Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
anthropic/claude-opus-4.5Claude Opus 4.5 is an API model from Anthropic, released on Nov 24, 2025, with a context window of 200,000 tokens, pricing of $5 per million input tokens and $25 per million output tokens. It accepts file, image, text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.075.
Specs are sourced from OpenRouter and were last checked on Sep 24, 2026. Always confirm current pricing and limits with the provider before production use.
Claude Opus 4.5 supports a context window of 200,000 tokens.
Claude Opus 4.5 is listed at $5 per million input tokens and $25 per million output tokens on OpenRouter.
Claude Opus 4.5 was published on Nov 24, 2025.
Claude Opus 4.5 accepts file, image, text input and produces text output.