Veo 3.1 Fast: Google AI Video with Native Audio

Veo 3.1 Fast is Google's AI video generation model, available on Flovaly for both text-to-video and image-to-video at 45 credits per generation. Its distinguishing trait in the line-up is audio: clips are generated with sound rather than arriving silent, on top of the fast cinematic camera movement the Veo family is known for.

What is Veo 3.1 Fast?

Veo is Google's family of video generation models, and 3.1 Fast is the tier Flovaly runs. Publicly, the Veo line is positioned as a cinematic model — confident camera moves, coherent scenes — with native audio generation built in. On Flovaly it is registered for fast cinematic camera moves with audio, and it works from either a text prompt or a start image.

That audio point is worth dwelling on. Every other video model in Flovaly's picker renders silent footage that you would voice or score afterwards. Veo 3.1 Fast generates the soundtrack — ambience, movement, delivery — as part of the clip itself.

What it's best at

On Flovaly, Veo 3.1 Fast is the model we recommend for:

• Clips that need sound on arrival — street ambience, product foley, atmosphere that would otherwise mean a sound-design pass.
• Motion-forward B-roll — sweeping or fast camera moves around a subject, where energy is the point.
• Cinematic cutaways — polished shots to intercut with UGC-style footage, with the audio bed already in place.
• Animating stills with atmosphere — it accepts a start image, so a product shot can become a moving, sounding scene.

One honest caveat: the audio is generated from your prompt, not from a script you control word-for-word. Treat it as atmosphere and delivery rather than a guaranteed word-perfect read. For scripted speech, Flovaly's Talking Actors and Re-voice modes are the purpose-built tools.

How to use Veo 3.1 Fast on Flovaly

1. Open the Studio and click the Video tab in the composer mode row.
2. Click the model pill in the composer footer and pick Veo 3.1 Fast.
3. Write the shot as a prompt — and because this model generates audio, describe what the scene should sound like as well as look like.
4. Optionally attach a reference image below the prompt area to run image-to-video from that frame.
5. Set duration and resolution via the settings gear, check the live credit count next to the Run button, and run.

A prompting note specific to this model: give the audio a line of its own. “Distant traffic, footsteps on gravel, a low cinematic hum” steers the generated soundtrack the same way camera language steers the visuals — leaving it out means leaving the sound to chance. And as with any of the pricier models, a sensible habit is to draft the visual idea on a cheaper model first, then bring the winning prompt to Veo once the shot is worth its 45 credits. For a fuller walkthrough of the composer, see Generating videos from text.

Pricing in credits

A Veo 3.1 Fast generation starts at 45 credits on Flovaly — between the 30-credit Seedance default and the 60-credit Sora 2 Pro. Your duration and resolution choices move the final figure, and the exact credit count for your current settings is always shown next to the Run button before you commit. Text-to-video and image-to-video run at the same pricing. For how credits map to plans, see Credits, plans, and billing.

Alternatives on Flovaly

• Seedance 2.0 Pro (30 credits) — the default, tuned for UGC-realistic, person-filmed footage. Cheaper, but silent output.
• Sora 2 Pro(60 credits) — OpenAI's premium cinematic model. More expensive, slower, text-to-video only, and no generated audio.
• Kling 2.5 Turbo(35 credits) — the image-to-video workhorse when the job is animating your character's still faithfully.
• Kling 3.0 (25 credits) — the budget option for volume drafting and punchy motion.

When to choose Veo 3.1 Fast

Choose Veo 3.1 Fast when the clip should arrive with sound and motion energy in one pass — atmospheric B-roll, kinetic product shots, cinematic cutaways you do not want to score by hand. At 45 credits it is a deliberate step up from the default, so use it when audio or camera movement is genuinely the point of the shot.

For candid, feed-native ad creative, start with Seedance 2.0 Pro instead — and for word-perfect spoken lines, build the clip through Talking Actors rather than any base video model.

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