Claude Opus 4.5
AnthropicAnthropic'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.
Anthropic's most capable Claude 4.5 model.
Claude Opus 4.5 — improved agentic coding and reasoning.