Leonardo.ai Generation Failed or Stuck

How to fix it

Try these in order — the most common fix is first.

1. 1. Basic checks

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   1. Reload in Google Chrome or an incognito window
   2. Check the token counter and the cost on the generate button
   3. Reword the prompt in case a filter blocked it
   Did this fix it? Yes No

2. 2. Get help

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   1. Ask in the #image-help channel on Discord
   2. Use the chat bubble in the web app (choose Talk to a human)
   3. Email support@leonardo.ai; the token FAQ says refunds for failed generations go through Contact Support
   Did this fix it? Yes No

3. 3. API polling

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   1. Get a Single Generation returns 200 with an empty generated_images array while in progress
   2. Wait until generations_by_pk.status is COMPLETE, or set a webhook callback
   Did this fix it? Yes No

Symptoms

An image or video generation never finishes, errors out, or tokens are spent without a result.

Why it happens

• Network or browser problem (see ERR_CONNECTION_TIMED_OUT guide)
• Out of tokens or the cost exceeded your balance
• Prompt blocked by moderation
• On the API, results are returned empty until the generation status is COMPLETE

This guide also covers

• leonardo ai generation failed
• leonardo ai stuck generating
• leonardo ai not generating images
• leonardo ai tokens used failed generation

The same problem in other apps

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• Leonardo.ai ERR_CONNECTION_TIMED_OUT Error
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