Meta LLaMA 4 Maverick vs OpenAI o3 — side-by-side specs.
Meta LLaMA 4 Maverick | OpenAI o3 | |
|---|---|---|
| Overview | ||
| Company | Meta | OpenAI |
| Release date | Apr 5 2025 | Apr 16 2025 |
| Model type | — | — |
| Open source | Yes | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | LLaMA 4 Maverick shipped 11 days before o3 | |
LLaMA 4 Maverick and o3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 4 Maverick shipped 11 days before o3, so benchmark comparisons should account for the intervening progress.
LLaMA 4 Maverick is an open-source / open-weight model; o3 is proprietary.
Direct benchmark comparisons are unavailable — LLaMA 4 Maverick and o3 don't publish scores on any of the same benchmarks.