> It will be a useful benchmark to validate claims by people like Sam Altman about having achieved AGI.

I think it is possible to achieve AGI without creating an AGI that is an expert mathematician, and that it is possible to create a system that can do FrontierMath without achieving AGI. I.e. I think failure or success at FrontierMath is orthogonal to achieving AGI (though success at it may be a step on the way). Some humans can do it, and some AGIs could do it, but people and AI systems can have human-level intelligence without being able to do it. OTOH I think it would be hard to claim you have ASI if it can't do FrontierMath.