AXIOS (Madison Mills) - Scoop: SpaceXAI launches new model, Grok 4.5
Elon Musk's SpaceXAI is launching Grok 4.5, its smartest model yet, and its first release since going public and acquiring the AI coding startup Cursor. Why it matters: The new model is being pitched as a coding and agentic-work tool, more than a consumer-facing chatbot — one that Musk says is "maximally truth-seeking" compared to its competitors. Zoom in: The company says Grok 4.5, trained alongside Cursor, outperforms comparable models on engineering and knowledge work. - "It is an Opus-class model, but faster, more token-efficient and lower cost," wrote Musk in a post on X , referencing what was until recently Anthropic's top model family. - A chart accompanying the announcement says the model outperforms Opus 4.8 on several key…