Llama (Meta) is free; Grok starts at $16/mo. Llama (Meta) is rated higher at 4.7/5 vs Grok's 4.3/5.

Meta's open-source large language model — the most popular foundation model for self-hosting and fine-tuning.

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
Llama (Meta) uniquely offers Open source & free, Self-hostable, Llama 3.3 70B. Grok uniquely offers Real-time X/Twitter data, Image generation, Code assistance. Both share 0 features.
Llama (Meta) is free; Grok starts at $16/mo.

Free tier available