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AI video model comparison

Runway Gen-4.5 vs Veo 3.1 Fast

Runway Gen-4.5 is 20% cheaper (cheapest second: Runway Gen-4.5 $0.31/s vs Veo 3.1 Fast $0.38/s). Runway Gen-4.5 has the cheapest clip, faster renders and longer clips. Veo 3.1 Fast has more reference images and native audio.

Head to head

2 of 4 models · prices from the live catalog,

Runway Gen-4.5RunwayhotTry it →
Veo 3.1 FastGoogle DeepMindTry it →
Price
Cheapest second$0.31/s (best)$0.38/s
Per second at 720pNot offered$0.38/s
Per second at 1080pNot offered$0.38/s
Cheapest clip$0.61 (best)$1.54
A 5-second clip at 720pNot offeredNot offered
A 10-second clip at 1080pNot offeredNot offered
Speed and length
Render time~1–2 min (best)~1–3 min
Longest clip10s (best)8s
Clip lengths2–10s4–8s
Output
Top resolution—1080p
Frames1280:720 · 720:1280 · 1584:672 · 1104:832 · 832:1104 · 960:96016:9 · 9:16
Sound—Native (best)
Inputs
Takes1Text · 1 image3Text · 3 images
Reference imagesUp to 1Up to 3 (best)
NeedsA promptA prompt
What it does
Can doText → videoImage → videoText → videoImage → videoMulti-reference
Good forStudio workflows · VFX plates · Brand workCinematic look · Native audio · Dialogue scenes
Settings you controlContent moderation · Length · Frame · SeedFrame · Length · Audio · Negative prompt · People · Reference mode · Resolution · Seed

Same prompt, side by side

No category has a render from two of these models yet. Each model’s own renders are further down.

Which should you choose?

Choose Runway Gen-4.5 if you want

  • a lower price per second
  • the cheapest clip
  • faster renders
  • longer clips
  • studio workflows
  • VFX plates
Generate with Runway Gen-4.5 →

Choose Veo 3.1 Fast if you want

  • more reference images
  • native audio
  • multi-reference, which the other cannot do
  • cinematic look
Generate with Veo 3.1 Fast →

More from each model

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

Runway Gen-4.5 vs …

Veo 3.1 Fast 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

Runway Gen-4.5 vs Veo 3.1 Fast: questions

Runway Gen-4.5 costs the least here (cheapest second). Runway Gen-4.5: $0.31/s. Veo 3.1 Fast: $0.38/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. Runway Gen-4.5 takes ~1–2 min. Veo 3.1 Fast takes ~1–3 min.

Runway Gen-4.5 and Veo 3.1 Fast take a still as the first frame or a reference.

Runway Gen-4.5 makes up to 10 seconds. Veo 3.1 Fast makes up to 8 seconds.

Veo 3.1 Fast renders native audio with the picture. Runway Gen-4.5: silent.