ドキュメントVeo 3.1 Fast
Model

veo-3.1-fast

Lower-cost Veo tier sharing the same fields as veo-3.1, plus REFERENCE_2_VIDEO support.

Model supplement for /unified-video/quote and /unified-video/generate権限: 実際の backend API key scope 設定に依存します

向いている用途

Teams that want a faster and cheaper Veo option.

Text-to-video
1-2 image first/last frame generation
Reference-to-video with 1-3 reference images

What you can send

  • Required: model, prompt
  • Optional: images (0-3), aspectRatio, watermark, seeds, enableTranslation, mode, projectId
  • 0 images => TEXT_2_VIDEO. 1-2 images => FIRST_AND_LAST_FRAMES_2_VIDEO. 1-3 images with mode=REFERENCE_2_VIDEO => reference flow.

Field rules

aspectRatio

Supported: 16:9, 9:16, Auto.

images

Up to 2 for first/last frame mode, up to 3 for REFERENCE_2_VIDEO.

mode

Optional. TEXT_2_VIDEO, FIRST_AND_LAST_FRAMES_2_VIDEO, or REFERENCE_2_VIDEO.

watermark

Optional text watermark.

seeds

Optional integer 10000..99999.

enableTranslation

Optional boolean. Defaults to true upstream.

Pricing

Model
Points
veo-3.1-fast
17

Frontend notes

  • Use the same fields as veo-3.1 except for REFERENCE_2_VIDEO support.
  • Main difference is price tier.
  • Use callback as the main completion flow.

すぐに試したいですか?

Settings で general API key を作成してから、ここに戻ってリクエスト例をコピーしてください。

API キーを開く