AI model · Anthropic
Claude Opus 4.5
Model ID: anthropic/claude-opus-4.5
- Input
- $5 per 1M tokens
- Output
- $25 per 1M tokens
- Context
- 200K tokens at once
- Max output
- 64K tokens per reply
- Released
- 24 Nov 2025 Anthropic
What it can do
- YesReasoning
- YesTool calling
- YesImage input
- NoOpen weights
- NoFree to use
Takes file, image, text; gives text.
How its listing describes it
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...
Sources
- Anthropic: Claude Opus 4.5 on OpenRouter — read 2 Oct 2026