Google

Veo 3.1 veo 3.1

Video

Highest-fidelity Veo 3.1 generation with 4/6/8s duration control

from $2.50 / call Veo 3.1 veo 3.1 API reference →
Model health Insufficient data
curl -X POST https://runapi.ai/api/v1/veo_3_1/text_to_video \
  -H "Authorization: Bearer $RUNAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "veo-3.1",
  "prompt": "Generate an 8-second cinematic drone shot of a coastal highway at golden hour, with waves crashing below and ambient wind audio."
}'
https://runapi.ai 1 endpoint

3 versions available

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Model
Mode
Estimated: $2.50 / video
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Specifications

Technical details

Provider Google
Model ID veo-3.1
Modality Video
Task types Asynchronous
API endpoint /api/v1/veo_3_1/text_to_video
Billing unit call
Input parameters aspect_ratio, duration_seconds, first_frame_image_url, input_mode, last_frame_image_url, reference_image_urls
Max duration 4s, 6s, 8s
Aspect ratios 16:9, 9:16, auto
Catalog status Operational
HOW IT WORKS

Use This Model in 3 Steps

  1. Get Your Key

    Sign up for free and create an API key for veo-3.1 from the dashboard.

  2. Send a Request

    POST to /api/v1/veo_3_1/text_to_video with the veo-3.1 model slug and your parameters.

  3. Get Results

    Poll the task or follow the callback to retrieve the completed veo-3.1 result.

What this model offers

Flexible parameters

Configure 6 documented parameters, including aspect_ratio, duration_seconds, first_frame_image_url, input_mode, last_frame_image_url.

Endpoint coverage

Exposes 1 public endpoint(s): text_to_video.

Usage-based billing

Metered by call with no subscription requirement.

Veo 3.1 veo 3.1 Pricing

Endpoint
Resolution
Duration
Price
text_to_video
Not available
call
$2.50 / video
API REFERENCE

Endpoint Specification

Endpoint
POST /api/v1/veo_3_1/text_to_video
Model ID
veo-3.1
Task Types
text_to_video
Max Duration
8 seconds
Resolutions
Unavailable
Aspect Ratios
16:9, 9:16, auto
Output Format
Unavailable
Avg Generation Time
Unavailable

Request parameters

input_mode

Optional value

No description available. (text, first_and_last_frames, reference)

aspect_ratio

Optional value

No description available. (16:9, 9:16, auto)

duration_seconds

Optional value

No description available. (4, 6, 8)

last_frame_image_url

Optional value

No description available.

reference_image_urls

Optional value

No description available.

first_frame_image_url

Optional value

No description available.

USE CASES

Ad & social content

Generate product launch clips and short-form ads from a text brief, cutting production from weeks to hours.

E-learning

Convert lesson scripts into animated explainer videos at scale without a camera or crew.

Creator workflows

Produce viral short-form content for social platforms directly from a prompt.

FAQ

Frequently asked questions about Veo 3.1 veo 3.1

How do I select veo-3.1?

Pass the model ID shown in the quickstart.

What's the rate limit on this variant?

Per-key rate limits scale with your usage tier. The pricing page shows current limits. If you need higher throughput, contact support to discuss tier upgrades.

Can I switch variants later?

Yes. Variant is a parameter in the request. Switch by changing the model ID — no code changes, no re-authentication, no separate billing setup. All variants share the same API key and request shape.

Does it stream?

Where streaming is available, RunAPI streams end-to-end. LLM models support token-level streaming. Media models use async task polling or webhook callbacks for result delivery.

Where do I report quality issues?

Open an issue on the public GitHub repo or email support at [email protected]. Include the task ID and model ID so the team can investigate the specific generation.

Do I need a separate provider account?

No. Your RunAPI API key is enough to access this variant and every other model in the catalog. You do not need accounts with the underlying provider.

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