If you ask it to export a table, report, or document in a custom GPT, the most common reason is not a broken link, but that the GPT does not have Code Interpreter & Data Analysis enabled at all, so it does not actually generate a downloadable file.
This error is particularly misleading because it looks like "an error in the download phase" on the surface, but the root cause is often in the generation phase. A GPT without a Code Interpreter may be able to say "I've generated it for you" in a conversation, but it can only output a text description or a pseudo-file link, and the download will of course fail.
There is only one direct fix: let the owner of GPT or someone with editing permissions go to the GPT configuration page and confirm that Code Interpreter & Data Analysis is open. Note that this step must be done by someone who can edit GPT, and ordinary users cannot fix it if they only have the ability to call it.
If it has been opened and an error is reported, then arrange it in this order:
1. Let GPT regenerate once, but make the file smaller.
2. Check whether the task itself is actually executed, and don't click to download it before the file is generated.
3. Run the same task again with Preview to confirm if there is an error in the generation process.
4. If it's a table, image package, or particularly large report, let GPT split and export it first, don't stuff too much content at once.
Why is "small file retry" important? Because some download failures are not GPT settings errors, but rather the generated file is too large or a step in the middle of the generation link is unsuccessful. OpenAI's official help also reminds that some download failures are essentially general file link errors, not necessarily all GPT configuration issues.
Another situation is easy to overlook: you are changing a GPT that has already received a lot of capabilities. Writing too long instructions, too many tools, and fighting each other can also make the file generation stage unstable. In this case, instead of adding rules to it, you should break down the "generate file" into separate clear instructions, such as forming a table and then exporting CSV, instead of requiring it to analyze, typeset, summarize, and export all at once.
So when you see Failed to get upload status, don't blame the browser first. The first thing is always to confirm if this GPT really has the ability to "generate downloadable files". Most of the time, the problem can be solved by turning the Code Interpreter on the right side and then reducing the output file.
