A new artificial intelligence model called Grok 4.5 has arrived, and the scale of computing power behind it is drawing attention from both the tech world and Wall Street.
According to TechCrunch, SpaceXAI released Grok 4.5, which Elon Musk described as an "Opus-class model" — a reference placing it among the more capable tier of AI systems.
Engadget reports that Grok 4.5 is the first model the company trained with the help of Cursor, an AI-assisted coding tool. That detail is notable because it suggests AI tools are increasingly being used to build other AI models.
The hardware story is where the numbers get large. According to a report highlighted by MSN, "tens of thousands" of Nvidia chips were used to train Grok 4.5. Nvidia's graphics processors are the industry-standard engines for training large AI models, and the volume required here underscores just how compute-hungry cutting-edge models have become.
The report also connects the launch to financial markets. Per MSN, Nvidia stock has bounced off its lows, and a new AI model release from SpaceX could help that upward move continue — the logic being that heavy chip demand from AI developers directly benefits Nvidia's business.
Why it matters: each new frontier model release is now also a signal about chip demand, tying the fortunes of AI developers and Nvidia — the company that supplies their most essential hardware — ever more tightly together.