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Grok 4 Heavy

xAILanguage modeling/generationQuestion answeringMathematical reasoningQuantitative reasoningCode generation

Grok 4 Heavy is a language modeling/generation model from xAI released in 2025.

About Grok 4 Heavy

We have made further progress on parallel test-time compute, which allows Grok to consider multiple hypotheses at once. We call this model Grok 4 Heavy, and it sets a new standard for performance and reliability. Grok 4 Heavy saturates most academic

Details

Provider
xAI
Task
Language modeling/generation,Question answering,Mathematical reasoning,Quantitative reasoning,Code generation
Released
2025-07-10
Open weights
No
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