Clear CortexVeo 3.1 Fast
Google's Veo at the fast tier — 4, 6 or 8 seconds, up to 4K.
Generate video with Veo 3.1 Fast at 720p, 1080p or 4K in 4, 6 or 8 seconds, with generated audio and first/last-frame control. Half Veo 3.1’s per-second rate.
Generate with Veo 3.1 FastPay per clip. No seat, no subscription.
What it accepts
Read straight off the generator's own model registry, so this page and the thing that runs your prompt can never disagree.
- Model
- google/veo-3.1-fast
- Clip length
- 4s · 6s · 8s
- Resolutions
- 720p · 1080p · 4K
- Aspect ratios
- 2 — 16:9, 9:16
- Frame control
- first and last frame
- Audio
- generated with the clip
- Reference images
- not supported on this model
- Billed
- per second of video
What Veo 3.1 Fast is for
- Iterating on a Veo shot: it is billed at half Veo 3.1's per-second rate without audio, and under a third of it with audio on.
- Clips with sound, generated in the same pass as the picture rather than laid over it afterwards.
- Sticking to 720p to keep a long session cheap — OpenRouter prices 720p below its other sizes on this model, and 4K well above them.
- Vertical and widescreen social cuts: 16:9 and 9:16 at 4, 6 or 8 seconds.
When not to use it
Veo stops at 8 seconds and shoots only 16:9 or 9:16. For a fifteen-second clip, or a square one, use Kling 3.0 Standard.
Kling 3.0 StandardEvery video model on Clear Cortex
One account, one pot of credit, all 7. Switch model between clips without losing your prompt.
| Model | Maker | Max res | Clip length | Ratios | Refs | Billed |
|---|---|---|---|---|---|---|
| Seedance 2.0 Mini | ByteDance | 720p | 4–15s | 7 | 4 | per video token |
| Seedance 2.0 | ByteDance | 4K | 4–15s | 7 | 4 | per video token |
| Kling 3.0 Standard | Kuaishou | 720p | 3–15s | 3 | 0 | per second of video |
| Kling 3.0 Pro | Kuaishou | 720p | 3–15s | 3 | 0 | per second of video |
| Veo 3.1 Fast | 4K | 4–8s | 2 | 0 | per second of video | |
| Veo 3.1 | 4K | 4–8s | 2 | 0 | per second of video | |
| Hailuo 3 | MiniMax | 2K | 5–15s | 6 | 0 | per second of video |
All seven take a first frame and a last frame, and all seven can generate audio with the clip, so neither is a column. “Clip length” is the span the model accepts — Veo takes only 4, 6 or 8 seconds inside its range, the rest take every whole second. “Billed” is the unit the provider charges in: a per-second model's cost is settled before the job runs, a per-token model's moves with the resolution you pick as well as the length.
Try Veo 3.1 Fast now
One login, one invoice, 7 video models. You pay for the clips you make, not for a seat you might not use.
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