Most AI are deterministic, it's only a small subset of AI that are non-deterministic, and in those cases it's often by design. Also, in many cases, the AI itself is deterministic, but we choose to use the output in a non-deterministic way, e.g. the AI gives a probability output, and will always give the same probabiliies for the same input, and instead of always choosing the one with highest probability, we choose based on the probability weight, leading to a non-deterministic output.

Tl;Dr. Non-determinism in AI is often not an inherit property of the model, but a choice in how we use the model.

[–] hemko@lemmy.dbzer0.com 2 points 1 hour ago* (last edited 1 hour ago)

Okay, probably fair. I've only been working with LLMs that are extremely non-deterministic in their answers. You can ask same question 17 times and the answers have some variance.

You can request an LLM to create an OpenTofu scripts for deploying infrastructure based on same architectural documents 17 times, and you'll get 17 different answers. Even if some, most or all of them still manage to get the core principals right, and follow the industry best practices in details (ie. usually what we consider obvious such as enforcing TLS 1.2) that were not specified, you still have large differences in the actual code generated.

As long as we can not trust that the output here is deterministic, we can't truly trust that what we request from the LLM is actually what we want, thus requiring human verification.

If we write IaC for OpenTofu or whatnot, we can somewhat trust that what we specify is what we will receive, but with the ambiguity of AI we can't currently make sure if the AI is filling out gaps we didn't know of. With known providers for, say, azurerm module we can always tell the defaults we did not specify.

[–] pebbles@sh.itjust.works 3 points 2 hours ago (1 children)

Wouldn't you just set the temperature to 0?

[–] sudoMakeUser@sh.itjust.works 3 points 1 hour ago

Still going to be non-deterministic for any commercial AIs offered to us. It's a weird technology. I had a link to an article explaining why but I can't find it anymore.

[–] gothic_lemons@lemmy.world 5 points 3 hours ago (1 children)

Do you have a link explaining what deterministic means in the context of AI? Preferably for noobs

[–] nogooduser@lemmy.world 13 points 3 hours ago (1 children)

Deterministic means for the same input you always get the same output.

For AI it would be if you ask it a question multiple times using exactly the same words you would get the same answer.

[–] gothic_lemons@lemmy.world 1 points 1 hour ago

Thank you!