MiniMax H3, widely known as Hailuo 3.0, makes 2K clips with sound built in, and ships as an open-weight model. Seedance 2.5 is ByteDance's longer, reference-heavy model, built for a 30-second take in one pass. Both run on Morphic, so here is how they compare, clip for clip, and how to pick between them.
MiniMax H3 vs Seedance 2.5: the specs
Each maker's own published numbers. A blank cell means the maker hasn't published that spec.
| Feature | MiniMax H3 | Seedance 2.5 |
|---|---|---|
| Maker | MiniMax | ByteDance |
| Clip length | 5 to 15s per generation | Up to 30s single-shot |
| Resolution | Up to 2K (1440p short edge), 24fps | Up to 1080p native |
| Native audio | Stereo, with the picture | Native audio, 10+ languages |
| Reference inputs | Up to 12 (9 image, 3 video, 3 audio) | Up to 50 (30 image, 10 video, 10 audio) |
| Audio-only reference | Must travel with an image or video | A voice or music track can drive the shot |
| Edit an existing clip | Name one element to change | Region-level edit, source 4 to 30s |
| Extend an existing clip | Not published | Forward, backward, or bridging two clips |
| Open weights | Open base weights | Closed model |
| On Morphic | Available now | Available now |
Sample clips, side by side
The same brief run through both models, one category at a time, so you can judge the output rather than the spec sheet. Each clip carries its own audio, so unmute one to hear it.
One thing to keep in mind: the MiniMax H3 clips are 2K and the Seedance 2.5 sample clips here are 720p (the model now generates natively at 1080p), so some of H3's extra sharpness is the sample resolution, not the model.
Cinematic realism
Watch the moving camera over real terrain: whether parallax holds, light falls the right way, and fast foreground detail stays clean instead of smearing.
MiniMax H3 (2K)
Seedance 2.5 (720p)
Live-action performance
Watch the face at close range: skin and eyes reading as real, hands behaving, and features staying consistent as the head moves rather than drifting between frames.
MiniMax H3 (2K)
Seedance 2.5 (720p)
Anime and stylized looks
Watch how far each commits to the look: line consistency, clean color fills, and a character design that holds without the face morphing shot to shot.
MiniMax H3 (2K)
Seedance 2.5 (720p)
Product and commercial
Watch the close detail: honest material, straight lines that stay straight, and no warping on edges, logos, or reflections as the object turns.
MiniMax H3 (2K)
Seedance 2.5 (720p)
Which is better, MiniMax H3 or Seedance 2.5?
Choose MiniMax H3 if
- You want a finished 2K clip with sound. Stereo audio arrives with the picture, so a clip lands without a separate scoring or upscaling step.
- You revise instead of re-roll. Name the one element to change and the rest of the frame holds, which keeps a take you already like.
- You want an open-weight model. H3 ships open base weights, so it can be self-hosted and fine-tuned. Seedance 2.5 is closed.
Choose Seedance 2.5 if
- You need length in one take. Up to 30 seconds covers a full ad spot a few-second clip cannot, and an extend adds more to either end.
- You lean on references. Up to 50 inputs, including audio-only references for pacing and lip-sync, lock character and rhythm across a sequence.
- You localize. Native support for 10+ languages targets captions, titles, and versioning a scene across markets.
Run both models on Morphic
You do not have to pick once. Morphic is a complete AI video production workspace: multi-model generation on one roster, AI storyboarding on a shared Canvas, and a built-in timeline editor, with an agentic Copilot running the work between them.
- Compare on the Canvas. Run one brief through both models and line up the takes before spending another credit.
- Finish in one place. Cut the winner on the timeline, balance audio per clip, and burn on styled subtitles, with no export step between.
Both MiniMax H3 and Seedance 2.5 are on the Morphic roster now, so you can run either, or both, without leaving the workspace.
FAQs
They are shaped for different jobs. MiniMax H3, also called Hailuo 3.0, makes 5 to 15 second clips at up to 2K with native stereo audio in the same pass, and ships as an open-weight model.
Seedance 2.5 is ByteDance's next-generation model, built around a much longer single take of up to 30 seconds, with up to 50 references and native audio in 10+ languages. H3 leads on resolution-per-clip, audio, and openness; Seedance 2.5 leads on length and reference control.
Seedance 2.5, by a wide margin: up to 30 seconds of native single-shot video, extendable further, against MiniMax H3's 5 to 15 seconds per generation. H3 can still fit multiple shots inside one clip, so a short drama beat comes out in a single run, but for a full 30-second take in one pass, Seedance 2.5 is built for it.
Both generate sound with the picture rather than leaving a silent clip to score. MiniMax H3 outputs native stereo in the same pass.
Seedance 2.5 adds native support for 10+ languages and an audio-only reference that can drive pacing and lip-sync. For multilingual or audio-led work, Seedance 2.5 has the edge; for a sounded 2K clip, H3 delivers it.
For ad spots, Seedance 2.5's 30-second single take covers a full commercial in one generation, while MiniMax H3 suits fast, cheaper 2K product shots with sound already on them.
For anime and stylized work, both hold a look well: H3 leans on a reference to carry a design across shots, and Seedance 2.5 leans on its larger reference budget. The honest answer is to run the same brief through both on Morphic and compare, which is what the clips above show.
Yes. MiniMax ships H3, also called Hailuo 3.0, as an open-weight model with open base weights, so it can be self-hosted and fine-tuned in a way a closed model cannot. Seedance 2.5 is a closed model from ByteDance. If open weights matter to your stack, that is a clear point for H3.
Yes. Both are on Morphic's roster now: pick a model in the prompt bar, write the shot as a brief, attach any references, and generate.
Because every take renders onto the Canvas, you can run the same brief through MiniMax H3 and Seedance 2.5, compare them side by side, and cut the winner on the built-in timeline without leaving the workspace.