Anima Turbo API

Introduction

Anima is a 2-billion-parameter model from CircleStone Labs trained on several million anime images plus about 800,000 other artworks; Turbo is its distilled build, made for 8 to 12 sampling steps. Prompt it with Danbooru-style tags, plain sentences or both, pick any of fifteen aspect ratios and choose between two resolution tiers.

Choose a mode by starting material

Key features

Seconds per image

Across 60 test runs covering every aspect ratio on both tiers, the model took between 2 and 16 seconds per image and usually less than 10. That is fast enough to tune a prompt one tag at a time.

Tags, sentences or both

The model learned from Danbooru-style tags and from natural-language captions, so both work and they can be mixed freely. Tags are precise about characters, outfits and poses; sentences are better at describing a scene.

Fifteen shapes, two sizes

Every ratio from 3:1 to 1:3 is available on both tiers. The 1k tier gives about one megapixel, for example 1024 x 1024 or 1360 x 768; the 1.5k tier gives about 2.4 megapixels, for example 1536 x 1536 or 2048 x 1152, generated natively rather than upscaled.

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 2 credits per image ($0.02).

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

Use cases

Scenery and backdrops

With "scenery, no humans" the model paints the skies, streets and interiors anime is known for. The wide ratios suit banners, video backdrops and visual-novel scenes.

Prompt guide & pro tips

Follow the tag order

Quality and rating tags first, then the head count ("1girl", "1boy", "no humans"), then character, series and artist, then everything else. Use lowercase and spaces, not underscores. Within a group the order does not matter.

Use the rating tags

The model knows a small set of rating tags. Because there is no negative prompt, this tag is the main way to set the tone.

Prefix artists with @

To lean on an artist's style, write the name with "@" in front. Without the prefix the effect is very weak.

Give sentences room

When writing natural language, use at least two sentences and describe appearance, clothing, place and light. Very short prompts leave too much to chance.

Change the seed if a signature appears

Now and then the model draws a signature-like scribble in a corner. Rerun with another seed rather than rewriting the prompt.

API quick start

Call the Anima Turbo 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 circlestone-labs/anima-turbo/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": "circlestone-labs/anima-turbo/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
    "aspect_ratio": "1:1",
    "resolution": "1k"
  }
}'

# 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.

Anima Turbo API questions

All Anima models

Anima Turbo LoRA adds up to three of your own style or character LoRAs on the same model.

• Anima Turbo APIAnime art in seconds, or turn a photo into animeFrom 2 credits per image
• Anima Turbo LoRA APIAnime art with your own style or character LoRAsFrom 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 Anima Turbo

Try it

Anima Turbo AI Image Generator onlineCreate images with Anima Turbo in PopNow

Docs

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