Hidream O1 Image Dev Edit | Fast Image Editing API

HiDream-O1-Image Dev (Edit)

HiDream-O1-Image Dev is the distilled variant of HiDream-O1-Image. The same single native model handles text-to-image, prompt-driven editing, and subject-driven personalization at up to 2K (≈2048×2048) — but tuned for fast, low-step inference so you pay less and wait less per edit. Provide one or more reference images plus an instruction; the model edits while keeping identity, composition, and lighting stable.

Why Choose This?

Distilled for speed — Fewer denoising steps than the full HiDream-O1-Image, lower latency per edit.
Lower cost — Half the price of the full model, ideal for batch editing, e-commerce variations, and rapid iteration.
Identity-preserving edits — Keeps the subject, pose, and overall composition stable while applying the requested change.
Multi-reference support — Accepts one image for plain editing, or multiple reference images for subject-driven personalization (consistent characters, products, IPs).
High-resolution output — Up to ~2048×2048 with sharp detail and natural lighting.
Strong instruction following — Faithfully interprets edit instructions (wardrobe, scene tweaks, object swaps, style changes, on-image text).
Multiple output formats — JPEG, PNG, or WEBP.
Reproducibility — Use a fixed seed to recreate exact results.

Parameters

Parameter	Required	Description
prompt	Yes	Text instruction describing the edit you want to make.
images	Yes	Reference images for editing or subject-driven personalization. Each entry is a public URL or base64 data URI (PNG, JPEG, JPG, or WebP, up to 50MB, aspect ratio between 1:4 and 4:1). Pass one image for editing, multiple for subject-driven personalization.
size	No	Output image size as `WIDTHHEIGHT` (default: `20482048`). The model snaps to the closest supported resolution.
output_format	No	Output format: `jpeg`, `png`, or `webp` (default: `jpeg`).
seed	No	Random seed for reproducible generation.
enable_sync_mode	No	API only — wait for the result and return it inline.
enable_base64_output	No	API only — return the image as a base64 string instead of a URL.

How to Use

Upload your reference image(s) — drag and drop or paste publicly accessible URLs. One image for editing, multiple for subject-driven personalization.
Write your edit instruction — describe both the change and what to keep (e.g., "Change the jacket to black leather. Keep the person, pose, and background unchanged.").
Choose size (optional) — keep the source aspect ratio or pick a new one.
Set output_format — JPEG for compact files, PNG for lossless, WEBP for balance.
Set seed (optional) — pin a number to reproduce the same edit.
Run — submit the request and download the edited image.

Pricing

Flat rate per edit — half the price of the full HiDream-O1-Image (Edit).

Output	Cost
Per image edit	$0.02

Best Use Cases

Batch e-commerce variations — Multiple colorways or styling options from a hero shot, at scale.
Subject-driven personalization — Pass several reference images to keep a character / product / IP consistent across new scenes.
Wardrobe & accessory edits — Swap clothing color/style, add/remove glasses, hats, jewelry.
Background & scene tweaks — Replace backgrounds or swap props while keeping the subject pixel-stable.
Object add / remove / replace — Cleanly modify specific elements without disturbing the rest of the scene.
Style transfer — Apply a new look while preserving the subject's identity.
Marketing iteration — Quickly produce many creative variants per source image at low cost.

Dev vs. Full — Which to Pick?

	HiDream-O1-Image Dev (Edit)	HiDream-O1-Image (Edit, Full)
Speed	Faster (distilled, fewer steps)	Standard
Cost / edit	$0.02	$0.04
Quality ceiling	High	Highest
Best for	Batches, drafts, low-cost edits	Final hero edits

Prompting Guide

For clean results, specify both the change and what to preserve:

Template:

Keep the same person, pose, and background. Change [target edit]. Keep lighting natural and consistent.

Examples:

"Keep the same person and pose. Change the outfit to a light gray sweater and add gold thin-rimmed glasses. Keep the background and lighting unchanged."
"Keep identity and composition. Replace the jacket with a black leather jacket; keep realistic fabric texture and natural shadows."
"Keep the subject unchanged. Remove the object on the table and keep the scene lighting consistent."
"Keep the person and pose. Change the background to a sunlit beach at golden hour."

For subject-driven personalization, pass several reference images of the same subject (different angles / outfits / lighting) and describe the new scene; the model uses them jointly to keep identity consistent.

Pro Tips

Always state what should stay the same — it dramatically improves identity preservation.
For multi-reference personalization, give 3–5 varied shots of the subject for best identity locking.
Reference elements explicitly: "the text on the shirt", "the background", "the person on the left".
Pin a seed while iterating so you can compare prompt variants against a fixed baseline.
For multi-step edits, prefer sequential single-purpose prompts over one long compound instruction.
Use png for lossless edits when output will be re-edited downstream.

Notes

If using URLs for the source images, ensure they are publicly accessible.
The enable_base64_output and enable_sync_mode options are only available through the API.
Higher resolutions may slightly increase processing time.
Ensure prompts comply with content guidelines.

Related Models

HiDream-O1-Image Dev · Text-to-Image — Same distilled model, in text-to-image mode.
HiDream-O1-Image · Edit — The full (non-distilled) edit model for highest fidelity.
HiDream-O1-Image · Text-to-Image — Full model in text-to-image mode.

Hidream O1 Image Dev Edit API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/wavespeed-ai/hidream-o1-image-dev/edit 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 Hidream O1 Image Dev Edit below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/hidream-o1-image-dev/edit" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "size": "2048*2048",
    "output_format": "jpeg",
    "enable_sync_mode": false,
    "enable_base64_output": 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/hidream-o1-image-dev/edit", {
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "size": "2048*2048",
        "output_format": "jpeg",
        "enable_sync_mode": false,
        "enable_base64_output": false
});

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

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "wavespeed-ai/hidream-o1-image-dev/edit",
    {
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "size": "2048*2048",
    "output_format": "jpeg",
    "enable_sync_mode": false,
    "enable_base64_output": false
}
)

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

Hidream O1 Image Dev Edit API — Frequently asked questions

What is the Hidream O1 Image Dev Edit API?

Hidream O1 Image Dev Edit is a WaveSpeedAI model for image editing, exposed as a REST API on WaveSpeedAI. HiDream-O1-Image Dev (Edit) is the distilled, fast-inference variant of HiDream-O1-Image in edit mode — accepts a source image plus an instruction (and optional extra references for subject-driven personalization) at up to 2K resolution, at half the price of the full model. 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 Hidream O1 Image Dev Edit 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/hidream-o1-image-dev-edit.

How much does Hidream O1 Image Dev Edit cost per run?

Hidream O1 Image Dev Edit starts at $0.020 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 Hidream O1 Image Dev Edit accept?

Key inputs: `prompt`, `images`, `size`, `enable_base64_output`, `enable_sync_mode`, `output_format`. 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/hidream-o1-image-dev-edit.

How do I get started with the Hidream O1 Image Dev Edit API?

Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.

Can I use Hidream O1 Image Dev Edit 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.

ExamplesView all

Related Models

README

HiDream-O1-Image Dev (Edit)

Why Choose This?

Parameters

How to Use

Pricing

Best Use Cases

Dev vs. Full — Which to Pick?

Prompting Guide

Pro Tips

Notes

Related Models

Hidream O1 Image Dev Edit API — Quick start

Hidream O1 Image Dev Edit API — Frequently asked questions