SpaceXAI will make Grok 4.5 available to the public today.
Elon says it is an Opus-class model, but faster, more token-efficient and lower cost.
Based on strong positive feedback from customers in our beta test program, @SpaceXAI will make Grok 4.5 available to the public tomorrow.
It is an Opus-class model, but faster, more token-efficient and lower cost.
— Elon Musk (@elonmusk) July 8, 2026
Achieving an Opus level model would make it competitive against OpenAI. Opus level is not the Fable leading edge but Fable has limited availability.
Similar web reports that online usage sessions are longer for Grok.com than for other AI like Chatgpt.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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