OpenGameEval offers a unique testing ground to evaluate core model capabilities related to agenetic reasoning and long-horizon task solving.

The Roblox PII Classifier goes beyond detecting and obfuscating explicit PII text shared on Roblox, it’s designed to understand the context of a chat conversation to stop bad actors from engaging in PII-related conversations in the first place.

Actual technical info and open source here: https://corp.roblox.com/newsroom/2025/08/open-sourcing-senti...

Open source is here: https://github.com/Roblox/Sentinel.

One of Sentinel’s key advantages is that it does not require a large number of exemplars to function. Our current production system operates successfully with just 13,000 exemplars in the negative index.