Google Veo 3 First-Last-Frame to Video

api node/video/Veo

Veo3FirstLastFrameNode

Generate video using prompt and first and last frames.

Example

JSON Example

{
  "class_type": "Veo3FirstLastFrameNode",
  "inputs": {
    "prompt": "",
    "negative_prompt": "",
    "resolution": null,
    "aspect_ratio": "16:9",
    "duration": 8,
    "seed": 0,
    "first_frame": [
      "node_id",
      0
    ],
    "last_frame": [
      "node_id",
      0
    ],
    "model": "veo-3.1-fast-generate",
    "generate_audio": true
  }
}

This example shows required inputs only. Connection values like ["node_id", 0] should reference actual node IDs from your workflow.

Inputs

Name	Type	Status	Constraints	Default
prompt?	STRING	required	-	""
negative_prompt?	STRING	required	-	""
resolution	COMBO	required	-	-
aspect_ratio?	COMBO	required	-	"16:9"
duration?	INT	required	min: 4, max: 8, step: 2	8
seed?	INT	required	min: 0, max: 4294967295, step: 1	0
first_frame?	IMAGE	required	-	-
last_frame?	IMAGE	required	-	-
model	COMBO	required	-	"veo-3.1-fast-generate"
generate_audio?	BOOLEAN	required	-	true

Outputs

Index	Name	Type	Is List	Connection Reference
0	VIDEO	VIDEO	No	["{node_id}", 0]

How to connect to these outputs

To connect another node's input to an output from this node, use the connection reference format:

["node_id", output_index]

Where node_id is the ID of this Veo3FirstLastFrameNode node in your workflow, and output_index is the index from the table above.

Example

If this node has ID "5" in your workflow:

• VIDEO (VIDEO): ["5", 0]

Package: comfyui-api-nodes