R2 by cloudfare does not charge egress costs. It's 0.015$/GB/month for storage. Read operations are 0.36$ per million.
I do have a hard time believing that they will remain this cheap though, but who knows.
this post was submitted on 23 Jun 2023
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If the files are not going to be changing much, then what is typically done is to use a CDN service (e.g. Cloudflare, Akamai, Fastly). The idea is you have an "origin" which could be any old server which serves your files over HTTP (even a VPS running nginx). The CDN is configured to proxy requests to the origin, building up a cache of the files it serves. The CDN can serve files from cache on their own (very large) infrastructure. See also What is a CDN?
So I got curious and wondered how HuggingFace hosts their files. It’s AWS CloudFront:
$ curl -LI https://huggingface.co/facebook/musicgen-large/resolve/main/state_dict.bin
HTTP/2 302
content-type: text/plain; charset=utf-8
content-length: 1198
location: https://cdn-lfs.huggingface.co/repos/81/...
date: Fri, 23 Jun 2023 07:09:39 GMT
x-powered-by: huggingface-moon
x-request-id: Root=1-64954533-1eb79eed4ea500203f6435cb
access-control-allow-origin: https://huggingface.co
vary: Origin, Accept
access-control-expose-headers: X-Repo-Commit,X-Request-Id,X-Error-Code,X-Error-Message,ETag,Link,Accept-Ranges,Content-Range
x-repo-commit: c19300a6b2b62d29b345ae9eb7b163278e65238a
accept-ranges: bytes
x-linked-size: 6514108999
x-linked-etag: "1f0cf17b5e65c5dd8ba71767371c377f174e4ce1db44bc4d6657825769f26ffd"
x-cache: Miss from cloudfront
via: 1.1 65c7d0c3355767ac8658c2122c8280b6.cloudfront.net (CloudFront)
x-amz-cf-pop: SYD1-C1
x-amz-cf-id: XAU8X4yneUeudylCi_9MeAYZmISCr8OHiBcgjAGcBQT-edrBF6wGCA==
HTTP/2 200
content-type: application/octet-stream
content-length: 6514108999
date: Fri, 23 Jun 2023 07:06:20 GMT
last-modified: Thu, 08 Jun 2023 19:05:02 GMT
etag: "44ef1b51c0cc2200e29fed5cddbf8e27-408"
x-amz-storage-class: INTELLIGENT_TIERING
x-amz-server-side-encryption: AES256
x-amz-version-id: upVN9_QvGmQZMDWfVECqbytHgWjHTz4t
content-disposition: attachment; filename*=UTF-8''state_dict.bin; filename="state_dict.bin";
accept-ranges: bytes
server: AmazonS3
x-cache: Hit from cloudfront
via: 1.1 dff3fc94ddb54b32b708edf2668b23d2.cloudfront.net (CloudFront)
x-amz-cf-pop: SIN52-P1
x-amz-cf-id: JWTqKUDp8bVPD7Tt4DBySj8zbgT8G60sCA5BMC1cYF4vK9nx45f1Iw==
age: 200
vary: Origin
That's true, but I just checked a few CDNs and you won't find one for less than $.01/GB. The lowest I found was $.03/GB.
To keep costs down and depending on how much you want to get your hands dirty, you could start investigating renting dedicated servers. Some hosting providers offer unmetered network connectivity. Here's something from OVH: https://www.ovhcloud.com/en/bare-metal/rise/rise-stor-1/
And hey, depending on how grassroots the project is, there's always bittorrent! ;)
I was considering this. The hosting provider we use for model training runs doesn't charge for ingress/egress. Their storage costs would eat us alive though haha. OVH looks much more promising.
Lots of VC funding?
Probably. They might have gotten additional discounts off of the advertized price by talking with sales and committing to the service for a year or other ways.
Interesting, I'll have to have a look at doing something like that. If I remember correctly, the CivitAI devs are active on Discord, so maybe I could just ask them directly.
There's no harm in messaging the sales team directly. Whatever deals CivitAI got might not work for you, they might not even be legally allowed to mention specifics. But you can shop around and see what different providers will offer you.
Storj does it at 7 USD/TB. And there are providers that technically provide unlimited bandwidth, like Hetzner's dedicated servers; they still have some abuse limits, but even working within the limits should make it much cheaper. This means custom engineering though.
Would BitTorrent be an option?
There are also ad-supported download sites.
You could offer users a choice: BitTorrent, ads, or $1 for an instant download.
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