I wish there was a locked chatgpt version for researchers
https://github.com/RichardKelley/hflm?tab=readme-ov-file#lmg...
Regardless, OpenAI provides access to quite a few of their older models through the API, since the API lets you pass in a specific model version. I’m sure the older models won’t be available forever, but that is a much more stable target for researchers than just opening the ChatGPT website and typing in things.
Their system prompt includes the current date and time among other information, making it very very hard to run reproducible experiments against it.
But it’s the tool most people are using.