Anthropic

Claude Opus 4.1 (latest)

Flagship Claude model for deep reasoning, coding, and long-horizon agents

anthropic/claude-opus-4-1

Context

200K

Output

32K

Released

2025-08-05

Knowledge cutoff

2025-03-31

Types

InputTextImagePDF
OutputText

Reasoning

Supported

Tool use

Supported

Structured output

—

Attachments

Supported

Open weights

—

Provider pricing

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