Model family timeline
Last updated Apr 5, 2025
Llama 4 model releases
A source-backed timeline for the Llama 4 model family, collecting release dates, labs, access details, context windows, and major lifecycle changes.
3
Models
1
Labs
3
Open
3
Recent
Most recent in this set
3 models
Llama 4 Maverick
AvailableMeta AIFrontierOpen weights
Meta's flagship open-weight MoE; highest MMLU among open models at release.
Type
MoE
Params
400B
Context
1M
Top eval
—
Released
Apr 5, 2025
1.2y ago
MoE400B1M ctxApr 5, 2025
Llama 4 Scout
AvailableMeta AIOpen weights
Efficient open-weight MoE designed for very long context on modest hardware.
Type
MoE
Params
109B
Context
10M
Top eval
—
Released
Apr 5, 2025
1.2y ago
MoE109B10M ctxApr 5, 2025
Llama 4 Behemoth
AnnouncedMeta AIFrontierOpen weights
Meta's announced but unreleased Llama 4 teacher model: a multimodal MoE with 288B active parameters and nearly 2T total parameters. Meta says it was still training when Scout and Maverick shipped and that those released models were distilled from Behemoth.
Type
MoE
Params
2T
Context
—
Top eval
—
Released
Apr 5, 2025
1.2y ago
MoE2T— ctxApr 5, 2025