Google Veo 3.1 API

Generate high-quality video from text or images with the Google Veo 3.1 API on Kie AI. Control every frame, extend scenes, and produce synchronized audio — try Veo 3.1 and put cinematic AI video generation to work.

The API supports text-to-video, image-to-video, and reference-to-video generation. You can set the ratio (Auto, 16:9, or 9:16), choose a resolution of 720p, 1080p, or 4K, and pick a clip length of 4, 6, or 8 seconds. Per Google, audio is an experimental feature and may be unavailable on some videos. Note that video generated above 1080p cannot be extended.

Available Veo 3.1 Models on Kie AI

Veo 3.1 Fast

Tuned for speed and lower cost. It's the right pick for fast generation, social media content, and ad creatives where quick turnaround is the priority. Use it to test ideas and iterate rapidly.

Veo 3.1 Quality

Delivers richer detail, smoother motion, and accurate lighting. Suited to projects that demand cinematic precision, professional visuals, and consistently high-quality output.

New Capabilities in Veo 3.1

Start and End Frame Control

Define exactly how your video begins and ends. The Veo 3.1 API lets you control both the first and last frame, producing smooth, cinematic transitions that give clips a clear rhythm and make every sequence feel intentional and complete.

Multi-Image Reference

Use multiple images to steer your video's visual direction. Provide different reference images to shape character design, lighting style, or color tone, keeping the generated video visually consistent across every shot.

Native Audio and Richer Sound

Veo 3.1 adds native audio — dialogue, ambient sound, and effects that match the movement on screen. Through Kie AI's API, sound and visuals stay aligned, making scenes feel more immersive and believable.

Extend Clips Beyond 8 Seconds

When you want a clip to keep going, you can extend it without losing coherence. The Extend feature carries forward both motion and narrative, letting you push past 8 seconds into longer, more dynamic sequences.

Consistent Characters Across Scenes

Upload reference images of your character and the API maintains identity, appearance, and motion across every frame, keeping the subject visually consistent through multiple scenes for a cohesive, professional narrative.

Veo 3.1 vs. Veo 3 vs. Sora 2

Veo 3

Google's first large-scale text-to-video model, with cinematic motion and native audio. Supports 16:9 and 9:16, 720p–1080p resolution, and short clips up to 8 seconds — optimized for reliable, production-ready output.

Veo 3.1

Expands creative control with Start and End Frame, Multi-Image Reference, and Extend. It produces longer, smoother clips with stronger prompt adherence, richer native audio, and consistent visual style — well suited to storytelling and cinematic workflows.

Sora 2

OpenAI's model, focused on short-form video with realistic motion, synchronized dialogue, and accurate physics. It emphasizes natural scenes, expressive animation, and controllable narrative flow for creative and experimental projects.

How to Try the Veo 3.1 API on Kie AI

Step 1 — Create your prompt. Write a text prompt or upload multiple reference images. The API interprets your input to design realistic motion, lighting, and composition; describe the action, tone, or setting to shape how the video unfolds.

Step 2 — Customize video and audio settings. Choose resolution (720p or 1080p) and enable native audio. You control length, transitions, and ambient sound for a complete cinematic effect.

Step 3 — Generate and download. Click Generate to render the clip. Kie AI previews the result so you can review motion, sound, and detail. When you're satisfied, download the video or call the API endpoint directly to integrate it into your app or production workflow.

Why Use Kie AI for Veo 3.1 Access

• Free online testing. Generate your first Veo 3.1 video for free — no installation or setup. Open the playground, enter a text or image prompt, and see results instantly in your browser.
• Affordable pricing. Kie AI offers Google Veo 3.1 access at a lower rate, so you can create high-quality video with native audio while keeping costs down — a strong fit for developers, creators, and startups.
• All AI video and image APIs in one place. Kie AI unifies top APIs including Veo 3.1, Veo 3, Sora 2, and Wan 2.2 in a single interface, letting you explore, compare, and integrate models without switching platforms.

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