Claude
Advanced AI assistant by Anthropic focused on being helpful, harmless, and honest.
Claude
Advanced AI assistant by Anthropic focused on being helpful, harmless, and honest.
Claude interface
About this tool
Claude is Anthropic's AI assistant, designed with a focus on being helpful, harmless, and honest. Built using Constitutional AI techniques, Claude is known for its thoughtful responses, strong reasoning capabilities, and reduced tendency to hallucinate compared to competitors.
Claude 4 Sonnet and Claude 4 Opus represent the latest generation, offering exceptional performance on complex analysis, long-document processing, and nuanced writing tasks. Claude's standout feature is its massive 200K token context window, allowing users to analyze entire books, codebases, or document collections in a single conversation.
The platform is available through claude.ai on web and mobile, plus a robust API for developers. Claude excels particularly at careful analysis, document summarization, and tasks requiring precision and nuance over raw speed.
Anthropic positions Claude as the responsible choice for organizations that need powerful AI with strong safety guardrails. Enterprise features include SSO, audit logs, and data retention controls.
Key Highlights
200K Context Window
Process up to 200,000 tokens — analyze entire books, long codebases, or hundreds of pages in a single conversation.
Constitutional AI
Trained with explicit safety principles, resulting in more careful, nuanced, and honest responses.
Superior Document Analysis
Excels at extracting insights from long, complex documents with high accuracy and attention to detail.
Claude 4 Opus
Top-tier reasoning model that outperforms competitors on graduate-level analysis and complex problem-solving.
Tool Use & Computer Use
Can call APIs, execute tools, and interact with computer interfaces for complex multi-step workflows.
Artifacts & Projects
Create and iterate on documents, code, and visualizations in a persistent workspace alongside conversation.
Use Cases
Legal & Contract Analysis
Upload lengthy contracts and legal documents for clause-by-clause analysis, risk identification, and plain-language summaries leveraging the full 200K context window.
Academic Research
Process research papers, compare findings across multiple studies, and generate literature reviews with accurate citations and careful reasoning.
Code Review & Architecture
Analyze entire codebases for bugs, security vulnerabilities, and architectural improvements. Claude's precision reduces false positives common in other AI tools.
Technical Writing
Draft documentation, API references, and technical guides with attention to accuracy and consistency across long-form content.
What Users Say
“The best AI for serious analytical work”
I've been using Claude Pro for legal document review and it's transformed my practice. The 200K context window means I can upload entire contracts and get precise analysis. It catches nuances that other AI tools miss completely.