Elon Musk calls Grok a solid workhorse after a comparison with GPT-5.6 Sol and Kimi K3

elonmusk · x · 2026-07-21

Elon Musk says Grok is a "solid workhorse," quoting a user who says Grok 4.5 is the first model that does not fail on tasks where GPT-5.6 Sol, Fable 5, or Kimi K3 were also tested.

The quoted post argues that all of them are excellent, but Grok 4.5 stands out on price and speed, making it the preferred option in that comparison.

Related event: Musk Says Grok 4.5 Offers Speed and Value(2 posts)→

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