Is Utopai X on Sume? It is built on MiniMax H3, which Sume lists

No. Sume does not list Utopai X. Utopai X is a video model that Utopai Studios runs inside its own PAI production platform, and the studio says it is post-trained on MiniMax H3. Sume does list MiniMax H3 and MiniMax H3 Max, so those are the nearest models you can call today.

This post separates what the vendor states about Utopai X from what Sume's video catalog actually offers.

What Utopai says about Utopai X

The facts below come from Utopai's own Utopai X page, read 2026-10-10. The page does not state durations, resolutions or prices, so this post does not either.

What Sume lists instead

Sume's video generation docs list two MiniMax H3 ids. Both are reachable through the same asynchronous POST /v1/videos job. They are the base family Utopai says it started from, not Utopai's post-trained model, so output will differ.

How to try the H3 family today

Read the live catalog first, because limits differ per model, then submit a job. The request shape below is the one in the Sume docs.

curl "https://api.sume.com/v1/videos/models" \
  -H "Authorization: Bearer $SUME_API_KEY"

curl -X POST "https://api.sume.com/v1/videos" \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "minimax-h3-max",
    "prompt": "A rain-soaked street at night, neon reflecting on wet asphalt",
    "duration": 8,
    "resolution": "768p"
  }'

What you cannot get on Sume

If you need Utopai X specifically, use PAI. If you want the MiniMax H3 base through an API with job ids, webhooks and one wallet, the two rows above are the ones to test on your own prompts.

• Utopai X itself: it is not a Sume catalog id, so no Sume call reaches it.
• PAI's project features such as script and earlier-take memory: those belong to Utopai's platform; Sume's docs do not describe an equivalent.
• A guarantee that H3 output matches Utopai X quality: the vendor ranking applies to Utopai X, not to the base model.