Claude Opus 4

anthropic

The first Claude 4 flagship model, delivering breakthrough coding and agentic performance with 72.5% on SWE-bench Verified. Opus 4 excels at autonomous research, multi-step reasoning, and complex problem-solving with 200K context and extended thinking capabilities. Superseded by Opus 4.1 and later generations.

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Capabilities

Tool Use

PDF Input

Extended Thinking

Image Input

Example Use Cases

Complex multi-step problems requiring rigor

Advanced coding challenges

Agentic workflows

Technical Specifications

Context Window

200,000 tokens

Max Output

32,000 tokens

Cache Miss Cost

$15 per 1M tokens

Non-Reasoning Cost

$75 per 1M tokens

Cache Read Cost

$1.50 per 1M tokens

Cache Write Cost

$18.75 per 1M tokens

Web Search Cost

$10 per 1K calls

Code Execution Cost

$0.0694 per 1K calls

⚠️ Legacy

Made legacy on

Reason

Outdated model

Recommended Replacement

Claude Opus 4.6