For how long files generated by openAI assistant is stored

[jorgeguerrabrazil]

I have noticed I can access my file generated by openAI Assistant after one day.
I was wondering for how long those files are stored, if we pay for storing, and if there is an interface where we can see them all.

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The Storage Duration and Costs of Files Generated by the Assistants API

I have two questions about the file generated by the Assistants API. how long are the files generated by Assistants in storage? Will there be any costs during the storage period of files generated by Assistants? For the first question, I have researched the following content. In this article, I could not find where the generated files are contained. Reference article: https://platform.openai.com/docs/models/default-usage-policies-by-endpoint