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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.
Prompt
a penguin walks away from the camera, towards a large snowy mountaintop in the distance
Længde: 0:05
Settings
aspect_ratio
16:9
resolution
720p
duration
5
Prompt
replace the arm with a branch
Længde: 0:06
Settings
aspect_ratio
16:9
resolution
720p
duration
6
Input
Prompt
the camera zooms in on to the man as he lifts both arms up in celebration
Længde: 0:06
Settings
aspect_ratio
16:9
resolution
720p
duration
6
Eksempelprompts
Eksempler fra Railwail-kataloget. De blev ikke genereret live på denne side.
Fun
Længde: 0:05
Golden retriever catching frisbee in slow motion
03
Om Grok Imagine Video
Kort sagtFra 23. september 2026
Grok Imagine Video er en model af xAI i kategorien Videogenerering. På Railwail koster Grok Imagine Video 0,060 US$ pr. videosekund. En standardkørsel på 5 sekunder koster 0,30 US$. Understøttede billedformater: 16:9, 9:16 og 1:1. Mulige længder: 1, 3, 5, 10 eller 15 s.
Baggrund
Om xAI
Grundlagt 2023 · San Francisco Bay Area, USA
xAI was founded in March 2023 by Elon Musk and a team of researchers from OpenAI, DeepMind, Google, Microsoft and Tesla, including Igor Babuschkin, Tony Wu, Christian Szegedy and Jimmy Ba. The company's stated mission is to 'understand the true nature of the universe' and it operates closely with X (formerly Twitter) and Tesla. xAI launched Grok-1 in November 2023 (later open-sourced), followed by Grok-1.5, Grok-2 and Grok-3 with native image generation (Aurora) and image-to-video (Grok Imagine). xAI runs the Colossus supercluster in Memphis (originally 100k H100s, expanded to 200k+ by 2025) and was valued above $50B in late 2024.
Grok Imagine Video is xAI's image-to-video generation feature shipped inside the Grok app and on X (Twitter). It is a closed model and xAI has published almost no technical detail beyond it being a 'native video generation' system that complements the Aurora image generator. Industry reporting and behaviour suggest a latent video diffusion architecture with a transformer denoiser, conditioned on text embeddings (likely from a Grok-family text encoder) and on an initial image. The product targets short social-media clips (6-15 seconds) at HD resolution with optional NSFW 'spicy' mode that bypasses many of the moderation filters used by competitors. Audio support (sound effects, ambient noise) was added in late 2025. Training data are presumed to draw heavily from xAI's privileged access to X video uploads, though xAI have not confirmed this.
Parametre
Undisclosed
Funktioner
Image-to-video and text-to-video for short social clips
Tight integration with X (Twitter) and the Grok app
NSFW / 'spicy' mode (within posted guidelines) unlike most rivals
Native audio (sound effects, ambient) since late 2025
Fast generation tuned for Colossus hardware
Available to X Premium / SuperGrok subscribers
Strong meme and pop-culture coverage
Mobile-first UX
Best for: meme content, social shorts, viral clips, rapid prototyping.
Træning og licens
Undisclosed; presumed to include licensed footage, web video and X platform uploads. xAI have not released a model card or data sheet.
Licens: Proprietary commercial licence under X / xAI terms of service.
Sikkerhedstests: Limited public information; permits more risque content than competitors but enforces CSAM, terrorism and impersonation filters.
Kendte begrænsninger
Short clip duration (typically 6-15 seconds)
No public model card or technical paper
Quality and consistency below Veo 3 / Sora 2 in independent tests
curl https://railwail.com/api/v1/videos/generations \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-video",
"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": "grok-video",
"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: "grok-video",
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);
Grok Imagine Video er en model fra xAI i kategorien Videogenerering. På Railwail kan du kalde den med en API-nøgle via Railwail API.
Hvad koster Grok Imagine Video på Railwail?
På Railwail koster Grok Imagine Video 0,060 US$ pr. videosekund. En standardkørsel på 5 sekunder koster 0,30 US$. Prisen kendes før kørslen starter. Forbrug betales fra forudbetalte credits; 1 credit svarer til 0,01 US$.
Ifølge dens inputskema kender Grok Imagine Video disse parametre: prompt, duration (1, 3, 5, 10 eller 15), start_image og aspect_ratio (16:9, 9:16 eller 1:1).
Hvor hurtig er Grok Imagine Video?
På Railwail var medianudførelsestiden for Grok Imagine Video over de seneste 90 dage 48 s, baseret på 31 gennemførte kørsler.
Er Grok Imagine Video bedre end Google Veo 3.1?
Det afhænger af opgaven. Grok Imagine Video (xAI) og Google Veo 3.1 (Google DeepMind) er begge modeller i kategorien Videogenerering. Sammenligningssiden viser deres priser og specifikationer side om side.
Kan Grok Imagine Video bruge et billede som input?
Ja. Send billedet i parameteren start_image.
Hvordan bruger jeg Grok Imagine Video via API'en?
Opret en Railwail API-nøgle og send din anmodning med model-ID'en grok-video. Kodeeksempler til curl, Python og JavaScript findes i API-sektionen på denne side.
