# Case studies.

How we built real systems, what they do today, and the numbers behind them.

## An AI assistant that turns website visitors' ideas into quote requests.

How we built the AI assistant on ndna.io: one question, an email, and the quote request is sent. Rate limits, a daily budget, stored conversations and an evaluation suite keep it cheap and reliable.

Read: [AI Assistant](https://ndna.io/case-studies/ai-assistant-for-ndna-io)