Meta AI

open-weights

US · Founded 2014

Llama's publisher. The lab that made open-weights competitive with frontier.

Meta AI Research is the open-weights frontier. The decision to release Llama model weights publicly has reshaped the competitive landscape: every closed-source lab must now compete against free-to-use models within months of their release. Meta's motivation is strategic: a strong open ecosystem benefits platforms like WhatsApp and Instagram.

Main models

Llama 4
Llama 3.1 405B
Code Llama

Strengths

Open weights
Model breadth
Research publication
Ecosystem

Pricing

Free (open weights); inference services $0.20–$5 per million tokens

Models in the almanac

Llama 4 Llama 3.1 405B

Official site →