Use RunComfy's API to run runwayml/runway-gen-4/turbo/image-to-video. For accepted inputs and outputs, see the model's schema.
curl --request POST \
--url https://model-api.runcomfy.net/v1/models/runwayml/runway-gen-4/turbo/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"promptImage": ""
}'Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.
Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.
curl --request POST \
--url https://model-api.runcomfy.net/v1/models/runwayml/runway-gen-4/turbo/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"promptImage": ""
}'Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").
curl --request GET \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
--header "Authorization: Bearer <token>"Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.
curl --request GET \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
--header "Authorization: Bearer <token>"Cancel a queued job by request_id, in-progress jobs cannot be cancelled.
curl --request POST \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
--header "Authorization: Bearer <token>"Provide a publicly reachable HTTPS URL. Ensure the host allows server‑side fetches (no login/cookies required) and isn't rate‑limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre‑signed URLs for private assets.
{
"type": "object",
"title": "Input",
"required": [
"promptImage"
],
"properties": {
"promptText": {
"title": "Prompt",
"description": "",
"type": "string",
"maxLength": 1000
},
"promptImage": {
"title": "Image",
"description": "Use images under 16MB, with dimensions below 8000x8000 pixels and an aspect ratio between 1:2 and 2:1.",
"type": "string",
"validations": [
{
"validation_rule": "width_pixels<",
"validation_value": 8000,
"validation_error": "The uploaded image width and height must not exceed 8000 pixels."
},
{
"validation_rule": "height_pixels<",
"validation_value": 8000,
"validation_error": "The uploaded image width and height must not exceed 8000 pixels."
},
{
"validation_rule": "width/height>",
"validation_value": 0.5,
"validation_error": "The aspect ratio range should be 1:2 to 2:1."
},
{
"validation_rule": "width/height<",
"validation_value": 2,
"validation_error": "The aspect ratio range should be 1:2 to 2:1."
},
{
"validation_rule": "file_size_mb<",
"validation_value": 16,
"validation_error": "File size must be less than 16 MB."
}
]
},
"ratio": {
"title": "Aspect Ratio (W:H)",
"description": "",
"type": "string",
"enum": [
"1584:672",
"1280:720",
"1104:832",
"960:960",
"832:1104",
"720:1280"
],
"default": "1280:720"
},
"duration": {
"title": "Duration",
"description": "",
"type": "integer",
"enum": [
5,
10
],
"default": 5
},
"seed": {
"title": "Seed",
"description": "",
"maximum": 4294967295,
"minimum": 0,
"type": "integer"
}
}
}{
"output": {
"type": "object",
"properties": {
"image": {
"type": "string",
"format": "uri",
"description": "single image URL"
},
"video": {
"type": "string",
"format": "uri",
"description": "single video URL"
},
"images": {
"type": "array",
"description": "multiple image URLs",
"items": { "type": "string", "format": "uri" }
},
"videos": {
"type": "array",
"description": "multiple video URLs",
"items": { "type": "string", "format": "uri" }
}
}
}
}