Google

This page is auto-generated from model configurations. Last updated: 2026-03-13.

This reference lists all available Google video generation models and their parameters. Use these parameter names when calling the Generation API.

Google Veo 2
Google Veo 3
Google Veo 3 Fast
Google Veo 3.1
Google Veo 3.1 Extend Video
Google Veo 3.1 Fast

Google Veo 2

Veo 2 is a realistic physics video model for simulating natural phenomena and physical interactions.

Model ID: model_veo2

Capabilities: txt2video, img2video

LLM Markdown: https://app.scenario.com/api/models/model_veo2/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	No	-	-	-	-	Describe your video
`image`	file	No	-	-	-	-	Image used as the first frame of the video. Ideal images are 16:9 or 9:16 and 1280x720 or 720x1280, depending on the aspect ratio you choose.
`aspectRatio`	string	No	`16:9`	-	-	`16:9`, `9:16`	Video aspect ratio
`duration`	number	No	`5`	-	-	`5`, `6`, `7`, `8`	Video duration
`seed`	number	No	-	-	-	-	Use a seed for reproducible results. Leave blank to use a random seed.

Google Veo 3

Veo 3 is a realistic physics video model for simulating natural phenomena and physical interactions. Veo 3 can also generate sound and music.

Model ID: model_veo3

Capabilities: txt2video, img2video

LLM Markdown: https://app.scenario.com/api/models/model_veo3/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	No	-	-	-	-	Describe your video
`image`	file	No	-	-	-	-	Image used as the first frame of the video. Ideal images are 16:9 or 9:16 and 1280x720 or 720x1280, depending on the aspect ratio you choose.
`negativePrompt`	string	No	-	-	-	-	Description of what to discourage in the generated video
`resolution`	string	No	`720p`	-	-	`720p`, `1080p`	Resolution of the generated video
`generateAudio`	boolean	Yes	`true`	-	-	-	Generate audio for the video
`aspectRatio`	string	No	`16:9`	-	-	`16:9`, `9:16`	Aspect ratio for the generated video. If the aspect ratio of the input image does not match the selected video ratio, the model may crop the image to fit.
`duration`	number	No	`8`	-	-	`4`, `6`, `8`	Video duration
`seed`	number	No	-	-	-	-	Use a seed for reproducible results. Leave blank to use a random seed.

Google Veo 3 Fast

Veo 3 Fast is a faster, more affordable version of Veo 3, Google's realistic physics video model for simulating natural phenomena and physical interactions.

Model ID: model_veo3-fast

Capabilities: txt2video, img2video

LLM Markdown: https://app.scenario.com/api/models/model_veo3-fast/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	No	-	-	-	-	Describe your video
`image`	file	No	-	-	-	-	Image used as the first frame of the video. Ideal images are 16:9 or 9:16 and 1280x720 or 720x1280, depending on the aspect ratio you choose.
`negativePrompt`	string	No	-	-	-	-	Description of what to discourage in the generated video
`resolution`	string	No	`720p`	-	-	`720p`, `1080p`	Resolution of the generated video
`generateAudio`	boolean	Yes	`true`	-	-	-	Generate audio for the video
`aspectRatio`	string	No	`16:9`	-	-	`16:9`, `9:16`	Aspect ratio for the generated video. If the aspect ratio of the input image does not match the selected video ratio, the model may crop the image to fit.
`duration`	number	No	`8`	-	-	`4`, `6`, `8`	Video duration
`seed`	number	No	-	-	-	-	Use a seed for reproducible results. Leave blank to use a random seed.

Google Veo 3.1

Veo 3.1 is a realistic physics video model for simulating natural phenomena and physical interactions. Veo 3.1 can also generate sound and music.

Model ID: model_veo3-1

Capabilities: txt2video, img2video

LLM Markdown: https://app.scenario.com/api/models/model_veo3-1/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	No	-	-	-	-	Describe your video
`image`	file	No	-	-	-	-	Image used as the first frame of the video. Ideal images are 16:9 or 9:16 and 1280x720 or 720x1280, depending on the aspect ratio you choose. First Frame and Reference Images cannot be both set.
`lastFrameImage`	file	No	-	-	-	-	Last frame of the video to start generating from. When provided with an input image, creates a transition between the two images.
`referenceImages`	file_array	No	-	-	-	-	1 to 3 reference images for subject-consistent generation (reference-to-video, or R2V). First Frame and Reference Images cannot be both set.
`referenceImagesType`	string	No	`ASSET`	-	-	`ASSET`, `STYLE`	The type of the reference image, which defines how the reference image will be used to generate the video. ASSET is a reference image that provides assets to the generated video, such as the scene, an object, a character, etc. STYLE is A reference image that provides aesthetics including colors, lighting, texture, etc., to be used as the style of the generated video, such as 'anime', 'photography', 'origami', etc.
`negativePrompt`	string	No	-	-	-	-	Description of what to discourage in the generated video
`resolution`	string	No	`720p`	-	-	`720p`, `1080p`	Resolution of the generated video
`generateAudio`	boolean	Yes	`true`	-	-	-	Generate audio for the video
`aspectRatio`	string	No	`16:9`	-	-	`16:9`, `9:16`	Aspect ratio for the generated video. If the aspect ratio of the input image does not match the selected video ratio, the model may crop the image to fit. 9:16 is not supported with reference images.
`duration`	number	No	`8`	-	-	`4`, `6`, `8`	Video duration. With Reference Images, only 8s duration is supported.
`seed`	number	No	-	-	-	-	Use a seed for reproducible results. Leave blank to use a random seed.

Google Veo 3.1 Extend Video

Use Veo 3.1 to extend videos that you previously generated with Veo by 7 seconds and up to 20 times.

Model ID: model_veo3-1-extend-video

Capabilities: video2video

LLM Markdown: https://app.scenario.com/api/models/model_veo3-1-extend-video/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	No	-	-	-	-	Describe your video
`video`	file	Yes	-	-	-	-	Input video to extend. Must be a clip in 16:9 aspect ratio, with a short-side resolution of 720p or 1080p.
`generateAudio`	boolean	Yes	`true`	-	-	-	Generate audio for the video
`seed`	number	No	-	-	-	-	Use a seed for reproducible results. Leave blank to use a random seed.

Google Veo 3.1 Fast

Veo 3.1 Fast is a faster, more affordable version of Veo 3.1, Google's realistic physics video model for simulating natural phenomena and physical interactions. Veo 3.1 Fast can also generate sound and music.

Model ID: model_veo3-1-fast

Capabilities: txt2video, img2video

LLM Markdown: https://app.scenario.com/api/models/model_veo3-1-fast/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	No	-	-	-	-	Describe your video
`image`	file	No	-	-	-	-	Image used as the first frame of the video. Ideal images are 16:9 or 9:16 and 1280x720 or 720x1280, depending on the aspect ratio you choose.
`lastFrameImage`	file	No	-	-	-	-	Last frame of the video to start generating from. When provided with an input image, creates a transition between the two images.
`negativePrompt`	string	No	-	-	-	-	Description of what to discourage in the generated video
`resolution`	string	No	`720p`	-	-	`720p`, `1080p`	Resolution of the generated video
`generateAudio`	boolean	Yes	`true`	-	-	-	Generate audio for the video
`aspectRatio`	string	No	`16:9`	-	-	`16:9`, `9:16`	Aspect ratio for the generated video. If the aspect ratio of the input image does not match the selected video ratio, the model may crop the image to fit.
`duration`	number	No	`8`	-	-	`4`, `6`, `8`	Video duration
`seed`	number	No	-	-	-	-	Use a seed for reproducible results. Leave blank to use a random seed.