Kling 3 4K API: Kling's own tier and what Sume lists

Kling 3.0 supports 4K in Kling's own API, but Sume's kling-3 lists only 720p and 1080p, and its price has no resolution tier, so do not expect 4K from kling-3 on Sume. In the Sume catalog the model that lists 4K is gemini-omni-flash-1.1 (3 to 10 seconds, 16:9 or 9:16). For Kling in 4K, call Kling's API.

Kling's resolutions are from its capability map, updated 2026-05-19; Sume's are from Video generation and code, read 2026-09-29.

Which Kling models do 4K?

On the same map, Motion Control on Kling 3.0 does not support 4K.

What does Sume do with resolution on kling-3?

resolution is checked against the catalog (720p, 1080p), but in current code it is not passed on to the model, and the price is per second with only an audio on/off split. Treat it as a filter, not a size control.

How do I get 4K on Sume?

Use gemini-omni-flash-1.1 with resolution: "4K", or sume/auto, which the docs name as the 4K route. A 5-second 4K Omni clip reserves $1.88 before the agent fee.

curl -X POST https://api.sume.com/v1/videos \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: omni-4k-001" \
  -d '{
    "model": "gemini-omni-flash-1.1",
    "prompt": "Slow push-in on a ceramic cup, steam rising.",
    "resolution": "4K",
    "aspect_ratio": "16:9",
    "duration": 5
  }'