ChatGPT vs Claude: Which Uses Your Chats for Training?
Both ChatGPT and Claude can use your chats for training by default, and both let you opt out. OpenAI’s policy says it may use your content to train the models that power ChatGPT. Anthropic’s says it may train on consumer Free, Pro and Max chats unless you opt out in settings.
Last checked: 15 October 2026 (latest check across the tools below; each row shows its own date). Verdicts come from each company’s own published policy, read by PolicyPeek. Not legal advice.
ChatGPT vs Claude at a glance
| Tool | PolicyPeek badge | What we recorded from the policy | Source | Last checked |
|---|---|---|---|---|
| ChatGPT | Trains by default, you can opt out | We may use Content you provide us to improve our Services, for example to train the models that power ChatGPT. Read our instructions on how you can opt out of our use of your Content to train our models. | policy | 2026-09-01 |
| Claude | Trains by default, you can opt out | Consumer plans (Free, Pro, Max): We may use your Inputs and Outputs to train and improve Anthropic AI models, unless you opt out through your account settings. Commercial plans don’t train by default. | policy | 2026-10-15 |
What each policy says
ChatGPT. OpenAI’s privacy policy says: “We may use Content you provide us to improve our Services, for example to train the models that power ChatGPT. Read our instructions on how you can opt out of our use of your Content to train our models.” PolicyPeek badge: Trains by default, you can opt out. (ChatGPT)
Claude. Anthropic’s privacy policy, as recorded by PolicyPeek: “Consumer plans (Free, Pro, Max): We may use your Inputs and Outputs to train and improve Anthropic AI models, unless you opt out through your account settings. Commercial plans don’t train by default.” PolicyPeek badge: Trains by default, you can opt out. (Claude)
So which one uses your chats?
On the badges, neither is ahead: both get Trains by default, you can opt out. The difference PolicyPeek recorded is scope. Claude’s entry separates consumer plans from commercial plans, which don’t train by default. ChatGPT’s entry is rated on OpenAI’s general policy. If you’d rather a tool that doesn’t train at all, see AI tools that don’t train on your data or the deeper ChatGPT guide.
How PolicyPeek decides
An AI model extracts the facts from the policy, then fixed rules decide the badge. Results the rules aren’t sure about are held for a person to look at; not every verdict is reviewed by a person. Each tool page links the exact policy used and the date it was checked. (Methodology)
FAQ
Does ChatGPT use my chats for training?
By default, yes. OpenAI’s policy says it may use content you provide “to train the models that power ChatGPT”, and it links instructions for opting out.
Does Claude use my chats for training?
On consumer plans (Free, Pro, Max), yes by default: Anthropic “may use your Inputs and Outputs to train and improve Anthropic AI models, unless you opt out through your account settings.” Commercial plans don’t train by default.
Is Claude more private than ChatGPT?
On training, PolicyPeek gives both the same badge: Trains by default, you can opt out. The badge doesn’t measure other privacy questions. Not legal advice.
How do I stop ChatGPT or Claude training on my chats?
Both policies describe an opt-out. ChatGPT’s policy links OpenAI’s opt-out instructions; Claude’s says to opt out through your account settings.
Last updated . Plain-text version for AI tools: chatgpt-vs-claude-training.md.