00
Input: $0.00·Output: $0.00
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