Claude

Claude is Anthropic's AI assistant, widely considered the best model for writing, analysis, and handling long, complex documents. Built on the Claude 4 model family, it supports context windows up to 200,000 tokens — meaning you can feed it an entire book manuscript, codebase, or legal document and have a coherent conversation about all of it.

Pricing runs Free (limited Claude Sonnet access), Pro ($20/month, full access to Claude Opus and Sonnet, extended thinking, priority access, Projects), and Team ($30/user/month, collaboration features, higher usage limits). Enterprise pricing is custom.

What sets Claude apart is writing quality and instruction-following accuracy. It tends to produce more nuanced, well-structured prose than competitors and is less likely to add unwanted padding or refuse reasonable requests. For developers, the Claude API is available via Anthropic directly. Claude Code, a separate terminal-based agentic coding tool, extends these capabilities to software development workflows.

The main limitation is that Claude doesn't browse the web natively on its free tier, and its image generation is not built-in the way ChatGPT's DALL·E integration is.