What is the difference between the Knowledge Channel and the voice answer?

The DR GPT™ Knowledge Channel, powered by Sidekick, lets you ask questions across Harvey Castro's talks, interviews and writing, open the sources behind each answer, jump to the relevant moment in a video, and continue with follow-up questions. The voice answer tool, powered by DeepFoundAI, gives one generated answer spoken in a cloned version of his voice.

How do I book Harvey Castro to speak?

Start at https://www.harveycastromd.com/contact. Fees depend on the event: national or international travel, format, length, and whether workshops or advisory time are added around the keynote. Contact Harvey directly for a quote.

Ask DR GPT™

Ask me what I actually think

Q: What is DR GPT™?

DR GPT™ is the AI assistant of Harvey Castro, MD, MBA, a board-certified emergency physician and healthcare AI keynote speaker. It answers healthcare AI questions from his published books, articles and talks. It is an AI, not Harvey himself.

Q: Where do the answers come from?

From Harvey Castro's own work: his books, his articles, and his recorded talks. The answers are not drawn from the open web, and a written answer names its source where one applies.

Q: Can I hear the answer instead of reading it?

Yes. The voice answer tool at https://www.harveycastromd.com/ask-dr-gpt#talk is separate from the DR GPT™ Knowledge Channel. You type a question, and it speaks an AI-generated answer in a cloned version of Harvey Castro's voice, usually in under a minute. A talking video follows on the same page when one is available.

I am Harvey Castro, MD, MBA. I am a board-certified emergency physician who never stopped seeing patients, and I have spent three years writing about what artificial intelligence really does in medicine. Both tools below answer from that work, not from the open internet. Pick the one that fits how you want to explore.

Explore and follow up

Explore my work with the DR GPT™ Knowledge Channel

Ask questions across my talks, interviews and writing. Open the sources behind each answer, jump to the exact moment in a video, and keep going with follow-up questions. The channel suggests where to go next.

Open the Knowledge Channel

Opens in a new tab. Powered by Sidekick.

Listen

Hear an AI answer in my voice

Type a question and get a generated answer, spoken in a cloned version of my voice, with a talking video when one is available. This is a separate tool from the channel.

Try the voice answer

Stays on this page. Powered by DeepFoundAI.

Who it is for

Hospital boards deciding what to buy. Clinicians deciding what to trust. Conference organizers deciding whether my thinking fits their room. Anyone who has read one of my articles and wants to follow the argument further.

Good first questions

What should a hospital board ask before buying AI?How do you keep AI practical for clinicians?What does DR GPT™ stand for?

Tap one to hear it in my voice below, or ask it in the Knowledge Channel to see the sources.

Read the articles Book a keynote Explore the books About DR GPT™

The DR GPT™ Library

Every talk, interview and essay from my channel, in one place. Watch and read right here. When a question comes up, tap Ask DR GPT™ and ask me about any of it.

Ask me what I actually think

Explore my work with the DR GPT™ Knowledge Channel

Hear an AI answer in my voice

Who it is for

The DR GPT™ Library

Start here

Keynotes and TEDx

Interviews

En Español

Read

Research

Free download

What it answers from

What it will not do

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Hear an AI answer in my voice

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