✳ ANSWER · DIRECT
Why is my video too large for TikTok?
TikTok in-app upload limit is 4 GB. Reduce bitrate to ~12 Mbps for 1080p, or trim duration. Verify your file with /tools/validate - it shows the file size in MB and recommended bitrate per platform.
Detail
TikTok accepts MP4 with up to 4 GB in-app (10 GB via API). If your file exceeds 4 GB, the in-app upload will fail. Re-encode at ~12 Mbps for 1080p to bring size down while keeping quality.
Validate your file against the target platform before you ship.
Automate this in Koldflux