Model comparison
Sora vs Veo vs Kling: the real numbers.
Resolution, clip length, audio support, and cost per clip for all three, pulled from the model catalog inside King AI. No marketing adjectives, and you can run all three on the same prompt in one app.
The table
Every spec, side by side.
Costs are shown in King AI credits with the approximate US dollar value. One credit is about $0.30.
| Model | Max resolution | Clip length | Audio | Cost per 5s | Cost per 8s |
|---|---|---|---|---|---|
| Veo 3.1 | 1080p | 4–8s | Yes | 20 credits (~$6.00) | 32 credits (~$9.60) |
| Veo 3.1 4K | 4K | 4–8s | Yes | 30 credits (~$9.00) | 48 credits (~$14.40) |
| Veo 3.1 Fast | 1080p | 4–8s | Yes | 7.5 credits (~$2.25) | 12 credits (~$3.60) |
| Sora 2 Pro | 1080p | 4–12s | Yes | 25 credits (~$7.50) | 40 credits (~$12.00) |
| Sora 2 | 720p | 4–12s | Yes | 5 credits (~$1.50) | 8 credits (~$2.40) |
| Kling V3 Pro | 1080p | 3–15s | Yes | 8.4 credits (~$2.52) | 13.4 credits (~$4.02) |
| Kling V3 Standard | 1080p | 3–15s | Yes | 6.3 credits (~$1.89) | 10.1 credits (~$3.03) |
How to choose
Pick by the job, not the brand.
Choose Veo 3.1 when prompt adherence matters most and you need 4K. It is the most expensive per second of the three, so use the Fast variant while you iterate and the 4K variant for the final render.
Choose Sora 2 Pro when you want a longer single take. It supports clips up to 12 seconds, and King AI removes the invite requirement that limits Sora elsewhere.
Choose Kling V3 Pro when you are producing volume. It is the cheapest of the three per second, supports up to 15 seconds, and holds human motion together well.
Or run all three. Multi-model generation in King AI puts one prompt through several engines at once. For the price of one extra render you stop guessing.
FAQ
Sora, Veo and Kling, answered.
Which is better: Sora 2 Pro, Veo 3.1, or Kling V3 Pro?
They win on different things. Veo 3.1 has the strongest prompt adherence and offers a 4K variant. Sora 2 Pro handles longer single takes at up to 12 seconds. Kling V3 Pro is the cheapest of the three per second and supports clip lengths up to 15 seconds. King AI runs all three, so you can test the same prompt on each rather than committing to one.
Do all three generate audio?
Yes. Veo 3.1, Sora 2 Pro, and Kling V3 Pro all generate native audio alongside the video in King AI.
Can I use Sora 2 Pro without an invite?
Yes. King AI provides access to Sora 2 Pro through its model catalog, so you do not need a separate OpenAI Sora invite or a US-only account. Download King AI, select Sora 2 Pro, and generate.
Which is cheapest?
Per second of output, Kling V3 Pro is the least expensive of the three: a 5-second clip costs 8.4 credits (~$2.52), against 20 credits (~$6.00) for Veo 3.1 and 25 credits (~$7.50) for Sora 2 Pro. Kling V3 Standard is cheaper still at 6.3 credits (~$1.89).
Can I run all three on the same prompt?
Yes. King AI supports multi-model generation, which sends one prompt to several models at once and shows the results side by side. It is the fastest way to find out which model suits your subject.
Which one should I start with?
Start with Kling V3 Pro or Veo 3.1 Fast while you are iterating on a prompt, because they cost the least per attempt. Once the prompt is right, re-run the winner on Veo 3.1 4K for the final export.
Keep exploring
Go deeper on each model.
Try all three
Stop reading comparisons. Run the test.
Download King AI free and put one prompt through Veo 3.1, Sora 2 Pro and Kling V3 Pro at once.