Cheaper Gen.

Video model comparison

Veo 3.1 Fast vs Kling 3.0

Google's Veo 3.1 Fast and Kuaishou's Kling 3.0, side by side: price per second, resolution, clip length, audio and references — and when to choose which. Both run on one Cheaper Gen. API key.

Google
Up to −59%

Veo3.1 Fast

Veo 3.1 Fast

Veo 3.1 quality at a fraction of the price, with audio

from

$0.0413/s

Kuaishou
Up to −13%

Kling3.0

Kling 3.0

Kling's flagship video model — cinematic motion, native audio, up to 15 s

from

$0.0739/s

Price

Veo 3.1 Fast vs Kling 3.0: price per second

Live prices at the tiers both models offer, with audio where both can generate it. Official list prices are on each model's pricing page.

Veo 3.1 Fast and Kling 3.0 prices at shared tiers
TierVeo 3.1 FastKling 3.0Per clipCheaper
720pwith audio$0.0413/s$0.11/s$0.33 · $0.55
8 s · 5 s
Veo 3.1 Fast −63%
1080pwith audio$0.1056/s$0.1478/s$0.84 · $0.74
8 s · 5 s
Veo 3.1 Fast −29%
4K$0.264/s
with audio
$0.3685/s
silent
$2.11 · $1.84
8 s · 5 s
Veo 3.1 Fast −28%
Veo 3.1 Fast pricing →Cheap Veo 3.1 Fast API →Kling 3.0 pricing →Cheap Kling 3.0 API →

Specs

Side-by-side specifications

From each model's API parameters in our catalog.

Veo 3.1 Fast vs Kling 3.0 specifications
SpecVeo 3.1 FastKling 3.0
DeveloperGoogleKuaishou
ReleasedOct 15, 2025Feb 25, 2026
TasksText to video, Image to videoText to video, Image to video
Resolutions720p · 1080p · 4K720p · 1080p · 4K
Clip length4, 6, 8 s3–15 s
AudioOptional, billed at a higher rateOptional, billed at a higher rate
Image-to-videoFirst + last frameFirst + last frame
Reference inputs——
Aspect ratios2 (16:9, 9:16)3 (16:9, 9:16, 1:1)
Starting price$0.0413/s (720p + audio)$0.0739/s (720p)
Below official priceup to 59%up to 13%

Verdict

When to choose which

Each point below comes from the price and spec data above.

Choose Veo 3.1 Fast for

  • Lower price: $0.0413/s vs $0.11/s at 720p with audio (63% less).

Veo 3.1 Fast at a glance

  • Lower price — From cents per second
  • Native audio — Dialogue, effects, ambience
  • Up to 4K — 720p, 1080p and 4K
  • Frames — First & last frame control

Choose Kling 3.0 for

  • Longer clips: up to 15 s vs 8 s.
  • More aspect ratios: 3 vs 2.
  • Newer model (released February 25, 2026).

Kling 3.0 at a glance

  • Up to 4K — 720p, 1080p and native 4K
  • 3–15 seconds — Pay per second
  • Native audio — Optional synchronized sound
  • Frames — First & last frame control

Try both with the same prompt

Same API key and balance; only the endpoint changes. Failed generations are refunded.

POST /api/v1/run/google/veo-3.1-fast/text-to-video
POST /api/v1/run/kuaishou/kling-3.0/text-to-video
Veo 3.1 Fast in Studio Kling 3.0 in Studio

FAQ

Veo 3.1 Fast vs Kling 3.0 questions

Veo 3.1 Fast is cheaper at 3 of 3 shared tiers. 720p: Veo 3.1 Fast $0.0413/s, Kling 3.0 $0.11/s; 1080p: Veo 3.1 Fast $0.1056/s, Kling 3.0 $0.1478/s; 4K: Veo 3.1 Fast $0.264/s with audio, Kling 3.0 $0.3685/s silent. Prices are live and billed per second.

Veo 3.1 Fast: 720p, 1080p, 4K, 4, 6, 8 s per clip. Kling 3.0: 720p, 1080p, 4K, 3–15 s per clip.

Veo 3.1 Fast: Optional, billed at a higher rate. Kling 3.0: Optional, billed at a higher rate.

Yes. Both run through the same Cheaper Gen. API and balance: POST /v1/run/{endpoint} with the model's endpoint id, then poll or receive a webhook. Switching models means changing the endpoint and its input fields — no new account or SDK.

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All comparisons →All AI video APIs →Cheapest video APIs →

Veo 3.1 Fast is developed by Google; Kling 3.0 by Kuaishou. Cheaper Gen. provides API access to both through official upstream endpoints and does not own either model. Trademarks belong to their respective owners.