Some applications like appending v1 to the base url for some reason.
When fed with https://example.com/backend-api/codex/ they contact https://example.com/backend-api/codex/v1/models which severely aggravates my homicidal thoughts while I consider WHY on earth they would ask the user the base url and then NOT treat it like the base url it should be.
Please, for the love of god, just strip /v1/ from api calls such that https://example.com/backend-api/codex/v1/models starts working.