Is there a free tier for Veo 3.1?

No. You add credit and pay Veo 3.1's list rate for each request — seats, projects, and API keys are free, and pay-as-you-go credit never expires.

Am I charged for failed requests?

No. A request that fails without returning a result is not billed. If a response fails part-way, the tokens already processed before the failure are charged.

Is Veo 3.1 included in Token Plans?

No. Veo 3.1 is pay-as-you-go only; Token Plans cover the other text models in the catalog.

Does Veo 3.1 support tool calling and vision?

Veo 3.1 takes text in and returns text.

Is it the real Veo 3.1?

Yes. A request for veo-3.1-generate-preview is answered by Veo 3.1 from Google, billed at its published list price. Inferray never substitutes a different or smaller model.

GoogleVideoveo-3.1-generate-preview

Veo 3.1

Veo 3.1 for Video generation.

Explore Veo 3.1 for Video generation through the unified API. Supported interfaces and current availability are shown below.

Video generation

Get your API key Try in playground Compare models

Model details

Context window: 33K tokens
Max output: 1 tokens
Input: Text
Output: Video
Capabilities: —
Interfaces: OpenAI-style Video Generation

Pricing

Per second of generated video. The Inferray price is what you are charged — no gateway fee is added on top of it.

Veo 3.1 pricing.
Output	Price
Standard, with audio	$0.40 / second
Standard, no audio	$0.20 / second
4k, with audio	$0.60 / second
4k, no audio	$0.40 / second

Why teams pick it

Veo 3.1 for Video generation.

Call Veo 3.1

Veo 3.1 answers on the API below — pick the one your code already speaks and just swap in your Inferray key.

/v1/videosOpenAI-style Video Generation · openai SDK or plain HTTP

curl https://api.inferray.com/v1/videos \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  --data-binary @- <<JSON
{
  "model": "veo-3.1-generate-preview",
  "prompt": "A quartz crystal on a workbench",
  "seconds": ${VIDEO_SECONDS:?Set a supported duration for this model}
}
JSON

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Questions about this model

Is there a free tier for Veo 3.1?: No. You add credit and pay Veo 3.1's list rate for each request — seats, projects, and API keys are free, and pay-as-you-go credit never expires.
Am I charged for failed requests?: No. A request that fails without returning a result is not billed. If a response fails part-way, the tokens already processed before the failure are charged.
Is Veo 3.1 included in Token Plans?: No. Veo 3.1 is pay-as-you-go only; Token Plans cover the other text models in the catalog.
Does Veo 3.1 support tool calling and vision?: Veo 3.1 takes text in and returns text.
Is it the real Veo 3.1?: Yes. A request for veo-3.1-generate-preview is answered by Veo 3.1 from Google, billed at its published list price. Inferray never substitutes a different or smaller model.