Image to video
Elo with audio · image-to-video arena
Veo 3.1 Fast overview
Veo 3.1 Fast specs
- Model ID
google/veo-3.1-i2v-fast- Developer
- Input
- Text
- Output
- Video
- Endpoint
POST https://api.aimlapi.com/v2/video/generations
Model Overview
Veo 3.1 Fast API is an accelerated variant of Google's DeepMind Veo 3.1 model designed for text-to-video generation. It produces high-quality videos of up to 1080p resolution with realistic natural motion, cinematographic camera movements, and synchronized native audio including background sounds, light music, and speech-like lip-sync for characters.
What Makes Veo 3.1 Fast Different
Veo 3.1 Fast prioritizes generation speed and operational efficiency. Compared to standard Veo workflows, it is tuned for faster inference and streamlined outputs, enabling near-real-time video creation in production environments. This makes it especially suitable for dynamic user experiences, rapid prototyping, and large-scale automation where time-to-result matters.
Rather than replacing the core Veo 3.1 capabilities, the Fast API offers a focused subset of generation paths that cover the most common and performance-critical use cases.
Technical Specifications
- Resolution: Supports output at 720p and 1080p for videos, optimized at 8 seconds duration.
- Frame Rate: 24 frames per second for smooth cinematic video playback.
- Video Duration: Typically generates 8-second clips; supports shorter lengths (4-6 seconds) as well.
- Audio: Natively generates audio synchronized with video content, including speech, effects, and ambient sounds.
- Performance: Optimized for speed with reduced latency compared to standard Veo 3.1, making it suitable for faster content production.
Core Video Generation Modes
Veo 3.1 Fast supports several logically scoped API options, each optimized for speed while retaining creative control.
Veo 3.1 Fast Text-to-Video
This mode generates short, high-quality video clips directly from natural language prompts. Users describe scenes, actions, and visual intent, and the model produces animated video content with coherent motion and consistent style. The Fast configuration is ideal for applications that require quick previews, rapid iterations, or user-driven video generation at scale.
Veo 3.1 Fast Image-to-Video
Image-to-Video in Veo 3.1 Fast transforms a single image into a dynamic video sequence. The model extrapolates motion, depth, and environmental context while maintaining visual fidelity to the original image. This mode is optimized for fast animation of existing assets, such as product visuals, illustrations, or character artwork.
Use cases
- Content Creation: Rapid production of cinematic-quality short videos for social media, marketing, and storytelling.
- Virtual Characters: Creating talking avatars or animated characters with synchronized lip movements.
- Commercial Presentations: Generating product demos or promotional clips with integrated sound effects.
- Creative Media: Crafting stylized video sequences with consistent mood and visual style from textual descriptions.
Veo 3.1 Fast benchmarks by 
Artificial Analysis
Human-preference results for Veo 3.1 Fast in image to video and silent image to video, next to models available on AI/ML API. Data retrieved Nov 3, 2026.
Silent image to video
Elo · silent image-to-video arena
Models on AI/ML API
Arena results for models you can call with the same API key.
Image to video
Blind votes on clips with sound animated from a start image. Veo 3.1 Fast ranks #22 of 29.
Silent image to video
Clips animated from a start image, judged as silent video. Veo 3.1 Fast ranks #23 of 34.
Veo 3.1 Fast API pricing
| Usage | Price | Unit |
|---|---|---|
| Video generation | $0.08 | per second |
| Additional | $0.195 | per /sec |
The final price depends on request parameters such as resolution or duration.
Prices from the AI/ML API price list, checked on Nov 4, 2026.
Veo 3.1 Fast vs other video models: prices
AI/ML API rates for 5 models, per second.
| Model | Per second |
|---|---|
 Veo 3.1 Fast | $0.08 |
| Veo 3.1 Lite | $0.03 |
| Veo 3.1 Lite Generate Preview | $0.03 |
| Gemini Omni 1.1 Flash | $0.1014 |
| Veo 3.1 | $0.2 |
How to use the Veo 3.1 Fast API
View docs
Build with your agent
Give your agent the model details, code and documentation.
Paste it into your coding agent to build the integration.
1Get your API key
Create API keyexport AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"2Make your first request
curl 'https://api.aimlapi.com/v2/video/generations' \
-H "Authorization: Bearer $AIMLAPI_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "google/veo-3.1-i2v-fast",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}'import os
import requests
headers = {
"Authorization": f"Bearer {os.environ['AIMLAPI_KEY']}",
"Content-Type": "application/json",
}
payload = {
"model": "google/veo-3.1-i2v-fast",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}
response = requests.post("https://api.aimlapi.com/v2/video/generations", headers=headers, json=payload, timeout=120)
response.raise_for_status()
print(response.json())const response = await fetch("https://api.aimlapi.com/v2/video/generations", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"model": "google/veo-3.1-i2v-fast",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}),
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(await response.json());The request returns a generation id. Poll GET https://api.aimlapi.com/v2/video/generations?generation_id=<id> until the status is completed.
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Veo 3.1 Fast FAQ
What inputs and outputs does Veo 3.1 Fast support?
Veo 3.1 Fast takes image, text as input and returns video.
How much does Veo 3.1 Fast cost?
Veo 3.1 Fast costs $0.08 per second on AI/ML API, billed as you go with no subscription.
How is Veo 3.1 Fast billed?
Veo 3.1 Fast costs $0.08 per second on AI/ML API, billed as you go with no subscription.
Can Veo 3.1 Fast take an existing image as input?
Yes, Veo 3.1 Fast accepts image input as well as a text prompt.
Who created Veo 3.1 Fast?
Veo 3.1 Fast was built by Google.
How do I call Veo 3.1 Fast on AI/ML API?
Send a request to v2/video/generations with google/veo-3.1-i2v-fast as the model id.
Is Veo 3.1 Fast available through a single API key?
Yes. Veo 3.1 Fast is served through AI/ML API, so the same key and endpoint format used for other models applies.
Can Veo 3.1 Fast produce videos with sound?
Yes, it includes audio generation as one of its features.
What is the Veo 3.1 Fast model ID?
Use google/veo-3.1-i2v-fast as the model parameter. Requests go to https://api.aimlapi.com/v2/video/generations with your AI/ML API key.