15 May, 2026

YouTube Data API large-file upload tested: 216 MB succeeds, 257 MB hangs—threshold around 220-250 MB

Two 5/13 uploads via YouTube Data API: 216 MB legal MCP demo succeeded, 257 MB AI job-search clip hung indefinitely. Same googleapiclient resumable upload pipeline. The difference is file size and resolution. The practical threshold sits around 220-250 MB.

This post has been merged into Your Automated Video Pipeline Is Silently Dropping Work. All of the original content lives there now, and that’s the only copy that gets updated.

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