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

LLaMA 4 Maverick vs GPT-5.4 nano

Meta
LLaMA 4 Maverick
OpenAI
GPT-5.4 nano
Overview
CompanyMetaOpenAI
Release dateApr 5 2025Mar 17 2026
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
28%Best
14%
Timeline
Release gapLLaMA 4 Maverick shipped 346 days before GPT-5.4 nano

Which is better: LLaMA 4 Maverick or GPT-5.4 nano?

LLaMA 4 Maverick leads GPT-5.4 nano on 1 of the 1 benchmark they both report (BullshitBench v2). LLaMA 4 Maverick shipped 346 days before GPT-5.4 nano, so benchmark comparisons should account for the intervening progress.

LLaMA 4 Maverick is open weight, while GPT-5.4 nano is proprietary.

On BullshitBench v2, LLaMA 4 Maverick leads at 28% vs GPT-5.4 nano at 14%.

Frequently asked questions

LLaMA 4 Maverick was released by Meta on Apr 5 2025.

GPT-5.4 nano was released by OpenAI on Mar 17 2026.

LLaMA 4 Maverick is an open weight model released by Meta. GPT-5.4 nano is a proprietary model released by OpenAI.

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