Claude Opus 4.5
by Anthropic · Released 2025-11 · Proprietary
1467
ELO Score
90.8
MMLU
—
HumanEval
200K
Context Window
$5.00
Input Price
About Claude Opus 4.5
Major upgrade with 87% GPQA and 80.9% SWE-bench, the highest-rated Anthropic model before the 4.6 generation.
Output Price
$25.00
License
Proprietary