Meta AI is free; Grok starts at $16/mo. Both rated 4.2/5 by users.




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.
Independent analysis based on features, pricing, and user ratings
Meta AI is free; Grok starts at $16/mo.