Verification Checklist

  • Do you understand that "temporary chat / incognito mode" specifically means "not saved to history, not used for training" — not "this conversation will never be recorded in any form"? Those are two different claims
  • Have you actually read the full privacy policy or data-retention page for the platform you use, specifically the safety-moderation exception clause, rather than just the one-line "won't be saved" text on the feature toggle itself
  • Do you know that once a conversation is flagged by an automated system, its retention period differs sharply from the default deletion timeline for an unflagged chat, and that flagging thresholds and retention windows vary by platform
  • If you plan to discuss sensitive or easily-misclassified topics in a temporary chat, have you weighed the chance of automated flagging, rather than assuming incognito mode makes it a non-issue
  • Have you confirmed whether your account tier (personal, team, enterprise) or region has any variation on the general privacy terms, since some clauses apply differently depending on account type or location

1. What "incognito" actually promises: no history, no training data

The privacy promise behind temporary-chat features is actually quite specific once you read the official documentation. OpenAI's Temporary Chat help page states plainly that temporary chats don't use memory or custom instructions by default, don't appear in your chat history, and aren't used to train models. Anthropic makes a similar commitment for Claude's incognito-style conversations: they are never used for model training. Put together, those two claims define a concrete, checkable scope — "not saved" and "not in the training set" — not a blanket statement that the conversation is invisible to everyone, in every form. Treating "incognito" as the latter is the most common misreading of this feature, and it's the first thing worth untangling.

2. The moderation exception: a clause tucked into the corner of the privacy policy

Nearly every mainstream platform's temporary-chat feature carries a safety-moderation exception somewhere in its full privacy policy or a dedicated data-retention document — but that clause almost never appears on the feature-introduction page or next to the toggle itself. It's typically buried deeper, in the longer-form privacy policy text or a separate retention-policy page that most users never click into when they flip on temporary chat. The core of the exception is this: the "no memory, no training data" promise of incognito mode does not mean the platform's own automated safety and abuse-monitoring systems are switched off. Once a conversation trips that system's detection rules, the exception kicks in, and the content may be logged, retained, and — where necessary — escalated to human review.

3. OpenAI's public position: temporary chats retain data for safety, and disabling personalization doesn't disable safety checks

According to OpenAI's own Temporary Chat FAQ, temporary chat conversations are retained for a limited period for safety purposes — the stated figure is 30 days, after which they're deleted following safety review. The same page also states that turning off memory and personalization features does not disable the safety mechanisms that may use limited, safety-relevant context in rare, high-risk situations to help the model respond more safely. In other words, temporary chat does deliver on its two core promises — no persistent memory, no training use — but it never claimed to make a conversation invisible to the platform's safety monitoring. OpenAI treats these as two separate things in its own documentation.

4. Anthropic's public position: a flagged incognito chat can be retained far longer than 30 days

Anthropic's Privacy Center page on data retention states that if a conversation is flagged by automated trust-and-safety systems as violating usage policy, the inputs and outputs may be retained for up to 2 years regardless of whether the chat was in incognito mode, with the associated trust-and-safety classification scores kept for up to 7 years. An incognito conversation that isn't flagged, by contrast, is typically deleted automatically within 30 days and is never used for model training. The key distinction: the "never used for training" promise holds regardless of flagging, but how long the content is retained before deletion changes by orders of magnitude once the flagging mechanism is triggered.

5. Don't treat "incognito" as "nothing you type leaves a trace"

Taken together, both platforms' public documentation points to the same structure: "temporary chat / incognito mode" turns off two specific default behaviors — appearing in your visible history, and being used to train the model — but it does not turn off the platform's own safety and abuse-monitoring review systems, and the moderation exception kicks in specifically when content trips an automated risk rule, with retention length varying by platform and by whether the content was flagged. If you genuinely need to discuss sensitive or easily-misclassified topics in a temporary chat, the safer move is to actually read the safety-moderation and data-retention clauses in the full privacy policy of the platform you're using, rather than assuming the one-line "won't be saved" claim on the feature page covers everything. Actual retention rules can also vary by account tier (personal, team, enterprise) or region, so treat the latest official terms visible in your own login environment as the source of truth; the details cited here were verified as of the publish date and are for informational purposes only.