Meta · 2026-05-13 · major
Meta Incognito Chat for WhatsApp Meta AI — Private Processing Keeps Conversations Out of Meta's Reach, Powered by Muse Spark
WhatsApp's Meta AI gets an incognito mode that runs inside WhatsApp's Private Processing enclave. Messages vanish when the session ends and Meta cannot read them. Uses the Muse Spark model; Sidechat follows.
WhatsApp adds an incognito tab to Meta AI: chats are processed in WhatsApp's Private Processing enclave and vanish on session close.
Key specs
| Underlying model | Muse Spark |
|---|---|
| Rollout | WhatsApp + Meta AI app, coming months |
What is it?
Incognito Chat is a privacy-scoped mode for one-on-one chats with Meta AI inside WhatsApp and the standalone Meta AI app. Tapping the icon during a Meta AI conversation switches to a session whose messages are not stored, are erased when the user closes the chat or locks the phone, and are processed without Meta or any third party seeing the contents.
How does it work?
The incognito session runs on Meta's Private Processing infrastructure — the same confidential-compute environment Meta built for WhatsApp's AI summaries — extended to run the larger Muse Spark model that powers Meta AI. Because state isn't persisted, the assistant has no memory between sessions. A follow-on feature called Sidechat will let users invoke Private-Processing Meta AI inline within group threads without leaking the prompt to other participants.
Why does it matter?
Meta is chasing the same privacy posture that ChatGPT Temporary Chat and Claude's incognito mode already offer, but it's pinning the guarantee to confidential-compute hardware rather than a no-log policy. For the two-billion-plus WhatsApp users who treat the app as their default messenger, a verifiable private channel into an LLM closes a hole that competitors like DuckDuckGo and Proton had been wedging into.
Who is it for?
WhatsApp users, privacy and confidential-compute engineers.