Anthropic Claude

Claude 4 Opus — the AI assistant built for safety, honesty, and harmlessness

Anthropic Claude screenshot

Pricing

Free / $20 Pro

Platform

Web, iOS, API

About Anthropic Claude

Anthropic builds Claude, the AI assistant designed with Constitutional AI principles for safety and reliability. Claude 4 Opus delivers frontier-level performance with 200K context windows, computer use capabilities, and real-time Artifacts for analysis and collaboration.

Highlights

Claude 4 Opus200K Context WindowComputer Use AgentArtifacts & AnalysisConstitutional AI