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# Omni references

Omni-reference models accept multiple reference types in a single generation - for example up to **9 images, 3 videos, and 3 audio clips** on supporting models. 

Use omni references for complex scenes: several characters, a product, a location, and a voice sample, all in one request.

Notes:

* Audio reference clips must be **under 15 seconds**.
* If you get a validation error with many references attached, reduce the count and retry - limits vary by model.