Claude
Anthropic's AI assistant, with a focus on careful, high-quality reasoning.
Claude, from Anthropic, is a general-purpose AI assistant used for writing, analysis, research and — via Claude Code — software development. It is known for long context windows (useful for working with large documents or codebases) and for Anthropic's emphasis on safety and reliability in how the model is trained.
Like other frontier chatbots it is available free with usage limits, with paid plans raising those limits and unlocking more capable models.