GuidesModelsComparison
Choosing an AI video model: Seedance, Veo, Kling or Runway
OPSCENE teamOctober 1, 2026 2 min read
Pick Veo 3 for cinematic camera moves and native audio, Kling 2.5 for the strongest character consistency, Seedance 2.5 for fast/cheap high-volume variants, and Runway Gen-4 for restyling or extending real footage — not one model for everything. OPSCENE puts all four behind one credit wallet specifically so you can switch per shot instead of committing to one model for a whole project.
The four models, side by side
| Model | Best for | Max duration | Native audio | Cost |
|---|---|---|---|---|
| Seedance 2.5 (ByteDance) | Fast turnaround, high-volume social/ad variants | 10s | Yes | 10 credits / 5s |
| Veo 3 (Google DeepMind) | Cinematic camera moves, physics that reads as really shot | 8s | Yes | 16 credits / 5s |
| Kling 2.5 (Kuaishou) | Character consistency, complex physical motion (hair, fabric, running) | 10s | No | 14 credits / 5s |
| Runway Gen-4 (Runway) | Video-to-video: restyle real footage, swap an element, extend a shot | 6s | No | 18 credits / 5s |
When to reach for each one
Veo 3 is the default for anything that needs to feel like it was actually shot with a camera — dolly, crane, handheld — with audio generated in sync rather than layered on after. It's also the only one in the lineup that goes to 4K.
Kling 2.5 is image-to-video only, and that constraint is exactly why it's strongest at holding a character's face and proportions steady, and handling motion (running, fabric, hair) with fewer artifacts than the others. If a shot's whole job is "make sure this character looks right," start here.
Seedance 2.5 is the value pick — cheapest per clip, fast, native audio, and strong enough motion coherence for most social and ad work. Use it when you need many variants of the same idea and don't need Veo-level camera realism on every single one.
Runway Gen-4 is the odd one out: it's the only model built for video-to-video, not text/image-to-video. Reach for it when you're restyling a real plate, swapping one element in an existing shot, or extending a shot's length — not for generating from scratch.
Mixing models in one project
Nothing stops a single project from using all four — a Kling shot for a close character moment, a Veo shot for the wide establishing move, Seedance for the cutaways. The Board and Timeline don't care which model produced a take; cost and model are logged per take either way, so you can always see what generated what.
