Veo 3.1 Fast

Overview

Veo 3.1 Fast is Google's lower-cost Veo 3.1 lane for quicker prompt-to-video iteration with native audio. The upstream Veo family supports image-guided workflows, but this MachGen catalog entry currently exposes text-to-video only.

Use it to explore compositions and camera beats, then compare finalists with Veo 3.1 Standard. Available duration, aspect-ratio, and resolution settings are shown in the playground above; generated video may include Google's SynthID watermark.

Why choose Veo 3.1 Fast

Key strengths

• A faster, lower-cost Veo lane for cinematic drafts with native audio.
• Uses the same core language of subject, camera, lighting, dialogue, and sound as the Standard model.
• Well suited to testing several directions before choosing a final treatment.

Good fit for

• Storyboards, pitch iterations, social drafts, and campaign concept testing.
• Comparing camera moves, performances, or sound directions quickly.
• Volume workflows where turnaround matters more than maximum finish.

Inputs and output settings

This table reflects the model routes and controls currently exposed by MachGen.

Using Veo 3.1 Fast

1. Choose a supported generation mode in Playground.
2. Add the required prompt and source or reference assets.
3. Select output settings from the controls shown for that mode.
4. Generate, then inspect the returned asset before reusing the settings through the API.

Practical guidance

• Describe the subject, action or composition, environment, and visual direction in a clear order.

Prompting notes

• Describe the subject, action, environment, camera, lighting, and audio in a clear order.
• Use concrete camera language such as wide shot, close-up, tracking shot, or slow push-in.
• Put short spoken lines in quotation marks and describe the intended speaker.
• Keep each clip focused on a small number of actions, then review motion, speech, and continuity before production use.

How to get better Veo 3.1 Fast results

• Generate several simple variations instead of one overloaded prompt.
• Keep dialogue concise and specify who speaks, delivery style, and surrounding ambience.
• Lock framing and duration early so comparisons focus on creative direction.
• Move a validated prompt to Veo 3.1 Standard when the shot needs the strongest finish.

Limits and availability

• MachGen admits only the modes and settings listed above for this catalog model.
• Source assets must finish uploading before a request can be submitted.
• Generated results can vary between requests, including when the same prompt and settings are reused.
• Veo 3.1 Fast is pass-through. MachGen sends the request through its upstream provider integration and returns the generated asset.

Learn more

For model background, technical details, and architecture, see the official Veo 3.1 model documentation.

Try this model in the MachGen Playground.

Official documentation may describe capabilities or parameters that are not currently exposed by MachGen. Use the Inputs and output settings section above as the source of truth for this page.

Veo 3.1 Fast pricing

See Pricing for currently published MachGen rates. When available, the Playground estimate reflects the selected task and output settings.

Veo 3.1 Fast on MachGen

Deployment: Pass-through. Veo 3.1 Fast is pass-through. MachGen sends the request through its upstream provider integration and returns the generated asset.

The Playground and API sections on this page list the inputs and output settings exposed for this model.