This video is from July 2025, so the tools and plan limits have moved on since. The ideas still hold, and the technology has only improved.
How can real estate agents use AI to write listing descriptions?
Writing listing descriptions is repetitive work. You can use ChatGPT, Gemini or Copilot, but the standard chatbots don’t know your style, the words you like, or more importantly the words you never want to see. The fix is a custom version of the chatbot trained on your own previous descriptions.
In the demo I type in a street address. The custom GPT searches the web for reliable sources such as Homes and Zed, pulls the key facts (size, bedrooms, bathrooms, location, year built), looks at the example descriptions I gave it and writes a new one in my style. The output is two short paragraphs plus a few bullet-point highlights.
How do you build a custom ChatGPT for listings?
You need a ChatGPT Plus or Pro account, which was US$20 a month at the time. No technical skills are needed.
- Open GPTs in the sidebar and choose Create.
- Fill in the name and description. These are only for humans and don’t change how the AI behaves.
- Write the instructions. This is the system prompt, sent along with every message you type. Tell it to search the web, write a polished listing, use your example phrases, avoid the phrases you hate, and follow a set structure.
- Include an example of the output you want. This is the key point - examples matter more than anything else.
- Add a knowledge source, such as a PDF of your past listing descriptions. The more it has, the better the output.
- Turn on web search so it can pull up-to-date property details.
- Test it in the preview window, then refine the instructions until it reads right.
To share it with your team, click Share and send the link to anyone who needs it. For a full comparison of plans, see ChatGPT pricing in NZ.
Can an AI voice assistant capture real estate leads when you can’t answer?
Yes. The second use case is a custom AI voice assistant. It works like the custom GPT, but with a voice, and it can take actions for you. I set up a test version on my own development site, with a “talk with AI” button you can embed anywhere on a website, or hook up to a phone number for when you’re out of service.
In the demo the assistant introduces itself as an AI, then asks what the caller wants to do. I played a seller. It asked about the property, the suburb, standout features, a rough price expectation, the timeframe for listing, and the best contact details. It then promised to pass the lead to a local agent.
The tool I used is Vapi, the most popular option for this. It follows the same pattern: a system prompt, plus documents and references. It needs more technical skill than a custom GPT, but you can switch models, pick voices from ElevenLabs and even clone your own voice.
The best part is tool access. My assistant has a “save user info” tool that writes each caller into a spreadsheet during the conversation. As the agent, you then see who called and what they said, and you could have it rank the leads you should call back first or email you straight away. More on this setup in building an AI voice agent for speed to lead, and on voices in cloning your voice with ElevenLabs.
Can AI make a property video tour from photos?
The third use case is for listings where there’s no budget for a video walkthrough. You upload photos of the house and AI generates the tour for you.
My first example used Google’s older Veo 2 model, built entirely from photos. It was impressive enough that you could see the shadow of the person with the camera in the shower. The newer Veo 3 adds built-in audio and character consistency, so a realistic AI agent can walk towards a house and talk about its features.
To try it, I opened Gemini, uploaded a photo of a house I found online and described what I wanted, including what the agent should say about the three-bedroom, two-bathroom home. The result was a talking-agent video generated from just that image and a few lines of text. Veo 3 needed a Gemini Pro plan at the time, which gave three or four generations a day. I also mentioned a tool I built with no daily cap that charges per use.
For a wider look at video for property marketing, see the AI real estate video marketing guide.
What are the limits of AI for real estate?
It won’t be perfect every time. Even with the same prompt, the voice and the person in the video vary slightly. Check every listing description and video before it goes out under your name.
The technology is moving fast. Testing these tools now gives you a competitive advantage, and in six months you may be able to upload your own voice and face and have it do the lot.
