Krea 2 Medium API

Introduction

Krea 2 Medium is the Krea 2 line's everyday tier: it doesn't reach for Large's finishing-grade material detail and doesn't chase Medium Turbo's speed.

Krea 2 Medium is the volume tier of the Krea 2 line: a single text-to-image endpoint, 5,000-character prompts, five aspect ratios and a choice of PNG or JPEG. Built for the frames you make many of.

Key features

A photographic direction for volume work

Krea 2 Medium is suited to generating multiple candidate frames while a team is still selecting a composition and visual direction. Compare candidates against a single creative brief instead of mixing unrelated ideas in one batch.

Preserve the approved brief for the next stage

Once a direction passes review, keep the wording and the selected frame together. That record is more useful to a finishing workflow than a vague request to recreate the same look later.

Use the model for a new visual, not a source edit

This mode begins with written direction. When an existing image must retain its identity or layout, choose an editing mode instead of asking text-only generation to approximate the source.

Request parameters

Pricing

Prices are in credits, the same credits you use on the website (1 credit = $0.01). The hold is taken when the task is accepted and settled to the actual charge when it finishes; failed tasks are refunded.

Each task is rounded up to whole credits, so one run at the lowest tier costs 5 credits per image ($0.05).

For an exact number before you run, send the same body to POST /jobs/quote.

Use cases

Start from a written brief

Use this endpoint when one brief should produce many candidate frames: 5,000-character prompts, five aspect ratios, and PNG by default so the keepers go straight to retouching. There is no image input, so the whole direction has to be in the words.

Internal preview and pitch drafts

Enough quality to carry a concept in a deck without spending a finishing tier's time on a frame that will be replaced. Move the wording that survives review to Krea 2 Large unchanged.

Editorial and portrait batches

Available-light portraiture, interiors and styling frames produced fifty at a time through a single endpoint. The png default is what makes that practical: the keepers go straight into a retouch instead of through a re-export, and nothing is thrown away by a lossy pass before anyone has chosen.

Social and feed assets

Pick JPEG when frames go straight to a feed and PNG when they will be retouched.

Prompt guide & pro tips

Write the light, not the adjectives

Describe where the light comes from and what it falls on — a bedside lamp, a window at dusk, one bare bulb — and name the lens and the film stock. Precise light does more for this line's photographic look than words such as "stunning" or "hyper-real".

Keep the prompt with the keeper

With no seed, a good frame cannot be regenerated. Save the prompt beside the asset, and when a wording survives review, carry it to Krea 2 Large unchanged for the finishing pass.

Adapt the included example

Start with the published example using aspect_ratio: 3:4, output_format: png. Replace the subject and creative direction while keeping the input contract for this mode intact.

The prompt behind the reference frame for this endpoint — it runs unchanged here, though the image shown was produced on the Turbo tier of the same line as a style reference.

Check the result before iterating

Three fields, no more: prompt, aspect_ratio and output_format. There is no seed, so nothing can be pinned and a frame worth keeping has to be stored with its prompt. This endpoint takes no image input — no image-to-image and no reference images — and exposes no creativity control. For style references use Krea 2 Medium Turbo or Krea 2 Large; for the highest detail ceiling, Krea 2 Large. Medium also has no widescreen or anamorphic ratio.

API quick start

Call the Krea 2 Medium API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
2. Send the request. POST /jobs/createTask with model krea/2-medium/text-to-image and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "krea/2-medium/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
    "aspect_ratio": "1:1",
    "output_format": "png"
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Krea 2 Medium API questions

All Krea models

Krea 2 Medium Turbo is quicker, adds eight shapes and style references. Medium keeps the PNG or JPEG choice.

• Krea 2 Turbo LoRA APIKrea 2 Turbo images and restyles with your own LoRAsFrom 4 credits per image
• Krea 2 Large APIKrea's most detailed tier for cinematic key framesFrom 9 credits per image
• Krea 2 Medium APIEveryday Krea images for steady volume workFrom 5 credits per image
• Krea 2 Medium Turbo APIQuick Krea frames guided by up to ten style referencesFrom 3 credits per image

Other image APIs

• Nano Banana 2.1 APIGoogle's newest Nano Banana, sharp text and 4K outputFrom 8 credits per image
• Nano Banana Pro APIPlans the layout first: dense text, diagrams and 4K editsFrom 17 credits per image
• GPT Image 2.5 Sunburst APIOpenAI's quality-first model, up to 4K with clean textFrom 1 credit per image
• Seedream 5.0 Pro APIHigh-detail images and edits from up to ten referencesFrom 6 credits per image
• FLUX.2 Max APITop-tier FLUX: photoreal light and exact brand colorsFrom 11 credits per image
• Qwen Image 2.1 Pro APIUp to six detailed 2K images from one promptFrom 6 credits per image

More about Krea 2 Medium

Try it

Krea 2 Medium AI Image Generator onlineCreate images with Krea 2 Medium in PopNow

Docs

Krea 2 Medium model ID and input schema in the API docsPopNow API quickstart: your first request in five minutesImage generation guide for the PopNow APIWebhooks: get Krea 2 Medium results without polling