Do AI models train on my real estate data?

On enterprise and API tiers, no, your inputs are not used to train the provider's models by default; on a self-hosted model, never, because nothing leaves your environment. Free consumer tiers can differ and may retain inputs unless you opt out. Tier choice, not luck, keeps your deal flow out of any training set.

The distinction that builds trust here is between training on your data and temporarily processing it to answer. A model always has to read your prompt to respond; that is processing, and on a no-train tier it happens without your input ever entering a future training run. Training is the separate step where a provider uses submitted content to improve its models, and that is the step a proper tier switches off. Confusing the two is what makes people afraid to use AI at all; separating them is what lets a firm use it correctly.

Attribute the specifics to each provider's dated policy rather than trusting a blanket claim. Anthropic's Commercial Terms of Service state Anthropic does not use your Inputs or Outputs to train models (Anthropic Commercial Terms of Service, current as of 2026). OpenAI states API and business/enterprise data is excluded from model training by default (OpenAI API data usage and Enterprise privacy documentation, current as of 2026). These terms are versioned and can change, so verify the version dated to your contract. This is architecture guidance, not legal advice.

A NextAutomation system is built on models that do not train on your data by default, so your deal flow, financials, and investor information stay private as a design requirement, not a checkbox someone might forget. We set the tier, the retention posture, and the data-handling policy so the answer to this question is provably no for your firm specifically. See the Data, Security and Compliance FAQ for the account settings, ChatGPT vs Claude for business for how the two providers' business tiers compare on retention, and the Fractional Chief AI Officer engagement if you want someone senior owning that policy for you.

If your team only ever uses AI on public marketing copy, the training question barely matters. The moment confidential deal data is involved, the tier and the policy have to be set deliberately, and that is what an Operations Audit or the AI Team Program locks in. Start there.