Mochi 1 vs
Step-Video
A Mochi 1 vs Step-Video comparison — strengths and which one suits you in 2026. You can use both through Viralio, with an EU invoice.
Mochi 1 vs Step-Video — the short version
Mochi 1 (Genmo) stands out for realistic motion (open-source), while Step-Video (StepFun) stands out for detail on short clips. Both are AI video models in demand in 2026.
On Viralio you do not have to settle on a single international account — you get equivalent models in one studio in English, with an EU VAT invoice.
| Criterion | Mochi 1 | Step-Video |
|---|---|---|
| Maker | Genmo | StepFun |
| Strength | Realistic motion (open-source) | Detail on short clips |
| Type | AI Video | AI Video |
| Prompts in plain English (on Viralio) | ✓ | ✓ |
| No waitlist | ✓ EU invoice | ✓ EU invoice |
When to pick Mochi 1
Pick Mochi 1 when your priority is realistic motion (open-source).
When to pick Step-Video
Pick Step-Video when you need detail on short clips. Plenty of creators use them side by side.
On Viralio you test Mochi 1, Step-Video and the rest with the same credits, pick the winner for each project and pay in euros. You start free with 10 credits.
How to choose between the two
The right question is not “which is the best model” but “which is best for what I want right now”. If you need realistic motion (open-source), go with Mochi 1; if your priority is detail on short clips, pick Step-Video. On important projects, generate the same scene on both and compare — on Viralio it costs only a few credits.
- Mochi 1 = realistic motion (open-source). Step-Video = detail on short clips.
- You choose per project, not once and for all.
- You get both on one Viralio subscription, with an EU invoice.
- You test it free with 10 credits.
Viralio pricing — access to every AI model
One subscription opens every app and every model on Viralio. Automatic invoice, cancel any time. Start free, no card.
Pay annually and save up to ~40%. Teams & companies: the Business plan (from €40/seat) with a shared credit pool. See all the prices and the full comparison →