SpaceXAI Grok 4.6: Matches GPT-5.6, Stock Surges 6%

Elon Musk's SpaceXAI has released its new Grok 4.6 AI model, just over a month after Grok 4.5. This new model shows significant improvements. What's interesting is Grok 4.6 matches OpenAI's GPT-5.6 Sol on certain benchmarks, scoring 61 on the Artificial Analysis Intelligence Index. It also ranks first on the GDPVal-AA v2, AA-Briefcase, and Harvey LAB benchmarks. SpaceXAI notes Grok 4.6 focuses on long-running agents and more ambitious interactive and visual work. Elon Musk called the new model a "banger." The SpaceX stock has surged over 6% following this release, trading at almost $142. This matters because it highlights the growing impact of AI developments on company valuations.