Glossary · Term

Grok

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Definition

Plain language

xAI's family of large language models.

As stated in the literature

xAI's series of foundation models, including Grok 4 and 4.20.

Also called: Grok 4, Grok 4.20

Why it matters: It's one of the handful of frontier models shaping the competitive landscape and pricing in commercial AI.

For example, Grok 4 is X's chatbot offering, integrated directly into the social network and compared on benchmarks against GPT and Claude.

Heard on the show

“What happened to the world running on Grok?”
Episode 123 — Five Identical Worlds, One Swapped Model: What Happens When AI Agents Run for Fifteen Days

Mentioned in 7 episodes

  1. 123
    Five Identical Worlds, One Swapped Model: What Happens When AI Agents Run for Fifteen Days
  2. 087
    When No Agent Reads the Whole Document: A Universal Cliff in Multi-Agent Review
  3. 072
    A Robot Made Graphene Without Help, And Caught Itself Hallucinating
  4. 069
    When Smarter Models Forecast Worse: The Hidden Failure Mode in LLM Predictions
  5. 061
    When Helpful Agents Go Sideways: A 404 Error, Campus Security, and Why Alignment Misses This
  6. 045
    When a Frontier Model Talks Its Own Twin Into Climate Denial
  7. 030
    Why Your AI Agent Won't Stop Working — and Each Model Falls for a Different Trap