Meta AI is free; Grok starts at $16/mo. Both rated 4.3/5 by users.
Meta's AI assistant powered by Llama 4 — built into WhatsApp, Instagram, Facebook, and Messenger.
AI assistant by xAI (Elon Musk) with real-time access to X/Twitter data and uncensored responses.
Independent analysis based on features, pricing, and user ratings
Meta AI uniquely offers WhatsApp/Instagram integration, Real-time search, Llama 4 powered. Grok uniquely offers Real-time X/Twitter data, Code assistance, Web search. Both share 2 features including Image generation, Voice mode.
Meta AI is free; Grok starts at $16/mo.