Grok 4.1

Published

Nov 17, 2025

Grok 4.1 is an AI model developed by xAI (United States), first published in November 2025. It works in the language domain, on tasks such as language modeling/generation, question answering, mathematical reasoning and 2 more.

Epoch AI has no training-compute estimate for this model.

Access: API access. Its weights are not openly released.

Full record

Organization: xAI
Country of organization: United States
Domain: Language
Task: Language modeling/generation, Question answering, Mathematical reasoning, Quantitative reasoning, Code generation
Model accessibility: API access
Open weights: No

Benchmark results

01	WebDev Arena	Arena Score	1208.6
02	Cybench	Unguided % Solved	0.39