Cheaper Gen.

Video model comparison

Veo 3.1 vs Veo 3.1 Fast

Google's Veo 3.1 and Google's Veo 3.1 Fast, 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 −57%

Veo3.1

Veo 3.1

Google's cinematic video model with native audio, up to 4K

from

$0.1719/s

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

Price

Veo 3.1 vs Veo 3.1 Fast: price per second

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

Veo 3.1 and Veo 3.1 Fast prices at shared tiers
TierVeo 3.1Veo 3.1 FastPer clipCheaper
720pwith audio$0.1719/s$0.0413/s$1.38 · $0.33
8 s each
Veo 3.1 Fast −76%
1080pwith audio$0.352/s$0.1056/s$2.82 · $0.84
8 s each
Veo 3.1 Fast −70%
4Kwith audio$0.528/s$0.264/s$4.22 · $2.11
8 s each
Veo 3.1 Fast −50%
Veo 3.1 pricing →Cheap Veo 3.1 API →Veo 3.1 Fast pricing →Cheap Veo 3.1 Fast API →

Specs

Side-by-side specifications

From each model's API parameters in our catalog.

Veo 3.1 vs Veo 3.1 Fast specifications
SpecVeo 3.1Veo 3.1 Fast
DeveloperGoogleGoogle
ReleasedOct 15, 2025Oct 15, 2025
TasksText to video, Image to videoText to video, Image to video
Resolutions720p · 1080p · 4K720p · 1080p · 4K
Clip length4, 6, 8 s4, 6, 8 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)2 (16:9, 9:16)
Starting price$0.1719/s (720p + audio)$0.0413/s (720p + audio)
Below official priceup to 57%up to 59%

Verdict

When to choose which

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

Choose Veo 3.1 for

  • The same tasks at a similar price — pick by output style; try both in the Studio.

Veo 3.1 at a glance

  • Up to 4K — 720p, 1080p and 4K
  • Native audio — Dialogue, effects, ambience
  • 4 / 6 / 8 s — Pay per second
  • Frames — First & last frame control

Choose Veo 3.1 Fast for

  • Lower price: $0.0413/s vs $0.1719/s at 720p with audio (76% 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

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

FAQ

Veo 3.1 vs Veo 3.1 Fast questions

Veo 3.1 Fast is cheaper at 3 of 3 shared tiers. 720p: Veo 3.1 $0.1719/s, Veo 3.1 Fast $0.0413/s; 1080p: Veo 3.1 $0.352/s, Veo 3.1 Fast $0.1056/s; 4K: Veo 3.1 $0.528/s, Veo 3.1 Fast $0.264/s (with audio). Prices are live and billed per second.

Veo 3.1: 720p, 1080p, 4K, 4, 6, 8 s per clip. Veo 3.1 Fast: 720p, 1080p, 4K, 4, 6, 8 s per clip.

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

Keep comparing

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

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