@KabirKumar Hey! Here Jaime, director of Epoch. For context on the situation with OpenAI, please read this blogpost which hopefully will clarify what happened and our current relation with OpenAI.
https://epoch.ai/blog/openai-and-frontiermath
The TL;DR is that they funded and have exclusive access to FrontierMath, a math benchmark.
Going forward, we plan to continue collaborating with OpenAI and other labs on creating other benchmarks, and possibly other projects that advance our mission of informing the public about the trajectory of AI.