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

LLaMA 2 vs o3-mini

Meta
LLaMA 2
OpenAI
o3-mini
Overview
CompanyMetaOpenAI
Release dateJul 18 2023Jan 31 2025
AccessOpen WeightProprietary
Timeline
Release gapLLaMA 2 shipped 563 days before o3-mini

Which is better: LLaMA 2 or o3-mini?

LLaMA 2 and o3-mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 2 shipped 563 days before o3-mini, so benchmark comparisons should account for the intervening progress.

LLaMA 2 is open weight, while o3-mini is proprietary.

Direct benchmark comparisons are unavailable — LLaMA 2 and o3-mini don't publish scores on any of the same benchmarks.

Frequently asked questions

LLaMA 2 was released by Meta on Jul 18 2023.

o3-mini was released by OpenAI on Jan 31 2025.

LLaMA 2 is an open weight model released by Meta. o3-mini is a proprietary model released by OpenAI.

Other comparisons