Claude Opus 4.6

anthropic

The world's best model for coding and professional work, built to power agents that take on whole categories of real-world work. Opus 4.6 excels across the entire SDLC, breaking through on hard problems, identifying complex bugs, and demonstrating deeper codebase understanding. It also delivers a step-change in knowledge work, with near-production-ready documents, presentations, and spreadsheets on the first pass. With 1M context window and 128K max output, this is the ultimate problem-solver.

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Capabilities

Tool Use

PDF Input

Extended Thinking

Image Input

Example Use Cases

Problem is extremely complex or novel

Need maximum claude intelligence

Cutting-edge research or difficult algorithms

Technical Specifications

Context Window

1,000,000 tokens

Max Output

128,000 tokens

Cache Miss Cost

$5 per 1M tokens

Non-Reasoning Cost

$25 per 1M tokens

Cache Read Cost

$0.50 per 1M tokens

Cache Write Cost

$6.25 per 1M tokens

Web Search Cost

$10 per 1K calls

Code Execution Cost

$0.0694 per 1K calls