AI Video Model Comparison
How Happy Horse 1.0 stacks up against the leading models of 2026.
Specifications
| Feature | Happy Horse 1.0 | Seedance 2.0 | LTX 2.3 | Kling 2.0 | OVI 1.1 |
|---|---|---|---|---|---|
| Developer | Happy Horse Team (Sand.ai) | ByteDance Seed | Lightricks | Kuaishou | Character AI & Yale |
| Parameters | ~15B | Undisclosed | ~22B | Undisclosed | ~11B |
| Inputs | Text / Image | Text / Image / Audio / Video | Text / Image / Video / Audio | Text / Image | Text (Image optional) |
| License | Open Source (Commercial) | Proprietary | Apache 2.0 | Proprietary | Apache 2.0 |
| Audio Gen | Yes | Yes | Yes | No | No |
| Lip-Sync | 7 languages | 5+ languages | 5 languages | Limited | English only |
| Open Source | Yes | No | Yes | No | Yes |
| Speed | 38s for 5s 1080p (H100) | ~45s for 5s 1080p | ~50s for 5s 1080p | ~60s for 5s 1080p | ~30s for 5s 1080p |
Benchmark Scores
Based on 2,000 human-rated comparisons.
| Metric | Happy Horse 1.0 | Seedance 2.0 | LTX 2.3 | Kling 2.0 | OVI 1.1 |
|---|---|---|---|---|---|
| Visual Quality ↑ | 4.8 | 4.75 | 4.76 | 4.55 | 4.73 |
| Text Alignment ↑ | 4.18 | 4.15 | 4.12 | 4 | 4.1 |
| Physical Realism ↑ | 4.52 | 4.6 | 4.56 | 4.35 | 4.41 |
| WER (%) ↓ | 14.6% | 18.5% | 19.23% | 35% | 40.45% |
Head-to-Head Video Samples
Same prompt, different models — judge the quality yourself.
Prompt #1 Kid holds out the rest of her cookie, smiles, says "Love you mommy." Cookie offering, sweet smile, little voice.
Happy Horse 1.0
Kling 2.6 Pro
Prompt #2 A cobblestone street after rain, looking dark and glossy, reflecting the yellow streetlamps perfectly.
Happy Horse 1.0
LTX 2.3 Pro
Prompt #3 A candid, handheld camera shot follows a young woman bundled in a thick, charcoal wool coat, speed-walking hunched over down a slushy Manhattan sidewalk at 7:30 AM. Her breath plumes in thick white clouds against the freezing grey air, and her nose is bright red from the cold.
Happy Horse 1.0
Veo 3.1 Lite
Prompt #4 A candle flame in a sealed jar slowly consuming the available oxygen. The flame shrinks progressively over 60 seconds, changing color from yellow to orange to a dim blue before extinguishing entirely.
Happy Horse 1.0
Veo 3.1 Lite
Prompt #5 A goldfish bowl creating a fisheye lens effect on the room behind it. The fish swims obliviously while the distorted room shows a birthday party in progress. A child's face approaches the bowl to look at the fish, becoming enormous and warped in the curved glass.
Happy Horse 1.0
Veo 3.1 Lite
Detailed Comparisons
Happy Horse vs Seedance 2.0
Happy Horse leads on visual quality and lip-sync accuracy, while Seedance excels in physical realism and multi-character scenes. Happy Horse wins for open-source advocates; Seedance for production-ready commercial use.
Read comparison →Happy Horse vs Kling 2.0
Happy Horse significantly outperforms Kling across all benchmarks. Kling's advantages are accessibility (web UI, no GPU needed) and long-form video support. Happy Horse is the clear technical leader.
Read comparison →Happy Horse vs LTX 2.3
The closest competition. Happy Horse edges out on visual quality and lip-sync while being smaller and faster. LTX has a larger model, more input types, and a more mature ecosystem. Both are excellent open-source choices.
Read comparison →Happy Horse vs OVI 1.1
Happy Horse dominates across all metrics, especially lip-sync (14.6% vs 40.45% WER). OVI's only advantage is smaller size for easier deployment. For quality, Happy Horse is the clear winner.
Read comparison →