Elon Musk and the xAI team are putting the finishing touches on Grok 4, the company's next-generation AI model scheduled for release shortly after July 4, 2025.
According to Musk's recent announcement on X, the team has been "grinding on Grok all night" with "good progress," but still needs "one more big run for a specialized coding model" before the official launch. This suggests the final training phase is focused on enhancing the model's programming capabilities.
Grok 4 represents a significant upgrade from Grok 3, which was released in February 2025. The decision to skip the previously planned Grok 3.5 release and move directly to Grok 4 indicates xAI's ambition to deliver a more substantial improvement rather than an incremental update.
One of the most notable features of Grok 4 will be its specialized coding capabilities. Recent findings in the codebase suggest xAI is building a native code editor within the Grok web interface, modeled after Visual Studio Code. This will allow users to directly modify, write, and debug code, signaling a move toward "agentic coding" where AI not only suggests code but acts more autonomously within an integrated development environment.
The release will include two distinct variants: Grok 4 for general-purpose use and Grok 4 Code for specialized programming tasks. According to sources, Grok 4 Code will be available on Cursor at launch and will support text and vision inputs with a 130k token context window, though image generation capabilities will arrive later.
This launch timing is strategic, as it comes when other major AI systems are also expected to release updates, including OpenAI's GPT-5 and Google's Gemini Deep Think. The competitive landscape has intensified, with each company pushing to establish dominance in specific AI capabilities.
Grok 4's development has been powered by xAI's impressive computing infrastructure. The company reportedly has two AI data centers, with the first containing 400,000 Nvidia H100 equivalents and the second housing 550,000 H100 equivalents, with plans to expand to 5 million H100 equivalents over the next 5-8 months.
For users, Grok 4 will be accessible through X Premium Plus subscriptions and xAI's dedicated platforms, continuing the integration strategy that has characterized previous Grok releases.