How is Z-Image Pro different from Z-Image?

Z-Image is moderated, picks an aspect ratio and has a content-filter switch. Z-Image Pro runs with the content filter off, takes pixel-exact width and height up to 2560, adds seed control and a prompt enhancer, and is API-only. Moderated work goes to Z-Image; unfiltered output goes to Z-Image Pro.

Can I use Z-Image Pro in the playground?

No. Z-Image Pro is API-only: browser generation is disabled for every account, and a session request is rejected before any credits are charged. Create an API key and call the endpoint. The form on this page shows the exact fields.

Does Z-Image Pro have a content filter or any restrictions?

The content filter is off on this channel, and there is no switch for it because there is nothing to turn off. Sending content_filter returns a 400 error instead of being silently ignored. Illegal and prohibited content is always blocked. If you need upstream moderation, use Z-Image. Platform terms still apply to what you generate.

What is the maximum resolution Z-Image Pro supports?

Any width and height from 256 to 2560 pixels, set independently, so the maximum is 2560 × 2560 and the default is 1024 × 1024. No aspect-ratio field: Z-Image Pro renders exactly the dimensions you request, at the same price for every size.

Does Z-Image Pro support image editing?

No. Z-Image Pro is text-to-image only: no image input, one image per request. To edit an existing image, use a model that accepts an image_url.

How should I write Z-Image Pro prompts?

Write the prompt in English, the language Z-Image Pro was trained on. One paragraph of roughly 90 to 170 words: the medium, the people and what they look like, the main action once, the setting, then camera, light and colour. Skip tag lists and quality slogans; put visible lettering in straight double quotes. Prefer tags? Set prompt_extend to true and Z-Image Pro rewrites them.

Is Z-Image Pro free or paid?

Paid. Completed generations are charged at the flat per-image rate in the pricing table above. Eligible new accounts may receive promotional test credits, shown at signup or in the dashboard. Failed and rejected Z-Image Pro requests are refunded automatically.

Does Z-Image Pro require a monthly subscription?

No. Pricing is pay-as-you-go: $1 buys 1,000 credits and credits never expire. You pay per Z-Image Pro image generated, not per month.

How do I get a Z-Image Pro API key?

Sign up and create a key in the dashboard, no card required. Pass it as a Bearer token in the Authorization header. That key is the only way to call Z-Image Pro; the website playground is disabled for this model.

Z-Image Pro — Unfiltered Text-to-Image at Any Size

Z-Image Pro is the unfiltered channel of the Z-Image family. Send a prompt, set width and height in pixels, get one image back at a flat price. API key only: content filter off, no playground. Illegal and prohibited content is always blocked.

Highlights: Text-to-image with the content filter off · any size up to 2560 px · seed control
Best for: Products that need unfiltered image generation through an API
Input: Text prompt (API key only)
Output: One image per request

Input

Prompt*

Required · no length limit

Width

256–2560 · default 1024

Height

256–2560 · default 1024

Seed

0–2147483647 · 0 or empty = random

Prompt enhancer

Off by default · your prompt is used as written

Estimated cost~$0.0220 credits

Content filter offAPI only

This model runs with the content filter off and is available through the API only. Use your API key to generate. Illegal and prohibited content is always blocked.

Result

Try one of these prompts

Pricing

Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.

First test cost

$0.0220 credits

One sample at the cheapest tier (1 image).

Testing budget guide

Add credits

$10

≈ 500 tests

$50

≈ 2500 tests

$100

≈ 5000 tests

Per image: $0.02; Price · 1 image

What is Z-Image Pro?

Z-Image Pro is the unfiltered text-to-image channel of the Z-Image family, exposed on reAPI as one async endpoint with five parameters: a prompt, width and height in pixels from 256 to 2560, an optional seed, and an optional prompt-rewrite flag. It takes no image input, has no content-filter switch because it runs with the content filter off on a single route, returns one image per request at a flat rate, and is available only through an API key. Illegal and prohibited content is always blocked.

Z-Image Pro — unfiltered text-to-image with pixel-exact sizing, on reAPI

What you can build with this model

Real-world workflows and production use cases you can build and ship with this model.

Z-Image Pro poster — one prompt, one image, API-key access, flat price per image

Unfiltered generation through your own API key

Most hosted image models moderate every prompt. Z-Image Pro runs with the content filter off, and there is no filter parameter because there is no filtered route. Dark-fantasy boards, mature-rated comic panels, swimwear and body-art shoots all go through the same way: send the prompt, get the image, pay one flat rate. Illegal and prohibited content is always blocked.

Read the API docs

Z-Image Pro poster — any size up to 2560, width and height set in pixels

Z-Image Pro at any size up to 2560 pixels

Set width and height in pixels instead of picking from an aspect-ratio list. A 2560 × 1440 wallpaper costs the same as a 512-pixel avatar, and a phone-tall 1080 × 2340 frame is just another Z-Image Pro request.

Z-Image Pro poster — written like a caption, dense natural-language prompts, seed control

Z-Image Pro prompts, written like captions

Z-Image Pro reads one flowing paragraph better than a pile of tags. Pin a seed and the same prompt comes back the same way, so character sheets and ad variants stay consistent while you change one detail. Prefer tags anyway? Turn on the prompt enhancer and let it do the rewriting.

Why reAPI for Z-Image Pro

Content filter off by design, not by toggle

One route, content filter off. Nothing to switch off, and no moderated twin that a request can quietly land on. Illegal and prohibited content is always blocked. If your product needs unfiltered images through an API, Z-Image Pro is the short way there.

Sizes in pixels, up to 2560

Any width, any height, 256 to 2560 on each side. Z-Image Pro renders the exact frame you ask for and charges the same at 256 or 2560.

Flat price, async, one endpoint

1 credit equals $0.001 USD. Z-Image Pro bills one rate per image, whatever the size or options. POST, get a task_id, poll. Failed requests are refunded.

Z-Image Pro vs FLUX

Both are pay-as-you-go text-to-image endpoints with seed control. Z-Image Pro is the unfiltered Z-Image channel with one flat rate and pixel-exact sizing; FLUX moderates every request and bills by the megapixel.

Capability

Z-Image Pro on reAPI

FLUX

Content moderation

Content filter off on this channel: no filter parameter, API-key access only. Illegal and prohibited content is always blocked.

Inputs and outputs are moderated, tunable with safety_tolerance but never fully off; flagged results return Content Moderated.

Pricing structure

Z-Image Pro charges one flat rate per image at any size; seed and prompt rewriting add nothing.

Per megapixel: a flat first megapixel, each extra one added, reference images counted too.

Maximum size

Width and height from 256 to 2560 pixels, set independently, up to about 6.5 megapixels.

Up to 4 megapixels on FLUX.2; FLUX.1 endpoints stop at 1440 pixels per side.

Prompt rewriting

Built in: prompt_extend rewrites a short or tag-style prompt into the caption style Z-Image Pro was trained on.

No documented prompt-rewrite option; you write the final prompt yourself.

Modality

Text-to-image only, one image per request.

Text-to-image plus editing with reference images.

Reproducibility

Seed from 0 to 2147483647; 0 or null draws a fresh one.

Seed supported for reproducible output.

Comparison reflects publicly documented behavior at the time of writing. Model behavior and pricing can change; check the pricing card above and the API docs for current values.

Integrate Z-Image Pro in three steps

step 01
Create an API key
Z-Image Pro is API-only. Sign up, create a key in the dashboard, and pass it as a Bearer token.
Open
step 02
Submit a generation
POST to /api/v1/images/generations with model: z-image-pro, a prompt, and optional width, height, seed and prompt_extend. Z-Image Pro returns a task_id at once.
Open
step 03
Poll the result
GET /api/v1/tasks/:id until status is completed. The Z-Image Pro image URL stays valid for 30 days. Copy it to your own storage if you need it longer.
Open

docs/api/z-image-pro

API reference

Drop-in code and the full parameter table.

View full reference

curl -X POST https://reapi.ai/api/v1/images/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "z-image-pro",
    "prompt": "A close photograph of a lighthouse keeper on a spiral stair at dawn, cold window light, shallow depth of field",
    "width": 1536,
    "height": 1024
  }'

Parameter validation failed

Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.

Authentication or balance issue

401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.

Content or material rejected

A provider may reject unsupported or invalid inputs. Check the task error and media requirements before retrying. Failed tasks are refunded.

Task failed or timed out

A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.

Frequently asked questions

Common questions about this model.

Z-Image Pro is the unfiltered text-to-image channel of the Z-Image family on reAPI. Send a prompt, width, height, an optional seed and an optional prompt-rewrite flag; get one image back at a flat rate. The model id is z-image-pro on /api/v1/images/generations.