Various grantmaking orgs are limited in to only or mainly funding 501c3s, so for individual donors who are able to donate to c4s, there is some reason to think those opportunities would be more neglected and higher value.
That said, for anyone thinking about donating to METR, that still seems like a great (though maybe not optimal) choice!
I agree METR does great work! But I tentatively think it won’t be the right donation choice for individual EAs:
Great job on getting https://​​www.audaciousproject.org/​​grantees/​​project-canary-a-collaboration-between-metr-and-rand last year. This is some evidence METR will be well-placed to raise money from non-EA sources, which is especially valuable given that money counterfactually would not be spent very well by our lights.
Various grantmaking orgs are limited in to only or mainly funding 501c3s, so for individual donors who are able to donate to c4s, there is some reason to think those opportunities would be more neglected and higher value.
That said, for anyone thinking about donating to METR, that still seems like a great (though maybe not optimal) choice!