Claude

Claude is Anthropic's flagship AI assistant, designed from the ground up with safety and accuracy as core priorities. Launched in 2023 and now on its Claude 3.7 and 4.x model family, it consistently ranks among the top AI assistants for complex reasoning, long-form writing, and code generation — with significantly fewer hallucinations than competing models.

The standout technical capability is Claude's 200,000-token context window, which allows it to read and reason across entire books, large codebases, or lengthy legal documents in a single session. This makes it the preferred choice for document analysis, due diligence, and any task where maintaining context across thousands of lines of text is critical.

Claude is available through claude.ai (free and Pro tiers at $20/month) and through the Anthropic API, which powers thousands of third-party applications. The Pro plan unlocks priority access and higher message limits. Claude is especially valued in professional contexts — law, medicine, finance, and software engineering — where accuracy and careful reasoning matter more than speed.