kwaivgi/kling-image/o3
Kling Image O3 by KwaiVGI - generate stunning images from text prompts with state-of-the-art AI. Supports multiple aspect ratios, styles, and high-resolution output for creative and commercial use.
Example output — click Run to generate your own
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OpenAI-compatible endpoint with unified authentication and usage tracking.
https://api.sandbase.ai/v1/runkwaivgi/kling-image/o3Input Schema
4 parameters · 1 required · 3 optional
| Parameter | Type | Required | Description |
|---|---|---|---|
prompt | string | Required | Text prompt for image generation. Max 2500 characters. · Max length: 2500 |
resolution | string | Optional | Image generation resolution. 1K: standard, 2K: high-res, 4K: ultra high-res. · Options: 1K, 2K, 4K · Default: "1K" 1K2K4K |
aspect_ratio | string | Optional | The aspect ratio of the generated image. · Options: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16 21:916:93:24:35:41:14:53:42:39:16 |
output_format | string | Optional | The format of the generated image. · Options: jpeg, png · Default: "png" jpegpng |
Output Schema
| Field | Type | Description |
|---|---|---|
id | string | Unique identifier for the generation task |
status | string | Task status: pending, running, completed, failed, timeout |
model | string | Model used for the generation |
outputs | array | Array of output items |
outputs[].url | string | URL of the generated artifact |
outputs[].content_type | string | MIME type (e.g. image/png, video/mp4) |
error | object | null | Error details if failed, null on success |
error.type | string | Machine-readable error type code |
error.message | string | Human-readable error description |
Async Workflow
This model uses asynchronous execution. Submit a request and poll for the result.
- Submit — POST to /v1/run, receive an
id - Poll — GET /v1/run/{id} until status is
completed,failed, ortimeout - Retrieve — Read
outputsfrom the completed response
Code Examples
Ready-to-run snippets
# Step 1: Submit
curl -X POST https://api.sandbase.ai/v1/run \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "kwaivgi/kling-image/o3",
"prompt": "A poster design says 'Kling Omni 3 Image is available on fal' with a cool font in the background as several rows and big font size. Big gap between the rows. High fashion model wearing a dress made entirely of living moss and small white flowers, standing in an abandoned greenhouse, shafts of light, editorial photography.",
"resolution": "1K",
"output_format": "png"
}'
# Step 2: Poll result (replace <id>)
curl https://api.sandbase.ai/v1/run/<id> \
-H "Authorization: Bearer YOUR_API_KEY"API README
Kling Image O3
Kling Image O3 turns a written art direction into a new image, keeping the request focused on the prompt rather than reference media. Its 2,500-character prompt allowance leaves enough room to describe subject, setting, lighting, typography, and visual treatment in one brief.
The endpoint spans ten aspect ratios and three resolution tiers, including a 4K option for the most detailed delivery. Output can be returned as PNG or JPEG, so the same generation route can serve both lossless creative assets and compact review files.
Highlights
Prompt-first creation. Generate a fresh composition from as much as 2,500 characters of written direction.
4K ceiling. Resolution choices run from 1K through 2K to 4K, giving O3 an ultra-high-resolution delivery tier.
Broad canvas coverage. Ten ratio presets range from cinematic 21:9 to vertical 9:16, with square and print-friendly shapes between them.
Two familiar image formats. Request PNG for lossless assets or JPEG when a smaller delivery is preferable.
Pricing
| Billing unit | Price |
|---|---|
| Per request | $0.028 |
When to Use
| ✅ Good fit | ❌ Consider alternatives |
|---|---|
| The model's named workflow matches the source material and intended output | A different input modality or model route is required |
| A managed asynchronous result is suitable for the production pipeline | A synchronous, interactive editor is essential |
| The documented controls cover the required duration, framing, or format | The project needs controls outside this endpoint's schema |
| Creative iteration benefits from a repeatable request structure | Exact deterministic pixels, frames, geometry, or samples are mandatory |
| A finished downloadable media asset is the desired deliverable | Editable source layers or a native project file are required |
Prompt Guide
For generation, state the intended result first, then add the subject or source treatment, progression, style, and delivery constraints. Keep one creative variable per phrase, use the documented field names for controls, and change one setting at a time when comparing results.
{
"aspect_ratio": "21:9",
"output_format": "png",
"prompt": "A poster design says 'Kling Omni 3 Image is available on fal' with a cool font in the background as several rows and big font size. Big gap between the rows. High fashion model wearing a dress made entirely of living moss and small white flowers, standing in an abandoned greenhouse, shafts of light, editorial photography.",
"resolution": "1K"
}
Technical Specs
| Spec | Value |
|---|---|
| Model ID | kwaivgi/kling-image/o3 |
| Inputs | aspect_ratio, output_format, prompt, resolution |
| Required inputs | prompt |
| Output fields | content_type, url |
| Execution | Async (submit, then poll for result) |
| Resolution | 1K / 2K / 4K |
| Aspect Ratio | 21:9 / 16:9 / 3:2 / 4:3 / 5:4 / 1:1 / 4:5 / 3:4 / 2:3 / 9:16 |
| Output Format | jpeg / png |