X.AI offers a free tier
SpaceX acquired xAI in February 2026
X.AI launched the Grok Imagine API in January 2026
X.AI raised $20 billion in Series E funding in January 2026
X.AI released updated Grok-2-1212 models in December 2024
X.AI develops AI models focused on mathematical reasoning and scientific applications, founded by Elon Musk to create AI systems that can understand and reason about complex problems.
Limits
Limits
Limits
Limits
Limits
Limits
Limits
Best for
Experimenting with uncensored AI models and accessing real-time social media data
Worst for
Enterprise teams and AI researchers requiring reliable, production-ready systems with strict accuracy standards.
Grok 4.1 Fast Reasoning costs $0.20 per million input tokens
Users praise X.AI's multimodal support including image generation
Experimenting with uncensored AI models and accessing real-time social media data
Advantages
Dealbreakers
Building applications requiring affordable AI inference with good input token economics
Advantages
Dealbreakers
Large-scale AI deployment requiring dedicated capacity and higher rate limits
Advantages
Dealbreakers