Flux Srpo Image to Image | Fast Image Editing API

FLUX SRPO — Image-to-Image

FLUX SRPO Image-to-Image is a powerful image transformation model that converts existing images into new styles based on text prompts. Upload an image, describe the transformation you want, and the model generates a stylized version while preserving the original composition.

Why It Stands Out

Image-to-image transformation: Convert images into new styles while preserving structure.
Prompt-guided generation: Describe the visual style you want to achieve.
Prompt Enhancer: Built-in AI-powered prompt optimization for better results.
Adjustable strength: Control how much the output differs from the original.
Multiple output formats: Export as JPEG or PNG based on your needs.
Fine-tuned control: Adjust guidance scale and inference steps for precise results.
Reproducibility: Use the seed parameter to recreate exact results.

Parameters

Parameter	Required	Description
prompt	Yes	Text description of the desired visual style.
image	No	Source image to transform (upload or public URL).
strength	No	Transformation intensity (0.0–1.0, default: 0.8).
num_inference_steps	No	Quality/speed trade-off (default: 28).
seed	No	Set for reproducibility; -1 for random.
guidance_scale	No	Prompt adherence strength (default: 3.5).
output_format	No	Output format: jpeg or png (default: jpeg).
enable_base64_output	No	Return base64 string instead of URL (API only).
enable_sync_mode	No	Wait for result before returning response (API only).

How to Use

Upload your source image — drag and drop a file or paste a public URL.
Write a prompt describing the visual style you want. Use the Prompt Enhancer for AI-assisted optimization.
Adjust strength — lower values preserve more of the original, higher values allow more transformation.
Adjust parameters (optional) — fine-tune guidance scale and inference steps.
Click Run and download your transformed image.

Best Use Cases

Style Transfer — Convert photos into paintings, illustrations, or artistic styles.
Visual Effects — Apply consistent visual treatments across multiple images.
Content Repurposing — Transform images into different aesthetic styles.
Design Exploration — Explore different visual directions from existing images.
Creative Projects — Experiment with unique visual transformations.

Pricing

Output	Price
Per image	$0.025

Pro Tips for Best Quality

Use lower strength (0.3–0.5) to preserve more of the original image structure.
Use higher strength (0.7–0.9) for more dramatic style transformations.
Be specific in your prompt about the style, mood, and visual treatment.
Use PNG format when you need higher quality or transparency support.
Fix the seed when iterating to compare different strength or prompt variations.

Notes

Ensure uploaded image URLs are publicly accessible.
Processing time varies based on current queue load.
Please ensure your content complies with usage guidelines.

Flux Srpo Image To Image API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/wavespeed-ai/flux-srpo/image-to-image with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Flux Srpo Image To Image below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/flux-srpo/image-to-image" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "image": "https://example.com/your-input.jpg",
    "strength": 0.8,
    "num_inference_steps": 28,
    "seed": -1,
    "guidance_scale": 3.5,
    "output_format": "jpeg",
    "enable_base64_output": false,
    "enable_sync_mode": false
}'

# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# When status is "completed", read the output from data.outputs[0].

Node.js example

// npm install wavespeed
const WaveSpeed = require('wavespeed');

const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env

const result = await client.run("wavespeed-ai/flux-srpo/image-to-image", {
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "image": "https://example.com/your-input.jpg",
        "strength": 0.8,
        "num_inference_steps": 28,
        "seed": -1,
        "guidance_scale": 3.5,
        "output_format": "jpeg",
        "enable_base64_output": false,
        "enable_sync_mode": false
});

console.log(result.outputs[0]); // → URL of the generated output

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "wavespeed-ai/flux-srpo/image-to-image",
    {
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "image": "https://example.com/your-input.jpg",
    "strength": 0.8,
    "num_inference_steps": 28,
    "seed": -1,
    "guidance_scale": 3.5,
    "output_format": "jpeg",
    "enable_base64_output": false,
    "enable_sync_mode": false
}
)

print(output["outputs"][0])  # → URL of the generated output

Flux Srpo Image To Image API — Frequently asked questions

What is the Flux Srpo Image To Image API?

Flux Srpo Image To Image is a WaveSpeedAI model for image editing, exposed as a REST API on WaveSpeedAI. FLUX SRPO [dev] is a 12B flow transformer for image-to-image generation producing high-quality images for personal and commercial use. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Flux Srpo Image To Image API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/wavespeed-ai/flux-srpo-image-to-image.

How much does Flux Srpo Image To Image cost per run?

Flux Srpo Image To Image starts at $0.025 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Flux Srpo Image To Image accept?

Key inputs: `prompt`, `image`, `seed`, `guidance_scale`, `num_inference_steps`, `enable_base64_output`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/wavespeed-ai/flux-srpo-image-to-image.

How long does Flux Srpo Image To Image take to generate?

Average end-to-end generation time on WaveSpeedAI is around 5 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.

Can I use Flux Srpo Image To Image outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (WaveSpeedAI). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

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