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Announcing an expansion to xAI For Government – making industry leading Frontier AI accessible to United States Federal Government users.1) All federal agencies and departments will get access to our Frontier AI models (Grok 4, Grok 4 Fast) for $0.42 per department for a period of 18 months starting today.2) We are committing a team of Grok Engineers to help the government harness our AI to its fullest potentialWe’re also growing our team and are hiring mission driven engineers who want to join the cause. ...

Grok 4 Fast is available now for all users in https://t.co/JdhapjnyIO, https://t.co/HZMD9C7lsf, iOS and Android apps in Fast and Auto modes.All users, including free users, will have access to our latest model without restrictions, marking a significant step toward democratizing advanced AI. ...

Pricing & Availability - Grok 4 Fast is temporarily FREE on OpenRouter and Vercel AI Gateway [1] - Grok 4 Fast is generally available via the xAI API [1] - xAI API pricing starts at $0.20 per 1 million input tokens [1] - xAI API pricing starts at $0.50 per 1 million output tokens [1]

We’d love to hear your feedback on Grok 4 Fast. The team will be incorporating your responses into continuous model upgrades, so please be vocal on X.If you want to push the limits of reasoning efficiency, please join us! https://t.co/Pn19i7sAOx ...

We partnered with @lmarena_ai to evaluate Grok 4 Fast on both Search and Text Arena, achieving #1 and #8 respectively. https://t.co/jFmGfJUKpZ ...

Grok 4 Fast sets a new record on the Pareto Intelligence frontier as reported by @ArtificialAnlys. https://t.co/zPJrmiKu4Y ...

Introducing Grok 4 Fast, a multimodal reasoning model with a 2M context window that sets a new standard for cost-efficient intelligence.Available for free on https://t.co/AnXpIEOhOD, https://t.co/53pltypvkw, iOS and Android apps, and OpenRouter.https://t.co/3YZ1yVwueV ...

Specialist AI tutors at xAI are adding huge value. We will immediately surge our Specialist AI tutor team by 10x!We are hiring across domains like STEM, finance, medicine, safety, and many more. Come join us to help build truth-seeking AGI!https://t.co/htpc2RijLG ...