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Claude 4 Opus

The flagship model, focused on deep reasoning, large-scale coding and sustained multi-step agentic workflows.

Model Details

Provider

Anthropic

Model Type

text

Context Window

200,000 tokens

Pricing

Input (1M)$15.00
Output (1M)$75.00

Capabilities

  • Highest capability in the family: described as “our most powerful model yet” by Anthropic.
  • Exceptional at long-running tasks requiring thousands of steps and sustained focus (e.g., continuous codebase work for hours).
  • Excellent performance on benchmarks: e.g., SWE-bench 72.5 % and Terminal-bench 43.2 %.
  • Designed for complex agentic workflows, deep reasoning, tool use, and large context windows.
  • Placed under a higher safety classification (ASL-3) due to its frontier capability and risk profile.

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