lowpoly retires Oct 30, 2026. Please switch models before these dates to avoid request errors.

Asset Retention

Asset Retention is the amount of time that Meshy retains your generated assets.

Please note that any models generated through our API will only be retained for a maximum of 3 days.

After this period, the models will be automatically deleted from our servers.

If you're not an Enterprise customer, we kindly ask for your understanding and recommend downloading and storing your models locally if you need them for a longer duration.

Enterprise customers can retain their models indefinitely.

Download URLs are signed

The URLs in a task's model_urls, texture_urls and thumbnail_url point at assets.meshy.ai and carry a signature (?Expires=…&Signature=…). A URL stops working at the task's expires_at, and fetching the task again returns the same URL with the same expiry, so:

  • Download the files as soon as the task reaches SUCCEEDED, and keep your own copy if you need the model for longer.
  • Do not store a download URL and resend it to Meshy later as model_url (for example to Analyze Printability, Repair Printability or Remesh): the request fails with 400 failed to download model file once the signature has expired. While the source task is still retained, reference it by input_task_id; after that the task returns 404 Task not found, so send your own stored copy instead.