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!
@xai
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Grok 4 Fast Achieves Top Rankings on Search and Text Arena
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We partnered with @lmarena_ai to evaluate Grok 4 Fast on both Search and Text Arena, achieving #1 and #8 respectively.
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Grok 4 Fast Achieves New Pareto Intelligence Frontier Record
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Grok 4 Fast sets a new record on the Pareto Intelligence frontier as reported by @ArtificialAnlys
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Grok 4 Fast: New Multimodal Model with 2M Context Window
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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 http://
grok.com, http://
grok.x.com, iOS and Android apps, and OpenRouter. -
xAI Expands Specialist AI Tutor Team by 10x Across Domains
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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!
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Grok PDF Assistant: Explain and Query Documents Effortlessly
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Get through PDFs effortlessly with Grok.
— xAI (@xai) 5 septembre 2025
Highlight any section and click "Explain" to have Grok help you understand it.
Or click "Quote" to ask a specific question. pic.twitter.com/epQt4NypfwGet through PDFs effortlessly with Grok. Highlight any section and click "Explain" to have Grok help you understand it. Or click "Quote" to ask a specific question.
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Grok Enhances Coding Abilities with Consistent Updates
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We’d love to hear your feedback. The team is focused on delivering consistent updates to Grok’s coding abilities to improve user happiness and productivity. This is just the start, and if you’re excited about our team’s mission to build the world’s best coding models, we’d love
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Grok Code Fast 1: Guide Tips Best Results Prompt Engineering
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We’ve also put together a guide with tips on how to get the best results from Grok Code Fast 1. https://
docs.x.ai/docs/guides/gr
ok-code-prompt-engineering
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Grok Code Fast 1 Free Access Coding Platforms Seven Days
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For the next 7 days, Grok Code Fast 1 is available for free on popular agentic coding platforms including Cursor, GitHub Copilot, Cline, opencode, Windsurf, Roo Code, and Kilo Code.
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Grok Code Fast 1: Versatile AI Coding Model Builds Game Daily
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Grok Code Fast 1 is versatile across the full stack and is particularly strong at TypeScript, Python, Java, Rust, C++, and Go.
— xAI (@xai) 28 août 2025
Using Grok Code Fast 1, @DannyLimanseta built the following game in a day. pic.twitter.com/rz2RgBno5lGrok Code Fast 1 is versatile across the full stack and is particularly strong at TypeScript, Python, Java, Rust, C++, and Go. Using Grok Code Fast 1, @DannyLimanseta built the following game in a day.