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.
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.
Veo 3.1 Fast supports several logically scoped API options, each optimized for speed while retaining creative control.
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.
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.
This option allows developers to define the opening and closing frames of a clip, with Veo 3.1 Fast generating a smooth transition between them. By anchoring the beginning and end states, the model creates controlled motion paths while minimizing generation time. It is particularly effective for transitions, micro-stories, and UI-driven video effects.
Developers provide a prompt or visual inputs, select the Fast generation mode, and specify basic output parameters such as aspect ratio or duration. Video generation runs asynchronously, allowing applications to remain responsive while results are produced quickly and reliably. This design supports integration into real-time systems, batch pipelines, and creative tools where low latency and predictable performance are essential.
Veo 3.1 Fast delivers visually coherent video with smooth motion and consistent framing. It supports common aspect ratios, including landscape and vertical formats, and produces outputs suitable for social platforms, previews, and embedded experiences. While optimized for speed, the model maintains strong alignment with prompts and input visuals, ensuring usable, production-ready results for fast-moving workflows.
Veo 3.1 Fast is well-suited for interactive platforms, user-generated content tools, rapid creative iteration, and automated video pipelines. It enables instant previews, fast content variation, and large-volume generation for marketing, social media, e-commerce, and internal tools. For teams that need AI video generation to feel immediate and reliable, the Fast API is a natural fit.
import requests, time headers = {"Authorization": "Bearer " + AIMLAPI_KEY} job = requests.post( "https://api.aimlapi.com/v2/video/generations", headers=headers, json={ "model": "google/veo-3.1-i2v-fast", "prompt": "A serene timelapse of clouds over a mountain range" }, ).json() gid = job["id"] while True: res = requests.get(f"https://api.aimlapi.com/v2/video/generations?generation_id={gid}", headers=headers).json() if res.get("status") in ("completed", "error"): break time.sleep(5) print(res["video"]["url"])
const headers = { Authorization: `Bearer ${process.env.AIMLAPI_KEY}`, "Content-Type": "application/json", }; const job = await (await fetch("https://api.aimlapi.com/v2/video/generations", { method: "POST", headers, body: JSON.stringify({ "model": "google/veo-3.1-i2v-fast", "prompt": "A serene timelapse of clouds over a mountain range" }), })).json(); let res; do { await new Promise((r) => setTimeout(r, 5000)); res = await (await fetch(`https://api.aimlapi.com/v2/video/generations?generation_id=${job.id}`, { headers })).json(); } while (!["completed", "error"].includes(res.status)); console.log(res.video.url);
# submit the generation — the response contains the job "id" curl -X POST 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 serene timelapse of clouds over a mountain range"}' # then poll until status is "completed" — video.url holds the result curl "https://api.aimlapi.com/v2/video/generations?generation_id={id}" -H "Authorization: Bearer $AIMLAPI_KEY"
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Output | |
| Benchmark | Score | What it measures | Source | Retrieved |
|---|---|---|---|---|
| Text-to-Video Arena | 964 | Human preference Elo from blind pairwise comparisons of generated videos, measured independently by Artificial Analysis | Source | October 4, 2026 |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
Veo 3.1 Fast This page | Video generation |
Veo 3.1 Fast takes image, text as input and returns video.
Veo 3.1 Fast is priced at $0.13 / sec (variable).
Veo 3.1 Fast is billed per generation — a fixed charge per output rather than by prompt length.
Yes, Veo 3.1 Fast accepts image input as well as a text prompt.
Veo 3.1 Fast was built by Google.
Send a request to v2/video/generations with google/veo-3.1-i2v-fast as the model id.
Yes. Veo 3.1 Fast is served through AI/ML API, so the same key and endpoint format used for other models applies.
Yes, it includes audio generation as one of its features.
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