Update: the text-chat-davinci-002-20230126 model has been disabled by OpenAI, which is what this library's currently using under the hood.
OpenAI released this model in stealth to YC and select partners last week. It was fine-tuned for chat and used to some extent by ChatGPT itself. After @waylaidwanderer discovered it, we updated this lib to use it.
This is a temporary setback as we look for a workaround. It is very likely that OpenAI partners still have access to a similar model. If you have any info on workarounds, please share them with one of the admins or in #general.
This update replaces the previously leaked model text-chat-davinci-002-20230126 with text-davinci-003, which is pretty much standard GPT-3. It is not fine-tuned for chat, but it should work well enough for the time being to keep your applications working.
NOTE: this model is not free and your OpenAI account will be charged for usage. Double check their pricing to make sure this is okay for your use case.