# What is Claude?

Claude is a large language model (LLM) built by Anthropic. It's trained to be a helpful assistant in a conversational tone.

There are a couple of different ways to interact with Claude:

• **[claude.ai](🔗)** - Interact with Claude directly in a browser.

• **API** - Allows integrating Claude with your product for your customers.

The common thread behind these interfaces is Claude: the way you talk to it is mostly the same, regardless of which interface you use. This makes it easy to, for example, experiment with how you [prompt](🔗) Claude in the console, and move your prompt into a more automated API-based system.