xAI has launched Grok 4 Fast, a more efficient reasoning model that reduces thinking tokens by 40% compared to its predecessor, Grok 4, while offering a 98% reduction in price with similar performance levels.
This new model boasts a unified architecture designed to handle complex requests and provide quick responses. The streamlined design enables Grok 4 Fast to process information effectively and deliver results efficiently.
In tests conducted on LMArena, Grok 4 Fast demonstrated exceptional capabilities, ranking first in search-related tasks and eighth in text-related tasks. The model’s performance showcases its ability to excel in various applications.
Grok 4 Fast is now accessible to all users across web, iOS, and Android platforms, expanding its reach and potential impact. The launch of Grok 4 Fast underscores xAI’s commitment to innovation in the AI sector.
The AI market is highly competitive, with major players like Google and Anthropic preparing to release next-generation models, including the next-gen Gemini and updates to the Claude Opus model. Despite this competition, xAI continues to push the boundaries with the introduction of Grok 4 Fast.




