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 Resolved79.2%
SkateBench Score62.86%
Claude Opus 4.5 Pricing
$0.00
Input: $0.00·Output: $0.00