Claude is Anthropic's consumer and developer-facing AI assistant, available through a web app, desktop and mobile apps, and an API that powers products across the industry. The 2026 model lineup includes Claude Fable 5.1, Opus 5, Sonnet 5, and Haiku 4.5, spanning a range from fast, cheap everyday tasks to Anthropic's most capable reasoning model.
For developers specifically, Claude Code is Anthropic's command-line agent for working directly in a terminal or editor: it can read a codebase, make multi-file changes, run tests, and commit, all from natural-language instructions. It's included starting on the $20 a month Pro plan, which puts a genuinely capable coding agent behind the same subscription as the general chat assistant, rather than as a separate paid product.
Anthropic has leaned specifically into safety and reliability as its differentiator against OpenAI and Google, and Claude has become a default choice for developers building on top of an API rather than just chatting with a consumer app, in part because of how well Claude Code and the underlying models handle long, structured coding tasks.