Claude

Claude is Anthropic's reasoning-focused AI assistant, renowned for handling long documents and complex code work. It excels at careful analysis and multi-step reasoning, processing up to 200K tokens of context—roughly a small book. Claude Code brings it directly into your IDE or terminal as an autonomous coding agent, while Artifacts turn responses into interactive documents, charts, or small apps you can edit live.

Highlights

• Processes enormous documents in one go (up to 200K tokens)
• Strong logical reasoning and detailed explanations
• Analyze, debug, and refactor code across languages
• Claude Code agent that autonomously writes and runs code
• Artifacts: turn answers into interactive, editable prototypes

Claude suits researchers, software engineers, and writers working with lengthy documents or complex problems. The free tier (Claude 3.5 Haiku) handles most tasks; Claude Pro ($20/month) unlocks the strongest model and higher rate limits. Claude Code is available as a standalone app, web interface, and IDE extension.