Elon Musk locks Grok 4.5 inside Tesla and SpaceX for hardcore testing
While others waste billions building abstract chatbots to write high school essays, Elon Musk is using his new AI toy to actually navigate rockets and drive cars. Let's see if this closed beta blows up or actually flies.
Elon Musk announced that xAI has silently pushed its brand-new Grok 4.5 model into a closed beta phase, bypassing public hype to run it exclusively inside SpaceX and Tesla.
The AI is built on the proprietary V9 architecture, boasting a massive 1.5 trillion parameters. To prevent the bot from just regurgitating Wikipedia, the developers injected coding data from Cursor, a tool that actually knows how clean code looks and where bugs love to hide. Internal benchmarks claim this setup already rivals or beats Anthropic's legendary Opus model.
Instead of answering philosophical prompts, the model is tasked with managing rocket navigation, autopilot systems, telemetry, and writing code for embedded hardware. Every time a rocket doesn't crash or a car avoids a fire hydrant, the system uses reinforcement learning to get smarter. SpaceX plans to take this madness further by training entirely new models from scratch every single month until the end of the year.
There is absolutely no release date for the general public, leaving normal users out in the cold while Elon's engineers play with the ultimate toy.
Vertical integration is a beautiful, terrifying thing when one billionaire owns both the AI company, the car factory, and the rocket launchpad. While competitors beg regulators for permission or burn cash on marketing campaigns, some people just run neural networks directly on hardware heading for orbit. The comment section is bound to have some strong thoughts on whether we are witnessing the birth of Skynet or just another overhyped software update.
Source: X (formerly Twitter)
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