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

LLaMA 3.1 vs o4-mini

Meta
LLaMA 3.1
OpenAI
o4-mini
Overview
CompanyMetaOpenAI
Release dateJul 23 2024Apr 16 2025
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
14%Best
8%
Timeline
Release gapLLaMA 3.1 shipped 267 days before o4-mini

Which is better: LLaMA 3.1 or o4-mini?

LLaMA 3.1 leads o4-mini on 1 of the 1 benchmark they both report (BullshitBench v2). LLaMA 3.1 shipped 267 days before o4-mini, so benchmark comparisons should account for the intervening progress.

LLaMA 3.1 is open weight, while o4-mini is proprietary.

On BullshitBench v2, LLaMA 3.1 leads at 14% vs o4-mini at 8%.

Frequently asked questions

LLaMA 3.1 was released by Meta on Jul 23 2024.

o4-mini was released by OpenAI on Apr 16 2025.

LLaMA 3.1 is an open weight model released by Meta. o4-mini is a proprietary model released by OpenAI.

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