My experience with ChatGPT goes like this:

• Write me a block of code that makes x thing
• Certainly, here’s your code
• Me: This is wrong.
• You’re right, this is the correct version
• Me: This is wrong again.
• You’re right, this is the correct version
• Me: Wrong again, you piece of junk.
• I’m sorry, this is the correct version.
• (even more useless code) … and so on.

I’d go for stability. Smaller instances can be slow. If you want fast load times use a bigger one, like mastodon.social

But…

Bluesky should stop pushing their own protocol and adopt ActivityPub and the Fediverse. They really don’t offer anything that Mastodon or even Threads already have. It’s another centralized mess in the making.