Claude Opus 4.5

Name: Claude Opus 4.5
Price: 15 USD
Author: Anthropic

Anthropic🇺🇸 United States

active

Anthropic's most capable Claude 4.5 model.

Context window200K tokens

Input / 1M tokens$15

Output / 1M tokens$75

Version History

claude-opus-4-5October 15, 2025

Claude Opus 4.5 — improved agentic coding and reasoning.

87.5%

AIME 2024

89.0%

AIME 2025

94.8%

DocVQA

87.0%

GPQA

93.8%

MATH

89.8%

MMLU

83.2%

MMLU-Pro

80.7%

MMMU

80.9%

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