# LLaMA 4 Maverick

LLaMA 4 Maverick is an AI model released by Meta on Apr 5 2025. It has open weight. At release it scored 28% on BullshitBench v2.

## Facts

| Field | Value |
| --- | --- |
| Model | LLaMA 4 Maverick |
| Developer | Meta |
| Release date | Saturday, Apr 5 2025 |
| Licensing | Open Weight |

## Benchmark scores published at release

| Benchmark | Score | Source | What it measures |
| --- | --- | --- | --- |
| BullshitBench v2 | 28% | Lab | Given 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. |

## About LLaMA 4 Maverick

Llama 4 Maverick, released April 5, 2025 alongside the smaller Llama 4 Scout, moved the Llama line to a natively multimodal mixture-of-experts design — roughly 400B total parameters with 17B active per token. It launched with claims of beating GPT-4o and Gemini 2.0 Flash at far lower serving cost.

The release proved controversial: an experimental chat-tuned variant's LMArena ranking drew accusations of benchmark gaming, and the promised frontier-scale Behemoth model never shipped. Llama 4 ended up the final release of the Llama era — Meta's next generation arrived in April 2026 under the new Muse Spark name.

## Questions and answers

### When was LLaMA 4 Maverick released?

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

### Who made LLaMA 4 Maverick?

LLaMA 4 Maverick was built by Meta. Develops the open-weight Llama series of models. Committed to open-source AI research.

### What benchmark scores did LLaMA 4 Maverick get?

LLaMA 4 Maverick reports 1 tracked benchmark score — BullshitBench v2: 28%. Scores are the figures published at release by Meta.

### Is LLaMA 4 Maverick open source?

Partly. LLaMA 4 Maverick is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.

### What came before and after LLaMA 4 Maverick?

Meta's previous tracked release was LLaMA 4 Scout on Apr 5 2025. It was followed by Muse Spark on Apr 8 2026.


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Canonical page: https://aireleasetracker.com/model/meta/llama-4-maverick
Full dataset: https://aireleasetracker.com/llms-full.txt · JSON: https://aireleasetracker.com/models.json
Source: AI Release Tracker (https://aireleasetracker.com). Benchmark scores are the figures published by the releasing lab at launch.