arXiv doesn't need much. All they do is host static pdfs uploaded by someone else with free CDN services from Fastly [0]. I'm sure they could get academics to volunteer moderation services as well.

In reality you could host the entire thing for well under $50k/year in hardware and storage if someone else is providing a free CDN. Their costs could be incredibly low.

But just like Wikipedia I see them very likely very quickly becoming a money hole that pretends to barely be kept afloat from donations. All when in reality whats actually happening is that its a ridiculous number of rent seekers managed to ride the coattails of being the defacto preprint server for AI papers to land themselves cushy Jobs at a place that spends 90+% of their money on flights and hotels and wages for their staff.

I'm already expecting their financial reports to look ridiculously headcount heavy with Personnel Expenses, Meetings and Travel blowing up. As well as the classic Wikipedia style we spend a ton of money in unclear costs [1].

Whats already sad is they stopped having a real broken down report that used to actually showed things. Like look at this beautiful screenshot of a excel sheet. Imagine if Wikipedia produced anything this clear. [2]

[0] https://blog.arxiv.org/2023/12/18/faster-arxiv-with-fastly/

[1] https://info.arxiv.org/about/reports/FY26_Budget_Public.pdf

[2] https://info.arxiv.org/about/reports/2020_arXiv_Budget.pdf