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Introducing Claude 3.7 Sonnet: our most intelligent model to date. It's a hybrid reasoning model, producing near-instant responses or extended, step-by-step thinking. One model, two ways to think. We’re also releasing an agentic coding tool: Claude Code.

Introducing Claude 3.7 Sonnet: our most intelligent model to date. It's a hybrid reasoning model, producing near-instant responses or extended, step-by-step thinking. One model, two ways to think. We’re also releasing an agentic coding tool: Claude Code.

Within Anthropic, Claude Code is quickly becoming another tool we can't do without. Engineers and researchers across the company use it for everything from major code refactors, to squashing commits, to generally handling the "toil" of coding.

After installing Claude Code, simply run the "claude" command from any directory to get started. Ask questions about your codebase, let Claude edit files and fix errors, or even have it run bash commands and create git commits. Watch Claude Code in action:

sent claude sonnet a christmas card :-) then i asked if it wanted to send any of its own, and it made a bunch (in thread below)

Introducing an upgraded Claude 3.5 Sonnet, and a new model, Claude 3.5 Haiku. We’re also introducing a new capability in beta: computer use. Developers can now direct Claude to use computers the way people do—by looking at a screen, moving a cursor, clicking, and typing text.

When the plan everyone thinks is crazy works