> ## Documentation Index > Fetch the complete documentation index at: https://docs.vidgo.ai/llms.txt > Use this file to discover all available pages before exploring further. # Kling 2.6 Pro Image to Video > Kling 2.6 Pro Image to Video API parameters and pricing Submit `kwaivgi/kling-v2.6-pro/image-to-video` through `POST /api/generate/submit`. Query the returned `task_id` with [Task Status](/api-manual/task-management/status), or provide a top-level `callback_url`. ## Parameters * `prompt`: Required nonblank string, 1 to 1,000 characters after trimming leading and trailing whitespace. * `duration`: Required integer: 5 or 10 seconds. Strings and fractional durations are rejected. * `aspect_ratio`: Required: 16:9, 9:16 or 1:1. This field must be submitted but does not control the output aspect ratio for image-to-video. * `sound`: Required boolean: true for audio, false for no audio. Must be false when end\_image\_url is provided. * `image_urls`: Required array containing at least one publicly accessible HTTP(S) image URL. URLs must not contain embedded credentials or whitespace. * `end_image_url`: Optional publicly accessible HTTP(S) last-frame image URL, without embedded credentials or whitespace. Omit this field when not using a last frame; empty strings and null are not accepted. Requires sound=false. * Use standard JSON types. Unknown input fields and invalid values are rejected before submission and charging. * URLs using `example.com` or `your-domain.com` are placeholders. Replace them with your own publicly accessible image URLs and callback endpoint where applicable. ## Pricing | Duration | Audio | Credits/video | USD/video | | -------- | ---------- | ------------: | --------: | | 5s | No audio | 65 | \$0.325 | | 10s | No audio | 130 | \$0.650 | | 5s | With audio | 120 | \$0.600 | | 10s | With audio | 240 | \$1.20 | 1 credit = \$0.005. The same prices apply to the Pro text-to-video and image-to-video endpoints. ## OpenAPI ````yaml api-manual/video-series/kwaivgi-kling-v2-6-pro-image-to-video.json POST /api/generate/submit openapi: 3.0.0 info: title: Vidgo API - Kling 2.6 Pro Image to Video description: Kling 2.6 Pro Image to Video version: 1.0.0 servers: - url: https://api.vidgo.ai description: Production server security: - BearerAuth: [] paths: /api/generate/submit: post: tags: - Kling 2.6 summary: Submit Kling 2.6 Pro Image to Video Task description: >- Submit a Kling 2.6 Pro image-to-video task. Place generation parameters in input; model and optional callback_url belong at the request root. Replace example.com and your-domain.com URLs with your own publicly accessible image URLs and callback endpoint where applicable. Output file URLs in examples are illustrative. operationId: submitKling26ProImageToVideo requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/SubmitRequest' examples: basic: summary: Basic request value: model: kwaivgi/kling-v2.6-pro/image-to-video input: prompt: A slow camera pan across a sunlit garden. duration: 5 sound: false aspect_ratio: '16:9' image_urls: - https://example.com/start-frame.png callback: summary: With callback value: model: kwaivgi/kling-v2.6-pro/image-to-video input: prompt: A slow camera pan across a sunlit garden. duration: 5 sound: false aspect_ratio: '16:9' image_urls: - https://example.com/start-frame.png callback_url: https://example.com/callback end-frame: summary: First and last frame, without audio value: model: kwaivgi/kling-v2.6-pro/image-to-video input: prompt: A slow camera pan across a sunlit garden. duration: 5 sound: false aspect_ratio: '16:9' image_urls: - https://example.com/start-frame.png end_image_url: https://example.com/end-frame.png responses: '200': description: Task submitted successfully content: application/json: schema: $ref: '#/components/schemas/SubmitResponse' example: code: 200 data: task_id: task-example status: running created_time: '2026-09-23T00:00:00Z' components: schemas: SubmitRequest: type: object required: - model - input properties: model: type: string description: Kling 2.6 model identifier enum: - kwaivgi/kling-v2.6-pro/image-to-video callback_url: type: string format: uri description: Webhook callback URL for result notifications example: https://your-domain.com/callback input: type: object required: - aspect_ratio - duration - image_urls - prompt - sound description: Input parameters for generation properties: prompt: type: string description: >- Required nonblank string, 1 to 1,000 characters after trimming leading and trailing whitespace. maxLength: 1000 example: A cinematic video scene minLength: 1 image_urls: type: array items: type: string format: uri description: >- Required array containing at least one publicly accessible HTTP(S) image URL. URLs must not contain embedded credentials or whitespace. example: - https://example.com/start-frame.png minItems: 1 end_image_url: type: string format: uri description: >- Optional publicly accessible HTTP(S) last-frame image URL, without embedded credentials or whitespace. Omit this field when not using a last frame; empty strings and null are not accepted. Requires sound=false. example: https://your-domain.com/end-frame.png sound: type: boolean description: >- Required boolean: true for audio, false for no audio. Must be false when end_image_url is provided. example: true aspect_ratio: type: string description: >- Required: 16:9, 9:16 or 1:1. This field must be submitted but does not control the output aspect ratio for image-to-video. enum: - '1:1' - '16:9' - '9:16' example: '16:9' duration: type: integer description: >- Required integer: 5 or 10 seconds. Strings and fractional durations are rejected. enum: - 5 - 10 example: 5 additionalProperties: false SubmitResponse: type: object required: - code - data properties: code: type: integer example: 200 description: HTTP status code data: type: object required: - task_id - status - created_time properties: task_id: type: string example: task-unified-1757165031-uyujaw3d description: Unique task identifier for status tracking status: type: string enum: - not_started - running example: running description: Accepted task status; processing may already have started. created_time: type: string format: date-time example: '2025-11-12T10:30:00' description: ISO 8601 timestamp when the task was created securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: API Key description: >- All API endpoints require Bearer Token authentication Get your API Key: Visit the [API Key Management Page](https://vidgo.ai/apis/dashboard/api-key) to get your API Key Add it to the request header: ``` Authorization: Bearer YOUR_API_KEY ``` ````