How long will the files be saved in servers in new Open Ai's file search and code interpreter

Building simple Ai model with open AI APIS is there way to know how long my files will be saved in servers using these tools -Thank you-

Code interpreter uses ephemeral containers that expires if not used after 20 minutes.

As for files I afaik they don’t expire, but after it exceeds 1gb you are billed for storage.

Files are kept until you delete them. Note that OpenAI has a 30 day retention policy, so anything they have, you can assume they keep for at least 30 days even if you delete it.