--- title: Veo 3.1 Fast description: A faster version of Veo 3.1 optimized for lower latency while maintaining high-quality video and audio output. image: https://developers.cloudflare.com/dev-products-preview.png --- > Documentation Index > Fetch the complete documentation index at: https://developers.cloudflare.com/ai/llms.txt > Use this file to discover all available pages before exploring further. [Skip to content](#%5Ftop) ![Google logo](https://developers.cloudflare.com/_astro/google.DyXKPTPP.svg) # Veo 3.1 Fast Text-to-Video • Google `google/veo-3.1-fast` A faster version of Veo 3.1 optimized for lower latency while maintaining high-quality video and audio output. | Model Info | | | ------------------- | --------------------------------------------------------------------------------------------------------------------- | | Terms and License | [link ↗](https://ai.google.dev/gemini-api/terms) | | More information | [link ↗](https://deepmind.google/technologies/veo/) | | Zero data retention | Yes | | Pricing | [View pricing in the Cloudflare dashboard ↗](https://dash.cloudflare.com/?to=/:account/ai/models/google/veo-3.1-fast) | ## Usage * [ TypeScript ](#tab-panel-772) * [ cURL ](#tab-panel-773) TypeScript ``` const response = await env.AI.run( 'google/veo-3.1-fast', { prompt: 'A butterfly landing on a colorful flower in a garden', aspect_ratio: '16:9', duration: '6s', generate_audio: true, resolution: '720p', },)console.log(response) ``` Terminal window ``` curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \ --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \ --header "Content-Type: application/json" \ --data '{ "model": "google/veo-3.1-fast", "input": { "prompt": "A butterfly landing on a colorful flower in a garden", "aspect_ratio": "16:9", "duration": "6s", "generate_audio": true, "resolution": "720p" }}' ``` * [ Output ](#tab-panel-768) * [ Raw response ](#tab-panel-769) ``` { "gatewayMetadata": { "keySource": "Unified" }, "result": { "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/quick-demo.mp4" }, "state": "Completed"} ``` ## Examples **Social Content** — Quick vertical video for social media * [ TypeScript ](#tab-panel-776) * [ cURL ](#tab-panel-777) TypeScript ``` const response = await env.AI.run( 'google/veo-3.1-fast', { prompt: 'Aesthetic morning routine: sun rays through curtains, coffee being poured', aspect_ratio: '9:16', duration: '6s', generate_audio: true, resolution: '720p', },)console.log(response) ``` Terminal window ``` curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \ --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \ --header "Content-Type: application/json" \ --data '{ "model": "google/veo-3.1-fast", "input": { "prompt": "Aesthetic morning routine: sun rays through curtains, coffee being poured", "aspect_ratio": "9:16", "duration": "6s", "generate_audio": true, "resolution": "720p" }}' ``` * [ Output ](#tab-panel-770) * [ Raw response ](#tab-panel-771) ``` { "gatewayMetadata": { "keySource": "Unified" }, "result": { "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/social-content.mp4" }, "state": "Completed"} ``` **Motion Graphics** — Quick animated graphics * [ TypeScript ](#tab-panel-780) * [ cURL ](#tab-panel-781) TypeScript ``` const response = await env.AI.run( 'google/veo-3.1-fast', { prompt: 'Glowing neon lines forming geometric patterns on a dark background', aspect_ratio: '16:9', duration: '4s', generate_audio: false, resolution: '720p', },)console.log(response) ``` Terminal window ``` curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \ --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \ --header "Content-Type: application/json" \ --data '{ "model": "google/veo-3.1-fast", "input": { "prompt": "Glowing neon lines forming geometric patterns on a dark background", "aspect_ratio": "16:9", "duration": "4s", "generate_audio": false, "resolution": "720p" }}' ``` * [ Output ](#tab-panel-774) * [ Raw response ](#tab-panel-775) ``` { "gatewayMetadata": { "keySource": "Unified" }, "result": { "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/motion-graphics.mp4" }, "state": "Completed"} ``` **Ambient Scene** — Relaxing background video * [ TypeScript ](#tab-panel-782) * [ cURL ](#tab-panel-783) TypeScript ``` const response = await env.AI.run( 'google/veo-3.1-fast', { prompt: 'Rain falling on a window with a blurred city skyline in the background at night', aspect_ratio: '16:9', duration: '8s', generate_audio: true, resolution: '720p', },)console.log(response) ``` Terminal window ``` curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \ --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \ --header "Content-Type: application/json" \ --data '{ "model": "google/veo-3.1-fast", "input": { "prompt": "Rain falling on a window with a blurred city skyline in the background at night", "aspect_ratio": "16:9", "duration": "8s", "generate_audio": true, "resolution": "720p" }}' ``` * [ Output ](#tab-panel-778) * [ Raw response ](#tab-panel-779) ``` { "gatewayMetadata": { "keySource": "Unified" }, "result": { "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/ambient-scene.mp4" }, "state": "Completed"} ``` ## Parameters * [ Input ](#tab-panel-784) * [ Output ](#tab-panel-785) prompt `string`requiredText prompt describing the video to generate image\_input `string`Base64-encoded reference image for i2v duration `string`requireddefault: 6senum: 4s, 6s, 8sVideo duration aspect\_ratio `string`requireddefault: 16:9enum: 16:9, 9:16, 1:1Video aspect ratio resolution `string`requireddefault: 720penum: 720p, 1080pVideo resolution generate\_audio `boolean`requireddefault: trueWhether to generate audio with the video video `string`format: uriURL to the generated video ## API Schemas (Raw) Input [ ](https://developers.cloudflare.com/ai/models/google/veo-3.1-fast/schema-input.json "Open") [ ](https://developers.cloudflare.com/ai/models/google/veo-3.1-fast/schema-input.json "Download") Output [ ](https://developers.cloudflare.com/ai/models/google/veo-3.1-fast/schema-output.json "Open") [ ](https://developers.cloudflare.com/ai/models/google/veo-3.1-fast/schema-output.json "Download") ```json {"@context":"https://schema.org","@type":"TechArticle","@id":"https://developers.cloudflare.com/ai/models/google/veo-3.1-fast/#page","headline":"Veo 3.1 Fast (Google) · Cloudflare AI docs · Cloudflare AI docs","description":"A faster version of Veo 3.1 optimized for lower latency while maintaining high-quality video and audio output.","url":"https://developers.cloudflare.com/ai/models/google/veo-3.1-fast/","inLanguage":"en","image":"https://developers.cloudflare.com/dev-products-preview.png","publisher":{"@type":"Organization","name":"Cloudflare","url":"https://www.cloudflare.com/"},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/ai/","name":"AI"}},{"@type":"ListItem","position":3,"item":{"@id":"/ai/models/","name":"Models"}}]} ```