How to share a file or temporary link with ChatGPT

The recommended order for sharing a file with ChatGPT

1. Check for native file upload first. If attachments are available in the ChatGPT product, account, and conversation you are using—and the file meets the displayed requirements—native upload is usually more reliable.
2. Decide whether an external link is suitable. A temporary link only helps when the recipient or current workflow can open public internet links. Some models, sessions, networks, and organization policies do not allow this.
3. Create a short-lived link. Choose the file in EpheSend and set the shortest practical expiry. Add a password, download limit, or burn-after-read only when the receiving workflow can handle it.
4. Add context in the conversation. Paste the link together with the file type, the task, and the expected output. Do not send an unexplained link.
5. Revoke access when finished. Remove the link as soon as it is no longer needed, or let the selected expiry close it automatically.

What an external file link cannot bypass

• Whether file upload is available, and which types and sizes it accepts, depends on the ChatGPT product and interface you are actually using.
• A link that opens in a normal browser may still be inaccessible to ChatGPT, especially when it requires a password, permits one download, or expires quickly.
• EpheSend itself accepts up to 500,000,000 bytes per file (about 476.8 MiB) and five files per batch. It does not change ChatGPT’s own upload limits.
• If the model cannot read the link, use a native attachment, paste the necessary excerpt, or split the source into files that meet the product requirements.

Write a clearer file-analysis request

Whether you use an attachment or a link, tell ChatGPT what the file contains, what to focus on, and how the result should be formatted. A concrete task is more useful than a file name or link alone.

Official reference: OpenAI's current Work with files guidance notes that preview and review tools depend on the interface in use. This page therefore does not hard-code ChatGPT quotas or format limits; check the current product UI and official guidance.

Privacy and safety check before uploading

• Remove unnecessary personal information, secrets, account data, and medical or financial details. Do not upload sensitive files that cannot be safely minimized.
• Confirm that you are authorized to send the file to external services and follow your organization’s data-handling rules.
• If you add a password, make sure the real recipient can receive it separately. Automated tools often cannot complete an interactive password step.
• Set the shortest useful expiry. EpheSend share pages are excluded from search indexing, but anyone who receives a link may still download or forward the file.