Chroma

Chroma

Playground

Chroma enables fully uncensored image generation for creative expression and artistic freedom. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Chroma is a fully uncensored image generation versatile image generator for portraits, products, and scene renders. It’s tuned for crisp detail, pleasing color separation, and stable composition—great for ads, thumbnails, story art, and concept frames.

Highlights

• Clean, high-contrast renders with natural lighting and color harmony
• Strong prompt adherence for people, props, and environments
• Wide canvas support via freeform width/height (post-crop friendly)
• Fast, predictable outputs for batch or single-shot creation

Inputs & Parameters

• prompt (required): Describe subject, style, lighting, camera, and mood.
• size: Set width and height freely (e.g., 1024x1322), up to 1536×1536.
• seed:
• -1 = random seed (varied results)
• Any non-negative integer = reproducible output
• output_format: jpeg, png, or webp.

How to Use

1. Write a tight prompt with subject + style + lighting + composition. Example: “A character-driven portrait of a middle-aged craftsman in a rustic workshop, shallow depth of field, golden hour rim light, 50mm photo, editorial realism.”
2. Choose canvas width/height for your target platform.
3. (Optional) Set a seed for repeatability.
4. Pick output_format and Run. Iterate by tweaking prompt or seed.

Prompting Tips

• Structure: [subject] + [context] + [style] + [lighting] + [camera] + [mood].
• For portraits, add: “soft key light, catchlights, subtle skin texture, shallow DOF.”
• For products, add: “studio sweep background, three-point lighting, reflective control.”
• Keep negatives concise (e.g., “blurry, extra fingers, watermark, text”).
• Lock a seed once you like the look; only change details you intend to vary.

Output Guidance

• Prefer power-of-two-ish sides (1024, 1280, 1536) for speed/quality balance.
• Use png for transparency or sharp graphics; jpeg/webp for compact files.
• Upscale later if you need 2K/4K (try Ultimate Image Upscaler).

Pricing

• $0.015 per image

Notes

• Commercial use is allowed per WaveSpeedAI terms.
• Some prompts may be adjusted for safety/quality. If output diverges, simplify wording and iterate with seeds.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "prompt": "A cinematic ocean wave at sunrise, highly detailed",
  "size": "1024*1024",
  "seed": -1,
  "output_format": "jpeg"
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/chroma" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "${TASK}" | jq -r '.urls.get // empty')
if [ -z "${RESULT_URL}" ]; then RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"; fi

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}")
  RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "${STATUS}" >&2; exit 1 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters