> ## 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. # GPT Image 2.5 Sunburst Text to Image > Generate one image with GPT Image 2.5 Sunburst using a text prompt. 1. Submit the request with `VIDGO_API_KEY`. A `task_id` is returned. Keep it until the task reaches `finished` or `failed`. 2. Use [Query Task Status](/api-manual/task-management/status) to retrieve the result. If you provide a `callback_url`, Vidgo sends the result to your [webhook](/api-manual/task-management/webhooks) when the task finishes or fails. # GPT Image 2.5 Sunburst Text to Image ## Usage Guide Generate one image with GPT Image 2.5 Sunburst using a text prompt. * Set `model` to `openai/gpt-image-2.5-sunburst/text-to-image`. * Place `model` and optional `callback_url` at the request root; place workflow parameters inside `input`. * Each request produces one image. * For reference-image editing, use [Image Edit](/api-manual/image-series/gpt-image-2-5-sunburst-edit) with `model=openai/gpt-image-2.5-sunburst/edit`. ## Parameter Details * `prompt` is required. Supply non-blank text of up to 32,000 characters. * `size` defaults to `1:1`. `auto` is available only with `resolution=1K`. * Custom `WIDTHxHEIGHT` dimensions require `2K` or `4K`. Both edges must be positive multiples of 16, the longest edge must not exceed 3,840 pixels, the aspect ratio must not exceed 3:1, and total pixels must be between 655,360 and 8,294,400. A 3,840-pixel edge requires `4K`. * A transparent background requires `output_format=png` or `webp`. ## Developer Notes * Submission is asynchronous. Use the task status endpoint or a completion webhook to retrieve the final image. * Billing is per output image and depends on `quality` and the requested `resolution` tier. Aspect-ratio requests keep the selected tier; actual image dimensions may vary. * Credits are deducted on submission and refunded if the task fails. ## Optional parameters * `size` (string): Use `auto`, `1:1`, `2:3`, `3:2`, `4:3`, `3:4`, `4:5`, `5:4`, `16:9`, `9:16`, `21:9`, or custom `WIDTHxHEIGHT` dimensions. Default: `1:1`. * `resolution` (string): Output resolution tier. Accepted values: `1K`, `2K`, `4K`. Default: `1K`. * `output_format` (string): Output image format. Transparent output requires PNG or WebP. Accepted values: `png`, `jpeg`, `webp`. Default: `png`. * `quality` (string): Image quality tier. Billing depends on quality and the requested resolution tier. Accepted values: `low`, `medium`, `high`, `xhigh`, `max`. Default: `high`. * `background` (string): Background mode. Transparent output requires PNG or WebP. Accepted values: `auto`, `transparent`, `opaque`. Default: `auto`. ## OpenAPI ````yaml api-manual/image-series/gpt-image-2-5-sunburst-text-to-image.json POST /api/generate/submit openapi: 3.0.0 info: title: Vidgo API - GPT Image 2.5 Sunburst Text to Image description: Generate one image with GPT Image 2.5 Sunburst using a text prompt. version: 1.0.0 servers: - url: https://api.vidgo.ai description: Production server security: - BearerAuth: [] paths: /api/generate/submit: post: tags: - GPT Image 2.5 Sunburst Text to Image summary: Submit GPT Image 2.5 Sunburst Text to Image Task operationId: submitGPTImage25SunburstTexttoImageTask requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/SubmitRequest' examples: default: summary: Generate one image value: model: openai/gpt-image-2.5-sunburst/text-to-image callback_url: https://your-domain.com/callback input: prompt: >- A product photograph of a silver coffee maker in a bright studio. size: '1:1' resolution: 1K transparent-background: summary: Create a transparent asset value: model: openai/gpt-image-2.5-sunburst/text-to-image input: prompt: A clean cutout of a small silver robot. background: transparent output_format: webp resolution: 4K quality: xhigh custom-size: summary: Generate with custom dimensions value: model: openai/gpt-image-2.5-sunburst/text-to-image input: prompt: A panoramic city garden with soft morning light. size: 2304x1536 resolution: 2K quality: medium responses: '200': description: >- Task submission result. A task ID identifies asynchronous work; generation may still be running. content: application/json: schema: $ref: '#/components/schemas/SubmitResponse' '400': description: Invalid request parameters content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: SubmitRequest: type: object required: - model - input additionalProperties: false properties: model: type: string example: openai/gpt-image-2.5-sunburst/text-to-image callback_url: type: string format: uri description: Optional webhook URL for completion or failure notifications. example: https://your-domain.com/callback input: type: object required: - prompt additionalProperties: false properties: prompt: type: string minLength: 1 maxLength: 32000 pattern: \S description: |- Text describing the desired image. Include at least one non-whitespace character. size: type: string description: >- Output aspect ratio or WIDTHxHEIGHT. Defaults to 1:1. auto requires 1K. Custom dimensions require 2K or 4K, multiples of 16, maximum edge 3840, aspect ratio at most 3:1, and 655360–8294400 pixels. A 3840-pixel edge requires 4K. pattern: >- ^(?:auto|1:1|2:3|3:2|4:3|3:4|4:5|5:4|16:9|9:16|21:9|\s*\d+\s*[xX]\s*\d+\s*)$ default: '1:1' resolution: type: string enum: - 1K - 2K - 4K default: 1K description: Output resolution tier. output_format: type: string enum: - png - jpeg - webp default: png description: |- Output image format. Transparent output requires PNG or WebP. quality: type: string enum: - low - medium - high - xhigh - max default: high description: |- Image quality tier. Billing depends on quality and the requested resolution tier. background: type: string enum: - auto - transparent - opaque default: auto description: |- Background mode. Transparent output requires PNG or WebP. SubmitResponse: type: object required: - code - data properties: code: type: integer example: 200 data: type: object required: - task_id - status - created_time properties: task_id: type: string example: task-example-001 status: type: string example: running created_time: type: string format: date-time example: '2026-10-09T10:30:00' ErrorResponse: type: object required: - code - error properties: code: type: integer example: 400 error: type: object properties: message: type: string example: Invalid request parameters type: type: string example: invalid_request_error securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: API Key description: 'Use `Authorization: Bearer VIDGO_API_KEY`.' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.