Zillow Seeks Forgiveness, Not Permission; and Why MLSs Must Draw the Line
By Danny Frank
The Pearland Real Estate Expert | Realtor, Coach, and Mentor
The Move That Crossed the Line
When Zillow rolled out its flashy new integration with ChatGPT, it looked like the future. Consumers could type, “Show me homes for sale in Pearland under $500,000,” and within seconds, listings appeared with photos, prices, and details. Pretty slick, right?
There’s just one problem: Zillow never asked permission to use that MLS data in the first place.
According to a detailed WAV Group report by Victor Lund, Zillow transmitted MLS listing data into OpenAI’s ChatGPT environment without authorization. That’s a direct violation of the rules that protect brokers, agents, and consumers from misuse of our listing data. MLSs exist so every broker competes on a level playing field. When Zillow plugged its data feed into an unlicensed third party, it effectively said, “We’ll move first and ask forgiveness later.”
That’s not cooperation. That’s control.
Why It Matters
MLS rules, specifically the IDX data agreements, only allow data to appear on approved, licensed domains. Zillow’s permission covers Zillow.com and its own apps, nothing more. When that same data showed up inside ChatGPT, a domain owned by OpenAI, it broke both the spirit and the letter of MLS cooperation.
If any Houston brokerage tried that, the MLS would pull their feed immediately. The same should apply to Zillow. If MLSs don’t enforce the rules now, they send the message that some players get to bend them. That’s not a free market, it’s a monopoly.
This Isn’t an Isolated Incident
Zillow’s ChatGPT stunt isn’t the first time the company has pushed the boundaries. In fact, it’s part of a long-running pattern:
- FTC & State AG Lawsuit (2025): Zillow allegedly paid Redfin $100 million to exit the rental-ad market, a move regulators say suppressed competition.
- Compass v. Zillow: Compass claims Zillow’s “Listing Access Standards” unfairly block listings not entered into an MLS fast enough.
- CoStar Copyright Case: Zillow is accused of distributing thousands of property photos without proper licenses.
- Zillow Flex Class Action: Agents and consumers argue Zillow’s referral model lacks transparency and inflates commissions.
- ShowingTime Dispute: After buying ShowingTime, Zillow clashed with several MLSs over access and control of scheduling data.
In each case, Zillow’s strategy is the same: act first, push limits, and deal with the consequences later.
Sound familiar?
The AI Era Raises the Stakes
The move into ChatGPT takes things to a new level. AI systems don’t just display listings—they train on them. Once MLS data is in that ecosystem, it’s effectively out of the MLS’s control forever. That means broker-contributed data, our photos, remarks, and proprietary market insights, could be scraped, learned, and reused by systems that owe us nothing.
That’s why Victor Lund’s recommendations hit the mark. Every MLS should immediately:
- Enforce Domain Control; Data should only appear on licensed, MLS-approved domains.
- Create AI-Specific Data Licenses; Define how MLS data can and can’t be used in AI systems.
- Audit Every Outbound Feed ; Verify every integration, API, and SDK connection.
- Support Broker-Led Innovation – Keep technology development inside the cooperative, not outside of it.
Houston’s Advantage: HAR Leads the Way
Here in Houston, we’re fortunate. The Houston Association of REALTORS® (HAR) has long been ahead of the curve on data governance.
- HAR.com remains one of the top local consumer sites in the country.
- ShowingSmart, HAR’s in-house showing system, keeps scheduling data under REALTOR® control.
- And HAR’s MLS rules already enforce strict domain-display and clear-cooperation standards.
That means if any MLS can hold the line in this new AI era, it’s HAR.
But HAR can’t fight this alone. Every broker and MLS across the country needs to close ranks. We must define what cooperation means when AI systems and global tech giants are in the mix.
The Bottom Line
This isn’t about slowing innovation. It’s about protecting trust.
Zillow built its empire on the back of MLS cooperation. Every listing on its site started with a broker’s effort, a seller’s trust, and a REALTOR®’s data entry. If they want to build new AI tools or partnerships, that’s fine—but they need to do it within the same rules that every other participant follows.
When one company starts rewriting those rules, it’s not innovation anymore. It’s exploitation.
My Take as a Realtor, Coach, and Local Expert
I’m not against progress, I’m all for it. But progress without permission isn’t partnership. It’s theft of cooperation.
If the industry wants to evolve, let’s evolve together; with MLSs, brokers, and agents leading the charge, not playing catch-up.
Zillow sought forgiveness, not permission. It’s time for MLSs to stop forgiving and start enforcing.
About the Author
Danny Frank is The Pearland Real Estate Expert, a Realtor, Coach, and Mentor with JLA Realty.
He’s a former Chairman of the Board for the Houston Association of REALTORS®(2013) and Realtor of the Year (2014).
Danny helps sellers maximize results and coaches agents to thrive in every market.
📧 danny@jlatxrealty.com | 📞 713-569-8102 | 🌐 www.PearlandRealEstateExpert.com
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