by Google

The Veo 3.1 Fast API for clips on a production cadence: text, first and last frame, up to 3 reference images and extension, 720p with sound from $0.36 a clip.

google/veo-3.1-fast/text-to-video
  • 4–8s clips
  • Start and end frames
  • Up to 3 reference images
  • Create Video
  • Image to Video
  • Reference to Video
  • Extend Video

About Veo 3.1 Fast

The Veo 3.1 Fast API for clips on a production cadence: text, first and last frame, up to 3 reference images and extension, 720p with sound from $0.36 a clip.

Call it with the model name google/veo-3.1-fast/text-to-video on POST /jobs/createTask, from $0.36.

Introduction

Veo 3.1 Fast text-to-video turns a written scene into a 4, 6 or 8 second 720p clip with sound, in 16:9 or 9:16.

google/veo-3.1-fast/text-to-video

Request parameters

ParameterRequiredDescription
promptYesDescribe what you want to make.
aspect_ratioNoThe shape of the frame: wide, square or tall. 16:9 · 9:16 · Default: 16:9
duration_secondsNoLength of the generated clip. 4 · 6 · 8 · Default: 8

Pricing

Prices are in USD. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.

OptionUSD per run
duration_seconds 4$0.36
duration_seconds 6$0.54
duration_seconds 8$0.72

Send the same request body to POST /jobs/quote to see the estimated and maximum USD charge before running. A quote does not run the task or charge your balance.

API quick start

Call the Veo 3.1 Fast API in three steps

  1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow-. API calls use your separate USD balance.
  2. Send the request. POST /jobs/createTask with model google/veo-3.1-fast/text-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
  3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.
# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "google/veo-3.1-fast/text-to-video",
  "input": {
    "prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
    "aspect_ratio": "16:9",
    "duration_seconds": 8
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Veo 3.1 Fast price on other platforms

OptionsPopNowfal
720p · 4sGuaranteed−40% vs fal$0.3600/ request$0.6000/ request
720p · 6sGuaranteed−40% vs fal$0.5400/ request$0.9000/ request
720p · 8sGuaranteed−40% vs fal$0.7200/ request$1.2000/ request

Each platform's public API list price for the same model and settings, checked Nov 6, 2026.

Veo 3.1 Fast API questions

How much does the Veo 3.1 Fast API cost?

Veo 3.1 Fast starts at $0.36 per run with Create Video, its cheapest task. Prices by option: 4 $0.36 per run, 6 $0.54 per run, 8 $0.72 per run. The API uses a separate USD balance. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.

What is the model name for Veo 3.1 Fast in the API?

Put google/veo-3.1-fast/text-to-video for Create Video; google/veo-3.1-fast/image-to-video for Image to Video; google/veo-3.1-fast/reference-to-video for Reference to Video; google/veo-3.1-fast/video-extend for Extend Video in the model field of POST /jobs/createTask.

What are the limits of the Veo 3.1 Fast API?

Clip length: 4–8 s; Aspect ratios: 16:9 · 9:16; Prompt length (characters): 4,000. Requests outside these limits are rejected before anything is charged.

Can I try Veo 3.1 Fast without writing code?

Run Veo 3.1 Fast in the Playground with your API USD balance, without an API key. Each run appears in your developer history with its matching code.

All Veo models

More about Veo 3.1 Fast