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Hazel is a trustworthy, intelligent AI engine built by Altruist. Hazel connects to your data sources to deliver deeper reasoning and analysis grounded in your practice’s most relevant context.
Powered by the latest generation of models:ChatGPT GPT-5.1 - ChatGPT’s flagship model for agentic tasks with configurable reasoning and non-reasoning effort. Learn more.Claude Opus 4.5 - Claude’s most intelligent model, and an industry-leader for coding, agents, and computer use. Learn more.Claude Sonnet 4.5 - Balanced performance and practicality for most uses, including deep research and working with slides and spreadsheets.. Learn more.

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Get started

If you’re new to Hazel, start here to learn the essentials.

Get started

Watch a demo

Prompt Library

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Ask Hazel

Built to answer questions, surface insights, and help you get things done. Instead of clicking through endless pages, ask and access in seconds. It’s your intelligent partner that uses your data as the context to analyze and surface what matters most.Overviewaskhazel

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Meetings

Upcoming meetings are displayed with an agenda summary accessible in one click. That way, you’re always prepared to walk in (or log in) confident, informed, and ready to engage.

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Emails

Your most important client emails are highlighted so you never miss a critical message. Only emails from contacts in your CRM are pulled into Hazel, eliminating unwanted distractions.Hazel will then pull relevant contact details to help you draft intelligent responses, ensuring every reply is timely and informed.

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Privacy & Security

Underneath Hazel’s remarkable assistance, there is a powerful network of cybersecurity features engineered to keep client data safe, private, and within your control.

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Support

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