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AI video model comparison

Kling 3.0 vs Runway Gen-4.5

Kling 3.0 is 38% cheaper (cheapest second: Kling 3.0 $0.19/s vs Runway Gen-4.5 $0.31/s). Kling 3.0 has the cheapest clip, longer clips and native audio. Runway Gen-4.5 has faster renders.

Head to head

2 of 4 models · prices from the live catalog,

Kling 3.0KuaishouhotTry it →
Runway Gen-4.5RunwayhotTry it →
Price
Cheapest second$0.19/s (best)$0.31/s
Per second at 720p$0.19/sNot offered
Per second at 1080p$0.25/sNot offered
Per second at 4K$0.63/sNot offered
Cheapest clip$0.58 (best)$0.61
A 5-second clip at 720p$0.95Not offered
A 10-second clip at 1080p$2.54Not offered
Speed and length
Render time~1–4 min~1–2 min (best)
Longest clip15s (best)10s
Clip lengths3–15s2–10s
Output
Top resolution4k—
Frames16:9 · 9:16 · 1:11280:720 · 720:1280 · 1584:672 · 1104:832 · 832:1104 · 960:960
SoundNative (best)—
Inputs
Takes1Text · 1 image1Text · 1 image
Reference imagesUp to 1Up to 1
NeedsA promptA prompt
What it does
Can doText → videoImage → videoText → videoImage → video
Good forImage-to-video · Motion control · UGC contentStudio workflows · VFX plates · Brand work
Settings you controlFrame · Audio · Length · Multi-shot · ResolutionContent moderation · Length · Frame · Seed

Same prompt, side by side

UGC selfie · the same prompt on every model

“A woman in her late twenties talks straight into her phone camera in a bright kitchen, handheld selfie framing, natural window light, she smiles and gestures mid-sentence, casual creator energy, no on-screen captions”
Same prompt
Kling 3.0

Runway Gen-4.5: not rendered yet

Product shot · the same prompt on every model

“Cinematic product shot: a matte black wireless earbud case turns slowly on a dark reflective surface, a single warm rim light sweeps across it, macro lens, shallow depth of field, slow push-in, plain unbranded case”
Same prompt
Kling 3.0

Runway Gen-4.5: not rendered yet

Motion & action · same subject, own prompts

Kling 3.0“A BMX rider launches off a dirt ramp, spins a full 360 in the air and lands clean, dust kicks up, low angle tracking shot, golden hour”
Runway Gen-4.5“Static wide of a night highway overpass, cars stream beneath as light trails with natural motion blur, city skyline behind”

Same face · same subject, own prompts

Kling 3.0“A woman in a yellow knit sweater and round glasses walks from a bright kitchen into a dim hallway and back toward camera, handheld follow, her face, hair and sweater stay identical the whole way”
Runway Gen-4.5“A man in a grey wool coat walks toward camera down a cobbled lane as the camera tracks backward, his face and coat hold steady the whole take, overcast light”

Which should you choose?

Choose Kling 3.0 if you want

  • a lower price per second
  • the cheapest clip
  • longer clips
  • native audio
  • image-to-video
  • motion control
Generate with Kling 3.0 →

Choose Runway Gen-4.5 if you want

  • faster renders
  • studio workflows
  • VFX plates
Generate with Runway Gen-4.5 →

More from each model

Kling 3.0

A woman in a yellow knit sweater and round glasses walks from a bright kitchen into a dim hallway and back toward camera, handheld follow, her face, hair and sweater stay identical the whole way
A chef in a white apron plates a dish while the camera orbits half a turn around the counter, his face and apron stay consistent through the move, warm restaurant light
A BMX rider launches off a dirt ramp, spins a full 360 in the air and lands clean, dust kicks up, low angle tracking shot, golden hour

Runway Gen-4.5

A cork pops from a bottle, foam rises and spills over the lip, high-speed look, studio black background
Slow dolly in on a woman standing at a rain-streaked window, her reflection sharpens as the camera closes, cool daylight, locked vertical framing
A man in a grey wool coat walks toward camera down a cobbled lane as the camera tracks backward, his face and coat hold steady the whole take, overcast light
Static wide of a night highway overpass, cars stream beneath as light trails with natural motion blur, city skyline behind
Handheld two-shot of a glassblower and an apprentice at a furnace, the camera steps around them as the molten glass glows, faces and aprons consistent through the move

Compare with others

Kling 3.0 vs …

Runway Gen-4.5 vs …

← All video models, compared

How we compare

  • Prices come from the live catalog at the pay-as-you-go rate. The quote before you generate is binding. Plans and packs
  • Render times are the catalog’s own estimate for one render.
  • Every clip and image on this page was rendered on OpenClips.

Questions

Kling 3.0 vs Runway Gen-4.5: questions

Kling 3.0 costs the least here (cheapest second). Kling 3.0: $0.19/s. Runway Gen-4.5: $0.31/s. Prices are at the pay-as-you-go rate. The quote before you generate is binding.

Runway Gen-4.5 is the fastest here. Kling 3.0 takes ~1–4 min. Runway Gen-4.5 takes ~1–2 min.

Kling 3.0 and Runway Gen-4.5 take a still as the first frame or a reference.

Kling 3.0 makes up to 15 seconds. Runway Gen-4.5 makes up to 10 seconds.

Kling 3.0 renders native audio with the picture. Runway Gen-4.5: silent.