AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

LLaMA 1 vs Grok 4 Heavy

Meta
LLaMA 1
SpaceXAI
Grok 4 Heavy
Overview
CompanyMetaSpaceXAI
Release dateFeb 24 2023Jul 9 2025
AccessOpen WeightProprietary
Timeline
Release gapLLaMA 1 shipped 866 days before Grok 4 Heavy

Which is better: LLaMA 1 or Grok 4 Heavy?

LLaMA 1 and Grok 4 Heavy don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 1 shipped 866 days before Grok 4 Heavy, so benchmark comparisons should account for the intervening progress.

LLaMA 1 is open weight, while Grok 4 Heavy is proprietary.

Direct benchmark comparisons are unavailable — LLaMA 1 and Grok 4 Heavy don't publish scores on any of the same benchmarks.

Frequently asked questions

LLaMA 1 was released by Meta on Feb 24 2023.

Grok 4 Heavy was released by SpaceXAI on Jul 9 2025.

LLaMA 1 is an open weight model released by Meta. Grok 4 Heavy is a proprietary model released by SpaceXAI.

Other comparisons