Elon Musk’s SpaceXAI Releases Grok 4.6 AI Model Elon Musk's SpaceXAI released Grok 4.6, an AI model that improves on its predecessor Grok 4.5 and matches OpenAI and Anthropic's latest models on certain benchmarks. Elon Musk’s SpaceXAI has officially introduced its latest frontier model, Grok 4.6, just over a month after it released Grok 4.5. The AI model is notably an improvement on 4.5 and matches up to OpenAI and Anthropic’s latest models on certain benchmarks.