HappyHorse 1.0 is not public yet. Try Veo 4 and Kling AI 3.0 free on veo4.dev today.
Try FreeHappyHorse 1.0: Alibaba's Mystery #1 AI Video Model
Alibaba anonymously released HappyHorse 1.0 in April 2026 and it immediately claimed #1 on Artificial Analysis Video Arena — beating Veo 4 and Kling AI 3.0 overnight. Alibaba stock surged. No public access yet.
HappyHorse 1.0
Alibaba
HappyHorse 1.0 is a mystery AI video generation model anonymously released by Alibaba in April 2026. It immediately achieved the #1 position on the Artificial Analysis Video Arena leaderboard, surpassing Google Veo 4, Kling AI 3.0, and all other publicly known models. The model name, access method, and pricing remain unannounced.
HappyHorse 1.0 is fascinating but has no public access. While you wait, veo4.dev gives you immediate access to Google Veo 4 (the previous #1), Kling AI 3.0, Runway Gen-4.5, and more — all in one platform with free trial credits.
Best AI Video Models While HappyHorse 1.0 Is Unavailable
veo4.dev (Multi-Model)
Veo4 Platform
Access Google Veo 4, Kling AI 3.0, Runway Gen-4.5, and 3 more top models right now — no waitlist. When HappyHorse 1.0 gets a public API, it will likely appear here too.
Pros
- 6+ top models available today
- Free trial credits
- 4K cinematic output
- Starting at $9.9/month
- No waitlist
Cons
- HappyHorse 1.0 not yet integrated
- Requires subscription for full access
HappyHorse 1.0
Alibaba
The #1 ranked AI video model on Video Arena as of April 2026. Anonymously released by Alibaba. No public access yet.
Pros
- #1 on Artificial Analysis Video Arena
- Beats Veo 4 and Kling AI benchmarks
- Alibaba production infrastructure
Cons
- No public access announced
- Pricing unknown
- Availability date unknown
Google Veo 4
Google DeepMind
Previous #1 on Video Arena before HappyHorse. Best publicly available cinematic AI video with 4K and physics accuracy.
Pros
- Best available photorealism
- 4K with audio sync
- Available now on veo4.dev
Cons
- Now ranked below HappyHorse on Video Arena
Kling AI 3.0
Kuaishou
4K output, 25-second clips, native audio generation. Previously a top-3 Video Arena model before HappyHorse emerged.
Pros
- 4K with native audio
- 25-second multi-shot clips
- Available globally now
Cons
- Now ranked below HappyHorse
Runway Gen-4.5
Runway AI
Professional motion control and integrated audio. Built on NVIDIA Vera Rubin. Great for precise camera choreography.
Pros
- Precise motion control
- ElevenLabs audio integration
- Professional editing suite
Cons
- More expensive
- Below HappyHorse on benchmarks
HappyHorse 1.0 vs Top AI Video Models
| Feature | HappyHorse 1.0 | veo4.dev | Veo 4 | Kling AI 3.0 |
|---|---|---|---|---|
| Video Arena Rank | #1 (April 2026) | Multi-model | Previously #1 | Previously Top 3 |
| Public Access | Not Available | Yes | Yes | Yes |
| Max Resolution | Unknown | 4K | 4K | 4K |
| Native Audio | Unknown | Yes | Yes | Yes |
| Price/month | Unknown | From $9.9 | From $9.9 | From $8 |
Why Use veo4.dev While Waiting for HappyHorse 1.0
HappyHorse 1.0 is coming. Until then, every other top model is available on veo4.dev today.
Available Today
HappyHorse 1.0 has no public release date. veo4.dev gives you Veo 4 and Kling AI 3.0 with free trial credits right now.
The Previous #1 Models
Veo 4 and Kling AI 3.0 led the leaderboard before HappyHorse appeared. Access them plus 4 others on veo4.dev.
No Waitlist
HappyHorse 1.0 may require enterprise access when it launches. veo4.dev is open with free credits — start today.
Future-Ready
When Alibaba releases HappyHorse 1.0 via API, veo4.dev is positioned to integrate it alongside all other models.
HappyHorse 1.0 FAQ
What is HappyHorse 1.0?
HappyHorse 1.0 is Alibaba's mystery AI video generation model that appeared anonymously on the Artificial Analysis Video Arena benchmark in April 2026 and immediately took the #1 spot. Alibaba's stock surged confirming the connection. No public access or pricing has been announced.
How do I access HappyHorse 1.0?
As of April 2026, there is no public way to access HappyHorse 1.0. For AI video generation available today, veo4.dev provides the previously top-ranked models: Google Veo 4, Kling AI 3.0, and Runway Gen-4.5.
Why is it called HappyHorse?
The name HappyHorse 1.0 appears to be Alibaba's internal project codename, revealed when it appeared anonymously on the Video Arena benchmark. Alibaba has not officially commented on the name.
Will HappyHorse 1.0 be available on veo4.dev?
When Alibaba releases HappyHorse 1.0 with public API access, veo4.dev will work to integrate it. Until then, Google Veo 4 and Kling AI 3.0 are available with free trial credits.
Access Today's Top AI Video Models While Waiting for HappyHorse 1.0
Google Veo 4, Kling AI 3.0, Runway Gen-4.5, and more — available now from $9.9/month.
Start Free on veo4.dev