MiniMax H3 vs H3 Max for a 9-second clip: 480p and 768p

For a 9-second clip, MiniMax H3 (minimax-h3) costs $0.5625 at 480p and $0.6750 at 768p on Sume, and MiniMax H3 Max (minimax-h3-max, the faster 768p variant) costs $0.5625 at 480p and $0.90 at 768p.

Both accept 5 to 15 seconds. Their envelopes come from the video generation docs, read 2026-10-06: H3 is native 480p/768p (768p is first-class, not 720p), and H3 Max adds a 1080p option that is a latent refinement from native 768p.

How do the two compare at this length?

Prices are the provider list price times 1.25, computed from the rate card.

When is the cheaper one enough?

Use the cheaper model for storyboard passes and pick one for the final. Both do text-to-video; H3 Max also does first/last-frame image-to-video and reference-to-video with image, video and audio references.

curl -X POST "https://api.sume.com/v1/videos" \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: clip-minimax-h3-max-9s-001" \
  -d '{
    "model": "minimax-h3-max",
    "prompt": "A product on a desk, slow push-in, natural light",
    "duration": 9,
    "resolution": "768p",
    "aspect_ratio": "9:16"
  }'