Encountering the "Couldn't apply AI background" error is usually due to hitting the daily usage limit for this specific feature or a temporary processing failure. The AI background removal requires significant server resources to analyze your video frame by frame.
CapCut Online
Server Load & Internet
- The Web version relies entirely on server-side processing for AI features.
- "Couldn't apply" might mean the server request timed out due to slow internet or high traffic.
- Solution: Refresh the browser page and try again. Ensure you have a stable internet connection.
CapCut Desktop (Windows / macOS)
- 1
- Feature Limitation
- Similar to the mobile version, the desktop app imposes a daily cap on AI-heavy processes to maintain app stability.
- Solution: If you cannot use it today, we suggest you try again tomorrow.
- 2
- Hardware Acceleration
- On a PC, this error can sometimes occur if your graphics drivers are outdated.
- Solution: Update your GPU drivers and restart the CapCut app.
CapCut Mobile App (iOS / Android)
- 1
- Daily Usage Limit
- Currently, the AI Background function can be used up to 50 times per day.
- If you see this error after heavy usage, you have likely reached this limit.
- Solution: Wait until the next day to continue using the feature. The counter resets automatically after 24 hours.
- 2
- Check Video Quality
- If you haven't reached the limit, the AI might fail to detect the subject.
- Ensure your video has clear contrast between the subject and the background (e.g., a person against a solid green or plain wall works best)
General Troubleshooting Steps
If you believe you haven't exceeded the limit, please try these steps:
- Check the Clip: Make sure the video clip is selected on the timeline. The AI feature won't work if no clip is active.
- Restart the App: Close and reopen CapCut to clear any temporary cache errors.
- Update the App: Ensure you are using the latest version of CapCut, as older versions may have bugs.
We are constantly optimizing and improving the related functions to increase efficiency. Please forgive any inconvenience caused. Thanks for your understanding and support.