---
title: "Veo 3.1: workflow fit, costs and terms"
description: "Short trailer shots with planned first and last frames or Veo clip extension"
language: en
canonical: https://bestadultgames.io/en/developers/models/veo-3-1
---

[Developers](https://bestadultgames.io/en/developers.md) / [video models](https://bestadultgames.io/en/developers/models?category=video)

model · Documentation reviewed · 5 October 2026

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# Veo 3.1

Short trailer shots with planned first and last frames or Veo clip extension

- **Availability**: available
- **Where it runs**: hosted
- **Costs**: The Gemini API bills standard Veo 3.1 per second of successfully generated video, with resolution affecting the rate; there is no free tier. Budget for successful takes you discard as well as the final edit.
- **Adult content policy**: restricted

Veo 3.1 is worth shortlisting for trailer shots whose opening and closing compositions are already planned. First- and last-frame inputs give you concrete ways to guide a transition, while extension can continue a Veo-generated clip. Google keeps it alongside Omni for these workflows. Those controls make it useful for animating approved, non-explicit game art, but they cannot guarantee that a character's face or movement will survive every take. Review identity, motion and generated sound separately before accepting a shot. The Gemini API endpoint remains in preview: keep your source art and downloaded masters, with another production route available if the endpoint changes.

## Commercial use & license

Proprietary hosted model. Review the applicable service terms for commercial output use; no downloadable weight license is established here.

## Adult content rules

Google prohibits sexually explicit content, including pornography and content made for sexual gratification. Use Veo here only for permitted non-explicit work.

[Read the policy](https://policies.google.com/terms/generative-ai/use-policy?hl=en)

## What you need

Use the Gemini API model ID veo-3.1-generate-preview with paid-tier access and an API key. Check its duration/resolution matrix: 1080p and 4K require eight-second generation, and video extension is limited to 720p.

Ranks are recommendations for the task described, based on reviewed documentation. Model ranks cover non-explicit development work. We have not run practical benchmarks. Check content policies and commercial terms separately. [How the ranks work](https://bestadultgames.io/en/developers/methodology.md)

### Sources & further reading

- [Veo API capabilities and model IDs](https://ai.google.dev/gemini-api/docs/veo)
- [Google video model selection](https://ai.google.dev/gemini-api/docs/video)
- [Google generative AI prohibited use policy](https://policies.google.com/terms/generative-ai/use-policy?hl=en)

Last checked 5 October 2026.

## Why consider it

- First and last frames guide a shot's opening and closing composition
- Extend an existing Veo-generated clip
- Generate video and sound in the same pass

## Tradeoffs to plan for

- Preview endpoint may change
- 1080p and 4K need eight-second generation; extension is 720p
- Frame controls and extension do not guarantee character or motion continuity

The tier reflects documented fit for the workflow described here and availability. No numeric score or hands-on performance results are provided.

[Compare with other models](https://bestadultgames.io/en/developers/compare?model=veo-3-1)

## Related guides

AI video · Intermediate · 5 min read

### [Choose an AI video model for a game production](https://bestadultgames.io/en/developers/guides/choose-ai-video-model-for-games.md)

Choose an AI video model for game assets by checking controls, content rules, rights and cost, then comparing takes made with your approved art.

Read the guide → A reading priority

AI video · Intermediate · 5 min read

### [Build consistent character clips and seamless game loops](https://bestadultgames.io/en/developers/guides/consistent-character-video-loops.md)

Approve character art, plan restrained motion, check continuity and loop seams, then export video, editable sound and a still fallback for your game.

Read the guide → A reading priority