LLaMA 4 Maverick vs GPT-5.4 mini
Meta LLaMA 4 Maverick | OpenAI GPT-5.4 mini | |
|---|---|---|
| Overview | ||
| Company | Meta | OpenAI |
| Release date | Apr 5 2025 | Mar 17 2026 |
| Access | Open Weight | Proprietary |
| Specifications | ||
Context window | — | 400k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 28% | 32%Best |
| Timeline | ||
| Release gap | LLaMA 4 Maverick shipped 346 days before GPT-5.4 mini | |
Which is better: LLaMA 4 Maverick or GPT-5.4 mini?
GPT-5.4 mini leads LLaMA 4 Maverick on 1 of the 1 benchmark they both report (BullshitBench v2). LLaMA 4 Maverick shipped 346 days before GPT-5.4 mini, so benchmark comparisons should account for the intervening progress.
LLaMA 4 Maverick is open weight, while GPT-5.4 mini is proprietary.
On BullshitBench v2, GPT-5.4 mini leads at 32% vs LLaMA 4 Maverick at 28%.
Frequently asked questions
LLaMA 4 Maverick was released by Meta on Apr 5 2025.
GPT-5.4 mini was released by OpenAI on Mar 17 2026.
LLaMA 4 Maverick is an open weight model released by Meta. GPT-5.4 mini is a proprietary model released by OpenAI.
Other comparisons
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