Meta AI app
The assistant in front of 3 billion people
Latest: Powered by Muse Spark (Apr 2026), with Muse Image generation (Jul 2026)
Meta's standalone AI assistant app, launched April 29, 2025 at the first LlamaCon. Built for voice-first, personalized assistance with memory and a social Discover feed, it started on Llama 4 and was upgraded to Muse Spark in April 2026 — Meta AI now reaches over 3 billion users across the app, WhatsApp, Instagram, Facebook, Messenger and smart glasses.
Why it matters
The Meta AI app is the distribution endpoint for everything MSL builds, putting a standalone assistant, voice chat and the Discover and Vibes feeds in front of three billion users across Meta's apps. Its April 2026 switch from Llama 4 to Muse Spark made it the biggest deployment of a closed Meta model.
Facts
- Unveiled at Meta's inaugural LlamaCon developer conference.
- The 2026 Muse Spark upgrade added interruptible natural voice chat, physician-informed health answers, and multi-agent task handling.
Try it yourself
Download on the App Store ↗ Download on Google Play ↗ Use it on the web ↗
Lineage
Sources
Meta Newsroom ↗TechCrunch ↗meta.ai ↗