Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s latest model in the Opus series, meant for demanding reasoning tasks and complex problem solving. This model has improvements in general intelligence and vision compared to previous iterations. In addition, it is suited for difficult coding tasks and agentic workflows, especially those with computer use and tool use, and can effectively handle context usage and external memory files.

Model overview

Model ID: anthropic/claude-opus-4.5
Provider: anthropic
Type: language
Context window: 200,000 tokens
Max output tokens: 64,000

Tags: tool-use, reasoning, vision, file-input

Model pricing

Metric	Value
`Input tokens (/1M)`	`$5.00`
`Output tokens (/1M)`	`$25.00`
`Image generation`	`n/a`
`Cached input read (/1M)`	`$0.50`
`Cached input write (/1M)`	`$6.25`
`Pricing source`	`gateway`

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