Claude is Anthropic's family of AI models, available through claude.ai, mobile apps, Slack and Chrome integrations, and an API that powers tools like Cursor. Anthropic was founded by former OpenAI researchers with an explicit focus on making AI models safer and more predictable — less flashy marketing, more "this should behave the way we said it would."
The most noticeable strength is long context. You can hand Claude an entire report, contract bundle, or codebase and ask specific, nuanced questions without it losing track of earlier sections. Legal review, policy comparison, and "find every place we mention X" tasks benefit directly from a model that actually holds the whole document in mind.
Writing quality is the other reason people switch. Many users find Claude's first drafts of emails, articles, and documentation need less rewriting — steadier tone, fewer theatrical flourishes, and better instruction-following on style constraints like "no em dashes" or "write like a colleague, not a press release."
Two features are worth learning early: Projects let you attach persistent documents and instructions to a workspace so you stop re-explaining context, and Artifacts open a side panel for code, documents, or interactive previews so the main conversation doesn't get cluttered with a 200-line file.
For developers, Claude shows up constantly through the API and inside editors like Cursor and VS Code extensions — explaining unfamiliar code, refactoring across multiple files, and reviewing pull requests. Sonnet-tier models handle daily work well; Opus-tier models are for the harder problems where slower, deeper reasoning pays off.
Pricing runs Free, Pro, and Max tiers for individuals, plus Team and Enterprise plans with admin controls and clearer data-retention terms. Pick Claude when the job is long-document work, careful writing, or compliance-sensitive drafting with a human still reviewing the output — which, with any AI tool, should always be the case.