LLaMA 2 vs o3-pro
Meta LLaMA 2 | OpenAI o3-pro | |
|---|---|---|
| Overview | ||
| Company | Meta | OpenAI |
| Release date | Jul 18 2023 | Jun 10 2025 |
| Access | Open Weight | Proprietary |
| Timeline | ||
| Release gap | LLaMA 2 shipped 693 days before o3-pro | |
Which is better: LLaMA 2 or o3-pro?
LLaMA 2 and o3-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 2 shipped 693 days before o3-pro, so benchmark comparisons should account for the intervening progress.
LLaMA 2 is open weight, while o3-pro is proprietary.
Direct benchmark comparisons are unavailable — LLaMA 2 and o3-pro don't publish scores on any of the same benchmarks.
Frequently asked questions
LLaMA 2 was released by Meta on Jul 18 2023.
o3-pro was released by OpenAI on Jun 10 2025.
LLaMA 2 is an open weight model released by Meta. o3-pro is a proprietary model released by OpenAI.