Kling, Luma, Veo or Sora: how to pick the right video model
Eight video models, one credit balance. A field guide to when each one wins — motion, realism, audio, speed — so you stop burning credits guessing.
Mira Vance
Creative Lead
greenbits routes to the best video models on the market — but "best" depends entirely on the shot. Here's the cheat sheet we use internally so you can spend credits with intent instead of trial and error.
Start with the question: text or image?
If you're starting from a written idea, you want a strong text-to-video model. If you already have a still you love — a Soul frame, a product shot — reach for an image-to-video model so the clip inherits that exact composition and identity.
Kling 2.0 — motion and action
Kling is the workhorse for sharp, physical motion: a runner mid-stride, fabric in wind, a car cornering. The Pro variant takes an image and animates it, which makes it the natural finisher after a Soul or Flux still.
Luma Ray 2 — smooth, dreamy camera work
Reach for Luma when the camera is the star — slow orbits, graceful pull-backs, atmospheric establishing shots. It trades a little raw crispness for a gorgeous sense of movement.
Veo 3 — realism with sound
Veo's standout is native audio: it generates a synced soundtrack alongside the picture, which is a genuine shortcut for social clips. Veo 3 Fast trades some fidelity for speed when you're iterating on a hook.
Sora 2 — coherence over long beats
Sora holds a scene together across more complex action and longer beats. When a shot has several things happening at once and you need them to stay consistent, it's the one to test first.
A cheap way to choose
Draft your concept on a fast, low-credit model first to lock composition and timing. Only once the idea is right do you re-run it on the premium model — you'll spend a fraction of the credits getting there.
The quick-reference table
- Action / physical motion → Kling 2.0
- Animate a still you already have → Kling 2.0 Pro (image-to-video)
- Cinematic camera moves → Luma Ray 2
- Need sound baked in → Veo 3
- Fast iteration on a hook → Veo 3 Fast
- Complex, multi-element scenes → Sora 2 / Sora 2 Pro
All of them bill from the same credit balance, so there's no commitment to any one provider — switch per shot. The fastest way to build intuition is to run the same prompt across two models and compare. Open the studio and try it.
Start creating with greenbits
Every model, one credit balance, one login. See what you can make in the next five minutes.