Elon Musk announced that xAI has launched private beta testing for its Grok 4.5 model at Tesla and SpaceX. This marks the first confirmed internal deployment of the advanced AI before its public release.
The Grok 4.5 foundation model utilizes 1.5 trillion parameters. The system incorporates supplemental training data from the AI coding platform Cursor.
Musk stated that early evaluations show performance levels rivaling or exceeding Anthropic’s Claude Opus. Internal testing focuses on optimizing engineering and manufacturing workflows to enhance Tesla’s operational capabilities.