Official documentation
Uploading files and audio to ChatGPT
OpenAI Help Center (archived copy), 2026
Read the originalRead on October 17, 2026
- What it is
- OpenAI's help article on uploading files and audio to ChatGPT. It gives the size limit for audio files, says which plans can upload audio, and notes that very long recordings may time out.
- How much weight it carries
- Official OpenAI documentation, read from an archived copy because the live page loads its text with JavaScript. The article says availability varies by workspace, region, client version and model, so check it before relying on a limit.
Facts taken from this source
- OpenAI's help article says audio files uploaded to ChatGPT can be up to 512 MB.
“Audio files can be up to 512 MB.” (Audio upload and processing limits)
- OpenAI says audio uploads in ChatGPT are available with paid subscriptions and workspaces, including Enterprise.
“Audio uploads are available with paid ChatGPT subscriptions and workspaces, including Enterprise.” (Audio upload and processing limits)
- OpenAI says processing of long audio uploads is best-effort, and that very long recordings may time out.
“Processing is best-effort, and very long recordings may time out.” (Audio upload and processing limits)
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