Is it possible (and how) to access previous chat completions using the chat response Id

[novaphil]

See my reply in your other thread, please avoid multiple cross-posts in the future

How to keep session with gpt-3.5-turbo api?

There is no conversation/history support for OpenAI API’s. You must send history (or summary) with each request, even though it does use tokens. ID’s are likely for internal OpenAI logging/traceability/debugging. You can see in the API reference there are no endpoints that accept that conversation ID. Bing/GPT is not trustworthy regarding OpenAI API.