Gen 4 Turbo API

runway/gen4_turbo
Runway Gen-4 Turbo generates high-quality videos from images and text with fast processing and improved motion consistency.
Output
$0.05 / sec (variable)
Released
Dec 4, 2025

Overview

What is Gen 4 Turbo API?

Runway Gen-4 Turbo generates high-quality videos from images and text with fast processing and improved motion consistency.

Technical Specifications
- Supported inputs: Image, Text, Video
- Output: Video

Performance Benchmarks
[embed]

Gen 4 Turbo API Pricing
- Pricing on request

Where to Use Gen 4 Turbo

Short-form video generation
Create clips for social, ads, and product demos from text or image prompts.

Previsualization and storyboards
Rapidly prototype motion concepts before committing to production.

Uptime and performance

  • End-to-end latency (24h median): 28.2s

Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.

Use cases

Rapid prototyping of video ideas and motion concepts is documented as a use case for Gen 4 Turbo, with the model described as optimized for quick iteration and previsualization work.

Animating product mockups, product photos, and other product visuals is a documented use case, including transforming static product imagery into dynamic showcases and subtle motion clips.

Creating short social media video content from still images is a documented use case, with sources describing it as useful for scroll-stopping social posts and fast content creation from existing photos.

Pre-visualization and storyboarding for filmmakers and creative teams is a documented use case, including testing camera angles, scene compositions, and visual styles before full production.

How to use Gen 4 Turbo API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to runway/gen4_turbo.
import requests, time

headers = {"Authorization": "Bearer " + AIMLAPI_KEY}
job = requests.post(
    "https://api.aimlapi.com/v2/video/generations",
    headers=headers,
    json={
      "model": "runway/gen4_turbo",
      "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": "runway/gen4_turbo",
    "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":"runway/gen4_turbo","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.

Gen 4 Turbo API Pricing

TypePrice
Output
$0.05 / sec (variable)

Gen 4 Turbo vs other models

ModelInputOutputContextBest for
Gen 4 Turbo
This page
$0.05 / sec (variable)
Video generation
$0.2 / sec (variable)
Video generation
$1.95 / 1M tokens
$0.10136 / sec
Video generation
$0.0711 / sec
Cinematic video + native audio

Frequently asked questions

Gen 4 Turbo takes image, text, video as input and returns video.

Gen 4 Turbo became available on December 4, 2025.

Gen 4 Turbo is priced at $0.065 / sec (variable).

Gen 4 Turbo is billed per generation — a fixed charge per output rather than by prompt length.

Yes, Gen 4 Turbo accepts image input as well as a text prompt.

Gen 4 Turbo was built by Runway.

Use runway/gen4_turbo as the model id on AI/ML API.

Yes. Gen 4 Turbo is served through AI/ML API, so the same key and endpoint format used for other models applies.

Gen 4 Turbo is a video generation model from Runway that creates videos from images and text, with fast processing and consistent motion.

Yes, Gen 4 Turbo accepts image, text, and video inputs and produces video output.

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