KuaishouHPC-AI TechnologyVideo model matchup
Kling 4.0 Flashvs.Open-Sora 2.0
Neither Kling 4.0 Flash nor Open-Sora 2.0 has an LMArena rating yet.
Kling 4.0 Flash
Open-Sora 2.0
Choose Kling 4.0 Flash for
No clear advantage
Choose Open-Sora 2.0 for
Where is the difference?
Bar length shows the gap: for ratings full width from 60 points, for price from four times as much, for clip length from 20 seconds. Solid means clearly ahead, hatched slightly ahead, a thin grey bar level.
All data side by side
The better value is bold. For ratings only when the gap is clear.
| Metric | Kling 4.0 Flash | Open-Sora 2.0 |
|---|---|---|
| Output | ||
| Resolution | 720p | 768 px (zusätzlich 256 px) |
| Longest clip | 20 s | n/a |
| Access | ||
| Weights | n/a | open |
| Parameters | n/a | 11B |
| Routes | web | local |
| Released | Sep 28, 2026 | Mar 12, 2025 |
| Status | availableRestricted web access for Ultra Yearly subscribers; no public API slug confirmed | available |
Prices: public API price of the documented standard configuration; resolution and sound can change it
Is there a better choice?
Text to video 1,516, Place 1 of 23. $0.51 per 5 s clip.
Kling 4.0 Flash vs. Gemini Omni 1.1 FlashSources and method
Show 2 sources and the method
Ratings come from the LMArena: people see two videos for the same prompt without knowing which model made them and pick the better one. Many such picks add up to a rating, higher is better. Text to video and image to video are separate lists and are never added together.
“Ahead” means one model stays clearly higher even with the rating’s uncertainty. “Slightly ahead” means its value is higher but the gap is not certain yet. Otherwise both count as level. Places count only the models of our comparison.
Prices and clip lengths come from the providers’ documentation. From a factor of 1.25 a model counts as cheaper or longer, below that as about the same.
- Kling 4.0 Flash, specifications, checked Nov 1, 2026
- Open-Sora 2.0, specifications, checked Nov 1, 2026
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