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02
Examples
Real outputs from the public examples of this model on Replicate, with the prompt and settings that produced them. They were not generated live on this page.
Input
Prompt
Overlapping geometric shapes, pulsing to upbeat electronic music with SFX of shifting patterns
Dĺžka: 0:08
Settings
aspect_ratio
16:9
resolution
720p
duration
8
Input
Prompt
the seed slowly starts to spin, faster and faster as it morphs into a whole watermelon
Dĺžka: 0:08
Settings
aspect_ratio
16:9
resolution
720p
duration
8
Prompt
a cat steals a fish from a supermarket and escapes
Dĺžka: 0:08
Settings
aspect_ratio
16:9
resolution
720p
duration
8
Príklady promptov
Príklady z katalógu Railwail. Neboli vygenerované živě na tejto stránke.
Rain
Dĺžka: 0:04
Rain on window with city lights blurred
03
O Google Veo 3.1 Fast
StručneK 23. septembra 2026
Google Veo 3.1 Fast je model od Google DeepMind v kategórii Generovanie videí. Na Railwail stojí Google Veo 3.1 Fast 0,18 USD za sekundu videa. V závislosti od nastavení sa cena pohybuje od 0,12 USD/s do 0,18 USD/s. Predvolené spustenie s trvaním 4 sekúnd stojí 0,72 USD. Podporované pomery strán: 16:9 a 9:16. Možné dĺžky: 4, 6 alebo 8 s.
Pozadie
O Google DeepMind
Založené 2010 · London, United Kingdom
Google DeepMind, formed in 2023 from Google Brain and DeepMind under Demis Hassabis, runs the Veo video-generation programme. Veo 3.1 Fast is the speed and cost tier of Veo 3.1, designed for high-volume creative iteration on Vertex AI, the Gemini API and consumer surfaces like VideoFX and YouTube Dream Screen. Like Veo 3 Fast before it, the Fast variant trades a small amount of fidelity for substantially faster generation and lower per-clip pricing, while keeping the joint audio-video diffusion stack and SynthID provenance from the full Veo 3.1.
Distilled latent video diffusion / DiT speed tier with joint audio-video diffusion
Veo 3.1 Fast is a distilled, low-step variant of Veo 3.1 that uses consistency-style sampler distillation and quantization to compress the diffusion process into far fewer denoising steps. The architecture is identical to Veo 3.1 -- a latent video diffusion model with a transformer denoiser plus a coupled audio diffusion module -- but parameters are tuned and the sampler shortened for substantially faster inference. Generation produces up to 8-second 1080p clips with synchronized audio (music, ambient sound, dialogue with lip-sync) at noticeably lower cost than the full Veo 3.1. Conditioning uses Gemini-family text encoders plus optional image and reference-frame inputs. Training is partly a distillation of Veo 3.1 with auxiliary supervision to preserve audio-video sync and prompt adherence under the shortened sampler.
Parametre
Undisclosed
Schopnosti
Speed-tier Veo 3.1 with native synchronized audio retained
Up to 8-second 1080p clips at substantially lower latency and cost
Text-to-video and image-to-video
Reference-frame conditioning for consistency
Rich cinematographic prompt vocabulary
Multilingual prompts via Gemini text encoders
Available via Vertex AI, Gemini API, VideoFX, Whisk and YouTube Dream Screen
SynthID audio + visual watermarking
Best for: high-volume creative iteration, ad A/B testing, social shorts with audio.
Tréning a licencia
Distilled from Veo 3.1 over the same curated multilingual audio-video corpus; auxiliary supervision tuned for sampler-step efficiency and audio-video synchronization.
Licencia: Proprietary commercial licence via Google Cloud / Vertex AI and Gemini API; commercial use under Google's generative-AI terms; mandatory SynthID watermark.
Bezpečnostné testy: Google Responsible AI framework with the same filters as Veo 3.1; SynthID-based provenance on all outputs.
Známe obmedzenia
Slight quality regression vs full Veo 3.1 on fine detail and complex audio
8-second clip limit
Audio short-form and English-leaning
Closed model with no peer-reviewed paper
Strict moderation on people, brands and political content
curl https://railwail.com/api/v1/videos/generations \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "veo-3-1-fast",
"prompt": "A slow drone shot over a misty pine forest at sunrise"
}'
# Response: {"job_id": "...", "status": "queued", ...}
# Poll until status is completed, failed or cancelled:
curl https://railwail.com/api/v1/jobs/JOB_ID \
-H "Authorization: Bearer $RAILWAIL_API_KEY"
import os
import time
import requests
API = "https://railwail.com/api/v1"
headers = {"Authorization": f"Bearer {os.environ['RAILWAIL_API_KEY']}"}
job = requests.post(
f"{API}/videos/generations",
headers=headers,
json={
"model": "veo-3-1-fast",
"prompt": "A slow drone shot over a misty pine forest at sunrise",
},
).json()
while True:
status = requests.get(f"{API}/jobs/{job['job_id']}", headers=headers).json()
if status["status"] in ("completed", "failed", "cancelled"):
break
time.sleep(5)
print(status["status"], status.get("output_url"))
const API = "https://railwail.com/api/v1";
const headers = {
Authorization: `Bearer ${process.env.RAILWAIL_API_KEY}`,
"Content-Type": "application/json",
};
const job = await fetch(`${API}/videos/generations`, {
method: "POST",
headers,
body: JSON.stringify({
model: "veo-3-1-fast",
prompt: "A slow drone shot over a misty pine forest at sunrise"
}),
}).then((r) => r.json());
let status;
do {
await new Promise((r) => setTimeout(r, 5000));
status = await fetch(`${API}/jobs/${job.job_id}`, { headers }).then((r) => r.json());
} while (!["completed", "failed", "cancelled"].includes(status.status));
console.log(status.status, status.output_url);
Proprietary commercial licence via Google Cloud / Vertex AI and Gemini API; commercial use under Google's generative-AI terms; mandatory SynthID watermark.
Katalógová položka aktualizovaná
23. septembra 2026
Vstupné parametre
Vstupy a nastavenia zo vstupnej schémy modelu. Príklad v sekcii API ukazuje, ktoré z nich API akceptuje.
Google Veo 3.1 Fast je model od Google DeepMind v kategórii Generovanie videí. Na Railwail ho môžete volať pomocou API kľúča cez Railwail API.
Koľko stojí Google Veo 3.1 Fast na Railwail?
Na Railwail stojí Google Veo 3.1 Fast 0,18 USD za sekundu videa. V závislosti od nastavení sa cena pohybuje od 0,12 USD/s do 0,18 USD/s. Predvolené spustenie s trvaním 4 sekúnd stojí 0,72 USD. Cena je známa pred spustením. Použitie sa platí z predplateného kreditu; 1 kredit sa rovná 0,01 USD.
Ktoré nastavenia podporuje Google Veo 3.1 Fast?
Podľa svojej vstupnej schémy Google Veo 3.1 Fast pozná tieto parametre: prompt, duration (4, 6 alebo 8), start_image a aspect_ratio (16:9 alebo 9:16).
Ako rýchly je Google Veo 3.1 Fast?
Pre Google Veo 3.1 Fast je na Railwail zatiaľ príliš málo meraných spustení na určenie doby spustenia. Závisí to od vstupu, nastavení a zaťaženia u poskytovateľa.
Je Google Veo 3.1 Fast lepší ako Google Veo 3.1?
Závisí to od úlohy. Google Veo 3.1 Fast (Google DeepMind) a Google Veo 3.1 (Google DeepMind) sú oba modely v kategórii Generovanie videí. Stránka porovnania zobrazuje ich ceny a špecifikácie vedľa seba.
Môže Google Veo 3.1 Fast použiť obrázok ako vstup?
Áno. Pošlite obrázok v parametri start_image.
Ako používam Google Veo 3.1 Fast cez API?
Vytvorte Railwail API kľúč a pošlite svoju požiadavku s ID modelu veo-3-1-fast. Príklady kódu pre curl, Python a JavaScript sú v časti API na tejto stránke.
