Llama 4: Meta's Latest — Scout, Maverick, and the MoE Revolution

The open-source default just got a massive upgrade. Here's what's new and which variant you should actually use.

Llama 4 at a Glance

Meta released Llama 4 in April 2025 with a fundamental architecture change: Mixture of Experts (MoE). Two variants were launched simultaneously:

Variant