Veo 3.1 API for Video with Synchronized Audio
The Veo 3.1 API gives developers Google DeepMind's video generation model, producing synchronized audio in the same call as the video. It generates 4 to 8 second clips from text, image, or reference inputs, then chains scene extensions into videos over a minute long at 720p and 1080p. On Atlas Cloud you call every Veo 3.1 variant with one key, no Google Cloud setup, from $0.05 per second.
Explore the Leading Veo 3.1
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Veo 3.1 API Modalities
Veo 3.1 API Endpoints
| Modality | Description |
|---|---|
| Veo 3.1 Text to Video API (T2V) | The Veo 3.1 T2V API empowers developers to turn text prompts into high-fidelity video with synchronized audio in a single call. With strong cinematic control and scene extension past one minute, it produces finished clips for advertising, film, and brand storytelling. |
| Veo 3.1 Fast Text to Video API (T2V) | When speed and budget matter, the Fast Text to Video API delivers Veo 3.1 generation at lower latency and cost, still with native audio. It also accepts reference images, so high-volume social and marketing content stays on brand. |
| Veo 3.1 Lite Text to Video API (T2V) | Priced for scale, the Lite Text to Video API is the most cost-efficient way to generate Veo 3.1 video with synchronized audio. It runs at 720p and 1080p, ideal for ads, previews, and rapid iteration where volume drives cost. |
| Veo 3.1 Image to Video API (I2V) | Feed in a still image and the Veo 3.1 I2V API animates it into motion-rich video with synchronized audio. First and last frame control brings products, portraits, and concepts to life with natural, cinematic movement. |
| Veo 3.1 Reference to Video API (R2V) | Need the same character in every scene? The Veo 3.1 R2V API takes up to three reference images and holds a subject's identity and appearance steady across frames, which suits series and character-driven content. |
| Veo 3.1 First and Last Frame to Video API (Start-End Frame) | Give the Veo 3.1 First and Last Frame to Video API a starting and ending frame, and it generates the transition between them with matching audio. The result is precise control over each clip's arc for match cuts and smooth scene changes. |
Key Features of Veo 3.1 API
Explore what the Veo 3.1 API delivers, from native synchronized audio and scene extension to first and last frame control, multi-image reference, and cinematic realism.
Native Synchronized Audio
The Veo 3.1 API generates synchronized audio in the same call as the video, including dialogue, ambient sound, and music locked to on-screen action. This removes the separate audio pass, so clips arrive ready to publish.
Scene Extension
The Veo 3.1 API extends clips beyond the base 8 seconds by chaining new segments onto the final frames. You can build videos over a minute long while keeping motion, characters, and style consistent across segments.
First and Last Frame Control
Provide a starting frame and an ending frame, and the Veo 3.1 API generates the transition between them with matching audio. This gives precise control over each clip's arc for match cuts and smooth scene changes.
Multi-Image Reference
The Veo 3.1 API accepts up to three reference images of a person, character, or product to lock identity and appearance. This keeps subjects consistent across frames, which suits series content and brand-driven video.
Dialogue and Lip-Sync
The Veo 3.1 API renders speaking characters with synchronized lip movement and natural facial expressions. Dialogue stays aligned with the generated audio, making it dependable for storytelling, explainers, and marketing clips.
Cinematic Realism
The Veo 3.1 API produces natural lighting, smooth camera motion, and accurate perspective for film-like results. This consistency across the frame makes it well suited for advertising, product films, and cinematic storytelling.
Model Comparison
A cinematic tracking shot, slow dolly-in at eye level. A young woman in a flowing red silk dress walks through a sunlit wheat field at golden hour, wind sweeping the stalks around her in rippling waves. She runs her hand across the wheat tops as she walks, droplets of dew flicking off the stalks and catching the light. A flock of sparrows suddenly bursts upward from the field behind her, wings beating audibly. The camera holds steady, slightly handheld, with shallow depth of field keeping her in sharp focus while the background softly blurs. Natural ambient sound: rustling wheat, distant birdsong, light wind brushing against fabric, her footsteps in soft soil. Warm, golden cinematic color grading, soft lens flare from the low sun, 35mm film aesthetic.
Generated by Google Veo 3.1
Generated by Kling 3.0
Generated by Google Seedance 1.5
A medium two-shot, static camera at chest height. Two friends stand on a rain-slicked rooftop at night, city skyline glittering behind them, neon signs reflected in the wet concrete. One man in a leather jacket laughs and says, "I told you it would work," while the other, holding a steaming cup of coffee, shakes his head and replies, "Yeah, yeah, don't get used to it." Steam rises visibly from the cup. A subway train rumbles distantly below, its lights briefly sweeping across their faces. Raindrops continue falling lightly, visible against the neon glow, occasionally hitting the lens. Audio: overlapping natural dialogue with distinct voices, ambient city hum, distant train rumble, soft rain patter, light reverb suggesting open rooftop space. Moody cyan-and-magenta cinematic lighting, slight lens distortion, anamorphic flare from the neon signs.
Generated by Google Veo 3.1
Generated by Seedance 2.0
Generated by Wan 2.7
What You Can Do with the Veo 3.1 API
See what you can build with the Veo 3.1 API, from marketing and product videos to creative pitching, education, fashion campaigns, and game storytelling.
Advertising & Marketing Videos
The Veo 3.1 API turns text prompts into cinematic, on-brand ad videos with synchronized audio, ready for TV and social feeds. Teams can generate multiple campaign variations for different audiences without a live shoot.
Social & Short-Form Product Content
Animate product or lifestyle images into vertical reels and shorts with the Veo 3.1 API, complete with native sound. The feed-native motion and audio make clips ready to post across TikTok, Reels, and Shorts.
Creative Prototyping & Pitching
It turns ad concepts into realistic sample videos in minutes, so teams can show clients and test directions early. This validates creative ideas before committing to full production budgets.
Education & Explainer Videos
The Veo 3.1 API animates complex topics into clear, narrated explainers with synchronized audio. It suits course content, science and math walkthroughs, and short documentaries for classrooms or YouTube.
Fashion & Lifestyle Campaigns
The Veo 3.1 API builds studio-style fashion and lifestyle videos, from runway teasers to lifestyle looks, with control over lighting and setting. Brands can produce full campaign clips without a physical shoot.
Gaming & Storytelling
It turns scripts, concepts, or concept art into cinematic sequences with motion and audio. It helps game teams and storytellers prototype scenes and trailers without lengthy animation pipelines.
How the Model Compares
Compare the Veo 3.1 API with other leading video models on inputs, duration, resolution, and native audio, so you can pick the right model for each job.
| Model | Best for | Native audio | Max resolution | Output duration | Speed and cost |
|---|---|---|---|---|---|
| Veo 3.1 | Cinematic video with synchronized audio and scene extension | Yes | 1080p | 4 to 8s, extend past 1 min | Tiered, from low-cost Lite to premium |
| Veo 3.1 Fast | Faster iteration with a small fidelity tradeoff, plus reference images | Yes | 1080p | 4, 6, or 8s, extendable | Faster than Standard, lower cost |
| Veo 3.1 Lite | High-volume, low-cost drafts and batch jobs | Yes | 1080p | 4, 6, or 8s | Fastest and lowest cost |
| Seedance 2.0 | Hero-quality video with full reference control | Yes | Up to 4K | 4 to 15s | Highest fidelity, highest cost |
| Wan 2.7 | All-in-one video and image suite | Yes | 1080p | 2 to 15s | From $0.10 per second |
How to Use Veo 3.1 on Atlas Cloud
Get started in minutes — follow these simple steps to integrate and deploy models through Atlas Cloud's platform.
Create an Atlas Cloud Account
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Why Use Veo 3.1 on Atlas Cloud
Combining the advanced Veo 3.1 models with Atlas Cloud's GPU-accelerated platform provides unmatched performance, scalability, and developer experience.
Performance & flexibility
Low Latency:
GPU-optimized inference for real-time reasoning.
Unified API:
Run Veo 3.1, GPT, Gemini, and DeepSeek with one integration.
Transparent Pricing:
Predictable per-token billing with serverless options.
Enterprise & Scale
Developer Experience:
SDKs, analytics, fine-tuning tools, and templates.
Reliability:
99.99% uptime, RBAC, and compliance-ready logging.
Security & Compliance:
SOC 2 Type II, HIPAA alignment, data sovereignty in US.
Veo 3.1 API FAQ
The Veo 3.1 API gives developers access to Google DeepMind's video generation model. It creates video from text, images, references, or start and end frames, with synchronized audio produced in the same call. On Atlas Cloud you reach every Veo 3.1 variant through one integration.
Yes. The Veo 3.1 API produces synchronized audio in the same call as the video, including dialogue, ambient sound, and music aligned to on-screen action. This removes the need for a separate audio pass.
The Veo 3.1 API generates clips of 4, 6, or 8 seconds, and the Extend feature chains segments into videos over a minute long. Output is available at 720p and 1080p in both landscape and portrait aspect ratios.
Lite is the most cost-efficient tier for high-volume work, Fast trades a little quality for quicker and cheaper generation, and the standard model targets the highest fidelity. All three produce synchronized audio, so you can match the tier to your budget and quality needs.
On Atlas Cloud the Veo 3.1 API is billed per second of video, starting at $0.05 on the Lite tier, $0.08 on Fast, and $0.20 on the standard tier. You only pay for the video you generate, with no subscription.
No. Going to Google directly routes Veo 3.1 through Vertex AI or the Gemini API, which involves a Google Cloud project. With the Veo 3.1 API on Atlas Cloud you only need an Atlas Cloud account and a single key, with no Google Cloud setup.
Yes. Videos you generate through the Veo 3.1 API can be used commercially, which makes it suitable for ads, product content, and client work. You retain the rights to the content you create.
Yes. All Veo 3.1 output carries Google's SynthID watermark, an embedded marker that identifies content as AI-generated, and it cannot be disabled. The watermark does not affect visible quality or your ability to use the video commercially.
Atlas Cloud exposes an OpenAI-compatible API, so you can point the OpenAI SDK at the Atlas Cloud base URL, add your Atlas key, and call the Veo 3.1 API with your existing code. You can make your first request in minutes without a new integration.
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