Elon Musk says Grok 4.5 has entered private beta at SpaceX and Tesla, built on a 1.5-trillion-parameter foundation.

Elon Musk announced xAI's Grok 4.5 is in private beta testing, claiming its performance rivals or surpasses Anthropic's Opus, ...

Elon Musk announced Grok 4.5's private beta, asserting its performance rivals or surpasses Anthropic's Opus, with ongoing ...

Musk said reinforcement learning is continuing to improve the model and that "Grok Build," xAI's coding-agent harness, is ...

Musk said xAI plans to release 'completely-trained-from-scratch' new models through SpaceX every month for the rest of the ...

Elon Musk has revealed that Grok 4.5 is now being tested internally at SpaceX and Tesla, claiming early evaluations place the ...

Elon Musk has announced that Grok 4.5, the next version of xAI’s chatbot, has entered private beta testing at SpaceX and ...

Elon Musk says Grok 4.5 is testing at Tesla and SpaceX, with Opus-level performance claims and a C/C++ rewrite planned for ...

Grok Build autonomous coding agent gains /goal mode: xAI’s terminal agent now plans, executes, and self-verifies complex ...

According to Musk, early evaluations indicate that the model's performance is close to, and may even exceed, Anthropic's ...