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

LLaMA 2 vs Grok 2.5

Meta
LLaMA 2
SpaceXAI
Grok 2.5
Overview
CompanyMetaSpaceXAI
Release dateJul 18 2023Aug 2025
AccessOpen WeightProprietary
Timeline
Release gapLLaMA 2 shipped 745 days before Grok 2.5

Which is better: LLaMA 2 or Grok 2.5?

LLaMA 2 and Grok 2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 2 shipped 745 days before Grok 2.5, so benchmark comparisons should account for the intervening progress.

LLaMA 2 is open weight, while Grok 2.5 is proprietary.

Direct benchmark comparisons are unavailable — LLaMA 2 and Grok 2.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

LLaMA 2 was released by Meta on Jul 18 2023.

Grok 2.5 was released by SpaceXAI on Aug 2025.

LLaMA 2 is an open weight model released by Meta. Grok 2.5 is a proprietary model released by SpaceXAI.

Other comparisons