Claude 4.1 Opus

About Claude 4.1 Opus

Claude 4.1 Opus is an enterprise reasoning model from Anthropic designed for meticulous code manipulation and multi-step problem solving. It utilizes an extended thinking framework over a 200K context window for verifiable, drift-free execution.

Technical Specifications

Architecture specifications are undisclosed for proprietary models.

Resources

About Claude 4

Anthropic's fourth generation Claude models with advanced reasoning, extended context windows up to 200K tokens, and configurable thinking effort levels. Features improved safety alignment, nuanced understanding, and sophisticated task completion. Includes Opus (most capable), Sonnet (balanced), and Haiku (fast) variants, with thinking modes that enable transparent chain-of-thought reasoning for complex problems.

Other Claude 4 Models

• Claude Sonnet 4.6
• Claude 4 Sonnet
• Claude Opus 4.6