Runway Gen-4 Turbo

Video generationAvailable
by RunwayModel ID: runway-gen-4-turbo

Runway's Gen-4 Turbo on Replicate. Fast image-to-video generation producing 5s and 10s clips at 720p with strong character and scene consistency across shots.

Price
$0.060/s
Aspect ratios
16:9, 9:16, 1:1
Duration
5 or 10 s
Input β†’ output
Text + Image β†’ Video
Developer
Runway
Updated
September 23, 2026
01

Playground

Try Runway Gen-4 Turbo

Input & output

$0.060/s
Try Runway Gen-4 Turbo

0 / 2,000

What video to generate

Reference image for image-to-video

Advanced settings (1)

Optional seed for reproducibility

Output
Your video appears here.

This run

$0.30 Β· 30 credits

Billed: 5 s

For accounts without a purchase: runs above 2 credits need a top-up.

New here?

10 free credits ($0.10) when you sign up with Google

Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits.

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.
  • InputInput

    Prompt

    she walks slowly forward, a breeze blows the wheat, a lightning strike in the distance

    Length: 0:05

    Settings

    aspect_ratio
    16:9
    duration
    5
  • InputInput

    Prompt

    she stands still, wind blows her hair and the wheat, a lightning strike in the distance

    Length: 0:05

    Settings

    aspect_ratio
    16:9
    duration
    5
  • InputInput

    Prompt

    an establishing shot of paris, the camera pans during a quiet morning dawn

    Length: 0:05

    Settings

    aspect_ratio
    16:9
    duration
    5
03

About Runway Gen-4 Turbo

TL;DRAs of September 23, 2026

Runway Gen-4 Turbo is a model by Runway in the Video generation category. On Railwail, Runway Gen-4 Turbo costs $0.060 per second of video. A default run of 5 seconds costs $0.30. Supported aspect ratios: 16:9, 9:16, and 1:1. Possible lengths: 5 or 10 s.

04

Pricing

Prices in US dollars. Usage is charged from prepaid credits.
Per second$0.060 per second of video
Default run (5 s)$0.30 per run
  • 1 credit = $0.01

Cost calculator

Price calculator

Video length

Total

$30.00

3,000 credits

Per run

$0.30 Β· 30 credits

billed as 5 s

Fixed price per run, known before the run starts.

05

API

Call Runway Gen-4 Turbo with your Railwail API key. Use this model ID in the request:
curl https://railwail.com/api/v1/videos/generations \
  -H "Authorization: Bearer $RAILWAIL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "runway-gen-4-turbo",
    "prompt": "A slow drone shot over a misty pine forest at sunrise",
    "image_url": "https://example.com/first-frame.jpg"
  }'

# 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"
Set your key as RAILWAIL_API_KEYCreate API key

Videos run asynchronously: the first call returns a job_id; query /api/v1/jobs/JOB_ID until the status is completed.

06

Specifications

Model ID
runway-gen-4-turbo
Developer
Runway
Input
Text, Image
Output
Video
Aspect ratios
16:9, 9:16, 1:1
Duration
5 or 10 s
Billing
Fixed price, known before the run
Catalog entry updated
September 23, 2026

Input parameters

Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.

  • imagerequired

    Reference image for image-to-video

    Type: Text
    Default: –
    Allowed values: –
  • promptrequired

    What video to generate

    Type: Text
    Default: –
    Allowed values: up to 2,000 characters
  • seed

    Optional seed for reproducibility

    Type: Integer
    Default: –
    Allowed values: –
  • aspect_ratio
    Type: Choice
    Default: 16:9
    Allowed values: 16:9, 9:16, or 1:1
  • duration_sec
    Type: Choice
    Default: 5
    Allowed values: 5 or 10

Tags

  • replicate
  • runway
  • gen-4
  • image-to-video
  • fast
  • flagship
07

Use cases

08

Frequently asked questions

What is Runway Gen-4 Turbo?

Runway Gen-4 Turbo is a model by Runway in the Video generation category. On Railwail you can call it with an API key through the Railwail API.

How much does Runway Gen-4 Turbo cost on Railwail?

On Railwail, Runway Gen-4 Turbo costs $0.060 per second of video. A default run of 5 seconds costs $0.30. The price is known before the run starts. Usage is paid from prepaid credits; 1 credit equals $0.01.

Which settings does Runway Gen-4 Turbo support?

According to its input schema, Runway Gen-4 Turbo knows these parameters: image, prompt (up to 2,000 characters), seed, aspect_ratio (16:9, 9:16, or 1:1), and duration_sec (5 or 10).

How fast is Runway Gen-4 Turbo?

There are not enough measured runs of Runway Gen-4 Turbo on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.

Is Runway Gen-4 Turbo better than Google Veo 3.1?

That depends on the task. Runway Gen-4 Turbo (Runway) and Google Veo 3.1 (Google DeepMind) are both models in the Video generation category. The comparison page shows their prices and specifications side by side.

Compare Runway Gen-4 Turbo and Google Veo 3.1

Can Runway Gen-4 Turbo use an image as input?

Yes. Send the image in the image parameter.

How do I use Runway Gen-4 Turbo through the API?

Create a Railwail API key and send your request with the model ID runway-gen-4-turbo. Code examples for curl, Python and JavaScript are in the API section of this page.

09

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Use Runway Gen-4 Turbo via the API

One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = $0.01.