What is Grok 4.5?

Grok 4.5 uses one third the tokens of GPT-5.5 or Fable while achieving a similar intelligence score.

“Grok 4.5 uses just one-third the amount of tokens as GPT-5.5 or Fable while achieving a similar score.”

Grok 4.5 is reported to be 10 to 15x faster and one-tenth the cost of Fable for equivalent agentic tasks.

“This is like a tenth of the cost of something like Fable and it's like oh this is like 10x like literally 10 to 15x faster than something like Fable at completing a task.”

Grok 4.5 warrants close tracking as a more token-efficient agentic model than OpenAI Codex alternatives, with a significant speed and cost edge over Fable.

“They're very capable but for whatever reason they're a little more token hungry. And that's one thing about Grock is it's it's very efficient with its tokens.”

GPT-5.5 took up to 30 minutes per agentic task roughly one month before the episode; Grok 4.5 completes comparable tasks near-instantly.

“With GPT 5.5, literally just a month ago, it would it would take like sometimes like 30 minutes for a task.”