Model Overview

veo3.1_fast

Google Veo 3.1 video generation model.

videotask
Pricing
720p$ 0.15 / video
1080p$ 0.20 / video
4K$ 0.45 / video

Public pricing comes from the currently exposed Xenodia model catalog and already reflects the minimum visible channel pricing.

Answer-first summary

Use this model when you need a public Xenodia surface with discoverable parameters, stable routing metadata, and documented request modes instead of provider-specific guesswork.

Recommended workflow: query /v1/models, inspect this model's capabilities, then call the relevant endpoint with only documented fields.

curl -s https://api.xenodia.xyz/v1/models

Capabilities

  • Brand: google
  • Upstream ID: veo3.1_fast
  • Async support: Yes
  • Request modes: task
  • Reference input: Public URL · max 3

Supported parameters

promptrequired

Text prompt describing the desired video content. Required for all generation modes.

imageUrls

Image URL list for image-to-video, first-and-last-frame, or reference-to-video modes.

model

Documented in model discovery.

veo3.1veo3.1_fastveo3.1_lite
generationType

Optional generation mode. If omitted, the video model determines the mode from imageUrls.

TEXT_2_VIDEOFIRST_AND_LAST_FRAMES_2_VIDEOREFERENCE_2_VIDEO
aspect_ratio

Documented in model discovery.

16:99:16Auto
seeds

Optional random seed. Same seed can produce similar video content.

callBackUrl

Optional completion callback URL. Xenodia also returns /v1/tasks/:taskId for polling.

enableFallback

Deprecated fallback switch. Passed through when provided.

enableTranslation

Enable prompt translation to English before generation.

watermark

Optional watermark text added to the generated video.

resolution

Documented in model discovery.

720p1080p4k

Reference input rules

  • Transport: url
  • Field names: imageUrls
  • Max items: 3
  • Accepted MIME: image/jpeg, image/png, image/webp

FAQ

What can veo3.1_fast do on Xenodia?

veo3.1_fast is exposed through Xenodia as a public model page with pricing, modalities, parameters, and documented request modes.

Does veo3.1_fast support async tasks?

veo3.1_fast supports async task mode through Xenodia's public task resource.