Llama 4 Scout 17B 16E Instruct spotted on Arena
Confirmed6 evidence links
English original

Meta
Llama 4 Scout 17B 16E Instruct is a model from Meta with open weights, first recorded on 18 Sep 2026; its release date is not established. The context window is 327,680 tokens.
The context window is 327,680 tokens.
Yes. Meta publishes the weights.
Its release date is not established. Signal Forge first recorded it on 18 Sep 2026.