Elon Musk's tech company released the newest version of Grok on Wednesday, promising a cheaper, more efficient alternative to other powerful AI models.

Elon Musk said the latest version of Grok is “faster, more token-efficient and lower cost” than one of Anthropic’s models.

Grok 4.5 is SpaceXAI's smartest model built for coding, agentic tasks, and knowledge work.

There are a lot of new AI models out this week.