xAI debuts a faster and more cost-effective version of Grok 4
A few months after the release of Grok 4 and an extremely problematic antisemitic meltdown of its chatbot, xAI is already trying to move on with its latest AI model. Elon Musk's xAI announced the release of Grok 4 Fast, a faster, more efficient reasoning model compared to its recent predecessor. According to xAI, Grok 4 Fast offers similar performance to Grok 4 while using 40 percent fewer thinking tokens on average.<br /> Along with faster results, xAI said Grok 4 Fast "results in a 98% reduction in price to achieve the same performance on frontier benchmarks as Grok 4," whether it's handling tasks that involve writing code or just browsing the web for quick responses. Similar to OpenAI's GPT-5 that alternates between a smart, efficient model and a deeper re [...]
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