Claude.ai

Claude is Anthropic's AI assistant, renowned for its exceptional ability to handle long documents, nuanced reasoning, and careful instruction following. It excels at tasks that require sustained attention to detail, making it a favorite among professionals who need thoughtful, well-structured outputs rather than quick one-liners.

• Document analysis — process and analyze documents up to 200K tokens (roughly 500 pages), extracting insights, summarizing key points, and answering specific questions
• Long-form writing — draft reports, articles, technical documentation, and creative content with consistent quality across thousands of words
• Coding assistance — write, review, and debug code with strong reasoning about architecture and edge cases
• Research synthesis — compare sources, identify patterns, and create structured analyses from complex information
• Data extraction — pull structured data from unstructured documents, contracts, and reports

Writers, researchers, developers, lawyers, and analysts gravitate toward Claude for its writing quality, honesty about uncertainty, and ability to follow complex multi-step instructions faithfully. Its Projects feature lets you create persistent workspaces with uploaded reference documents for ongoing work.

Claude is available across web, iOS, and Android, with team features through Claude for Work. The model family includes Haiku (fast and affordable), Sonnet (balanced), and Opus (most capable).

1. Go to claude.ai and click Sign up. Register with your email address or Google single sign-on.
2. The Free plan gives you access to Claude Sonnet with daily usage limits — enough to evaluate the product for most use cases.
3. Upgrade for more power:
   • Claude Pro — $20/mo: 5x more usage, access to Claude Opus, Projects with file uploads, extended thinking mode
   • Claude Team — $25/user/mo (min 5 seats): Higher usage limits, admin dashboard, early access to new features
   • Claude Enterprise — Custom pricing: SSO/SCIM, expanded context windows, audit logs, dedicated support
4. Install mobile apps:
   • iOS
   • Android
5. Create a Project to upload reference documents and set custom instructions that persist across conversations — ideal for ongoing research or writing tasks.