Happy Horse 1.1
Happy Horse 1.1 is Alibaba's open-source video model and the top-ranked open model, now with sharper motion, consistency, and detail. Best for frontier quality with open weights.
The Spinoza Score
Reviewed by Kamran Arshad. See how we evaluate · Updated 2026-07-13.
- Type
- Video Model
- Category
- video generation
- Starts at
- Free
- Platforms
- Launched
- Jun 2026
- Last reviewed
- 2026-07-13
The best open-source video model, full stop. Elite quality you can actually run and own.
Happy Horse 1.1 (June 2026) refines Alibaba's breakout open model, and it leads the open text-to-video arena. The 1.1 update sharpens exactly what viewers notice first, motion, consistency, and fine detail, on top of 1080p output, multi-shot clips, native audio with multilingual lip-sync, and up to nine reference images. For builders and studios who want near-frontier quality with open weights and no lock-in, nothing else is close. The closed leaders (Seedance, Kling) still edge it on the very top end and audio polish.
Best for
- Builders wanting open weights
- Self-hosting and fine-tuning
- Top quality without lock-in
Not for
- The very top-end polish (see Veo)
- Non-technical, no-setup users
What it actually does
Open weights
Fully open-source: inspect, fine-tune, and self-host it.
Top of the open arena
Leads the open text-to-video rankings, ahead of other open models.
Sharper motion & detail (1.1)
The June 2026 update improves motion, consistency, and fine visual detail.
9-image reference
Guide a generation with up to nine reference images for control.
Native audio + lip-sync
Synchronized audio with multilingual lip-synced dialogue.
1080p, multi-shot
HD output with multiple shots in a single clip.
Composite of hands-on testing and editorial review — five dimensions, each rated 0–5 against the same published rubric for every tool in the category. How we score →
- Overall
- 3.8/5
- Motion & Realism
- 3.5/5
- Prompt Adherence
- 3.4/5
- Creative Control
- 3.7/5
- Audio & Sync
- 3.7/5
- Value
- 4.5/5
What it costs, by tier
Open source (free to self-host); also available via API partners like fal on usage-based pricing. Confirm current pricing.
Free to self-host under its license.
Usage-based via partners like fal.
Frequently Asked Questions
Is Happy Horse really open source?
Yes, Alibaba released open weights, code, and distilled variants, so you can self-host and fine-tune it.
What is Happy Horse best for?
Developers and studios who want near-frontier video quality with open weights and no vendor lock-in.
Is Happy Horse free?
It's free to self-host as open source; hosted API partners like fal charge usage-based pricing.
Happy Horse or Veo?
Happy Horse for openness and self-hosting; Veo for the highest closed-model polish and audio sync.
Ready to try Happy Horse?
Frontier-class video with open weights you can own.
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