The model to use when a real person's face is in the shot.
Kling is the video model from Kuaishou's Kling AI, and one of the most widely used video models in the world. Its reputation rests on one thing in particular: it handles human faces and bodies better than its competitors, holding identity steady through movement instead of letting features drift frame to frame.
That makes it the default here for anything built on a photo of a person. Portrait animation, dance clips, talking-head style footage and aging or de-aging effects all come out more believable on Kling than on models tuned mainly for scenery.
It supports both text to video and image to video, renders 16:9, 9:16 and 1:1, and sits in the middle of the price range. It does not generate audio: clips come back silent.
What Kling is best at
Animating a photo of a real person
Faces that must stay recognisable through motion
Dance, movement and gesture
Square output, which Gemini Omni cannot do
Faces hold up Identity stays stable across the clip, which is the hardest part of animating a real person and the main reason to pick this model.
Human movement Limbs, gait and gesture behave plausibly instead of sliding or duplicating.
Image to video Takes your photo as the start frame and builds motion from it, rather than reinterpreting the scene.
All three aspect ratios 16:9, 9:16 and 1:1, so it covers square social placements the Google tiers cannot.
Where Kling falls short
No audio. Clips are silent and need a separate sound pass.
Clip lengths map onto the provider's own 5 and 10 second tiers, so a 4 or 8 second request is approximate.
Mid-priced, so it is more expensive than Minimax for simple scenery shots where its face strength is wasted.
Fast, complex action still degrades, as it does on every model here.
Kling specifications
Provider: Kling AI
Model ID: kling-video/v3/standard
Routed via: fal.ai
Audio: No
Clip length: 4 or 8 seconds
Aspect ratios: 16:9, 9:16, 1:1
Provider model ID: fal-ai/kling-video/v3/standard
Routed via: fal.ai
Aspect ratios: 16:9, 9:16, 1:1
Clip lengths: 4, 8 seconds
What you can do with Kling on this page
Animate a portrait The job Kling is best at. Upload a photo of a person and give it one clear motion.
Dance and movement Full-body motion from a photo, where limbs and proportions have to survive.
Text to video A shot from a description, with Kling's strength on people carried over.
Prompts that work on Kling
One motion, named, and nothing else
The person smiles and turns their head slightly towards camera. No other movement. Face, hair and clothing unchanged.
Kling holds identity when it has one thing to do. Stacking motions is what produces the drifting-face effect people blame on the model.
Say what must not change
Gentle wind in the hair. The face, features and proportions stay exactly as in the photo. No warping, no morphing.
Explicit negative constraints are the single most effective trick for photo animation on this model.
Frame the body you want
Full body in frame with headroom and floor visible. The person dances simple two-step moves with natural weight shifts.
If limbs leave the frame mid-motion the model has to invent them, and that is where movement breaks down.
What Kling costs
Cost on Prompt Reverse, 4 second clip: 35 AI Credits, 8 second clip: 70 AI Credits. AI Credits come from a one-time credit pack and never expire, with no subscription and no separate provider account.
Kling vs the other models
Gemini Omni: Step up for native audio and the highest motion quality on non-face shots.
Minimax Hailuo 02: Switch for cheaper clips when no face is involved.
Luma Ray 2: Switch when the camera move matters more than the subject.
Kling 3.0 Image: The matching still-image model. Generate a frame, then animate it here.
Kling is the video generation model from Kuaishou's Kling AI. On Prompt Reverse it runs through fal.ai as Kling 3.0 Standard, for both text to video and image to video.
Why is Kling the best model for faces?
It holds a subject's identity steady through movement better than models tuned mainly for scenery, so an animated photo still looks like the same person at the end of the clip.
Does Kling generate sound?
No. Kling clips come back silent. Gemini Omni and Omni Fast are the models here that generate audio.
Can Kling make square video?
Yes, it supports 16:9, 9:16 and 1:1, which is one reason to pick it over the Google tiers for square social placements.
How long can a Kling clip be?
4 or 8 seconds on this platform, mapped onto the provider's own 5 and 10 second tiers, so the final length is approximate.