Claude

Claude is developed by Anthropic, an AI safety company founded in 2021 by former OpenAI researchers. Built around what Anthropic calls Constitutional AI, Claude is trained to be helpful, harmless, and honest — meaning more carefully hedged answers, clearer acknowledgment of uncertainty, and less tendency to fabricate facts compared to other major models.

**What Claude Does Best**

Claude excels at tasks requiring deep document analysis, careful writing, and nuanced reasoning. Its 200,000-token context window (roughly 150,000 words) means you can paste an entire book, legal contract, or codebase and ask questions about all of it. Claude is consistently rated among the best AI assistants for long-form writing, with prose that requires less cleanup than other models. The extended thinking mode in Claude 3.7 enables transparent, step-by-step reasoning for complex problems.

**Pricing**

Claude.ai offers a generous free tier with Claude 3.7 Sonnet access. Claude Pro at $20/month unlocks higher usage limits, priority access during peak hours, and early access to new models. The Claude API via Anthropic's platform is available for developers building applications.

**Who Should Use Claude?**

Claude is the right choice for researchers, lawyers, writers, and anyone processing long documents. It is also preferred by many developers for code review, architecture discussions, and tasks where careful reasoning matters more than speed. Claude's commitment to accuracy makes it well-suited for professional contexts where hallucinations carry real cost.

**Limitations**

Claude's free tier rate limits can be restrictive for heavy users. It does not generate images natively and lacks a dedicated voice mode. Web search is available but less seamlessly integrated than Perplexity's search-first approach. Anthropic's API pricing is at the higher end of the market.