SpaceXAI unveils Grok 4.5, dubbed an ‘Opus-class model’ by Elon Musk

SpaceXAI announced the release of its latest model, Grok 4.5. Elon Musk referred to the new model as an “Opus‑class” system. The announcement was accompanied by a visual of the xAI logo on a smartphone. The phone display also features SpaceX branding in the background. Grok 4.5 is positioned as an upgrade over previous versions. The description suggests a focus on advanced capabilities. SpaceXAI highlighted the model in its recent communications. Observers will watch how the Opus‑class label translates into performance.