Most comparisons of these three collapse into a spec sheet: parameter counts, resolution tables, feature checklists. None of it tells you which one to open for a given shot. We also do not have third-party benchmark data, and a vendor showcase is marketing, not evidence. So this compares them on the only two things you can check yourself before spending anything at all: what the clip looks like when it comes back, and what one run costs in credits.
What each model is actually good at
The difference shows up fastest on faces. Veo 3.1 holds a face together across a five to ten second clip and keeps the camera where you put it, so a request for a small, specific movement usually comes back as a small, specific movement. Sora 2 is the more willing of the two: hand it a described action and it will push further with it, which flatters an expressive subject and endangers a portrait, because a willing model also invents. Kling leads with the body. Weight, gesture, a physical action that reads on a phone screen at arm's length. Ask Kling for subtlety and you often get almost nothing; ask it for a movement and it commits to the movement, for better and worse. That difference is the whole decision, and it is visible in the first render rather than in any table.
| Model | Strength | Typical motion | Credit cost | When to pick it |
|---|---|---|---|---|
| Veo 3.1 | Photoreal light, stable faces | Small and controlled, honours camera notes | 300 | Portraits, talking heads, anything with a face in close-up |
| Sora 2 | Expressive subjects, longer beats | Larger and more deliberate, carries an action through | 60 | One short narrative beat, a subject doing two things in a clip |
| Kling | Body movement and weight | Fast and physical, big gestures, committed follow-through | 90 | Dance, sport, a product spin, anything where the body leads the frame |
Those credit numbers matter more than they look. On the $29 Basic plan, 3000 credits work out to roughly $0.0097 per credit, so one clip costs about $2.90 on Veo 3.1, $0.87 on Kling and $0.58 on Sora 2. Five times the price for one clip is a rounding error. Five times the price across a forty-clip month is a decision, and it is exactly the kind of quiet decision that turns a channel unprofitable. The trap is not the expensive model itself, it is opening the expensive model first, disliking the result, and paying twice for a shot the cheap model would have solved. Failed runs on the provider side come back as credits, so the retry you actually pay for is the artistic one: the clip that rendered fine and was not what you wanted.
How the prompt should change per model
- Veo 3.1: name the camera even when the answer is static, and keep the action small. One verb, one body part, one direction. Long paragraphs get averaged into mush, and the model is at its best when it has one instruction to obey.
- Sora 2: describe the sequence rather than the verb. It handles a beat with a beginning and an end better than a single instruction, so write the two or three things that happen, in order, and let it carry the subject through them.
- Kling: put the subject action in the first sentence and never bury it under style notes. It commits hard to whatever you name first, which is why a vague opening line returns a vague clip at 90 credits and why a specific one returns something you can use.
- All three: delete every sentence describing appearance. The uploaded image already fixed the colour, the light and the lens, and repeating them invites drift away from the frame you started with.
See the model page
Veo 3.1 also drives the text-to-video and image-to-video studios in the same account. The model page lists the modes it powers and what it is best at, so you can compare before you spend.
Pick by use case, not by ranking
| Use case | First choice | Why | Credits per attempt |
|---|---|---|---|
| Portrait or talking head | Veo 3.1 | Keeps the face stable and the camera still, so the clip reads as shot rather than generated | 300 |
| Product shot | Kling | The motion is the point. A rotate or a light sweep needs weight, and Kling supplies weight | 90 |
| Landscape or abstract | Sora 2, or Veo 3.1 when the light has to look photographed | No faces to break, so the cheapest model usually suffices. Pay for Veo only when the frame itself is the subject | 60 to 300 |
| Social short with a person moving | Kling, with Veo 3.1 as fallback | Body-led motion holds attention in a feed. Fall back to Veo when the face is in frame for most of the clip | 90 |
Compare Sora 2
Sora 2 is the option to reach for when the subject needs to perform rather than just move. The model page lists its available modes and the exact credit cost, so a 60-credit run is never a surprise after the fact.
Frequently asked questions
- Is Veo 3.1 better than Sora 2?
- Not in general. Veo 3.1 is the safer choice when a face fills the frame and the camera should stay put. Sora 2 is more expressive and handles a described sequence better, which helps when the subject needs to perform. Choose by shot, not by rank.
- Which is cheaper, Veo 3.1 or Kling?
- Kling at 90 credits per clip, Veo 3.1 at 300. On the $29 Basic plan, where a credit costs about $0.0097, that is roughly $0.87 versus $2.90 for the same clip length.
- Can I use the same prompt for all three models?
- You can, but you will be measuring prompt mismatch rather than model quality. Keep the same structure and change the two lines each model cares about: camera language for Veo 3.1, the action sequence for Sora 2, and the subject action in the first sentence for Kling.
- How do I compare them without wasting credits?
- Test on the cheapest model with a still image already uploaded, since the upload reduces how much the model has to invent. Only escalate when the motion is genuinely too small rather than when the prompt was too vague.
- Why is Sora 2 cheaper than Veo 3.1?
- It costs 60 credits against 300 for Veo 3.1, which is about $0.58 versus $2.90 on the Basic plan. What the extra buys on Veo is face stability and a camera that stays where you put it; for an expressive performance Sora 2 is both the cheaper and the more willing model.
Turn a still into a clip
Open the studio, upload an image, describe the motion in one line and pick a video model. The credit cost is shown before the job runs.