Runwayml Upscale V1 API Documentation

Runwayml Upscale V1 API Documentation

Playground

RunwayML Upscale V1 upscales videos to 4K via simple file upload, billed at $0.11 per 5 seconds for fast, high-quality upscaling. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Enhance your video resolution with Runway’s AI-powered upscaling technology. Simply upload a video and get back a higher-resolution version with improved clarity, sharper details, and cleaner edges — no complex settings required.

Why It Looks Great

• AI-enhanced detail: Reconstructs fine textures, edges, and details that traditional upscaling cannot recover.
• Temporal consistency: Maintains stable quality across frames, minimizing flickering and artifacts.
• Motion preservation: Keeps fast action and camera movements smooth without introducing blur.
• Artifact reduction: Cleans up compression noise and blocky artifacts from lower-quality sources.
• One-click simplicity: No parameters to tune — just upload and upscale.

Parameters

How to Use

1. Upload your video — drag and drop or paste a public URL.
2. Run — click the button to start processing.
3. Download — preview and save your upscaled video.

Pricing

> Billing duration: Input media duration is rounded up to whole seconds. The minimum billed duration is 3 seconds; shorter inputs are billed as 3 seconds. Existing per-5-second rate tables remain unchanged.

$0.11 per 5 seconds, prorated at $0.022 per second, with a 3-second minimum and 600-second maximum.

Best Use Cases

• Content Restoration — Upscale old or low-resolution footage for modern displays.
• Social Media — Enhance video quality before posting to platforms that compress uploads.
• Video Production — Improve B-roll or archival footage for professional projects.
• Streaming & Broadcast — Prepare lower-resolution content for HD or 4K delivery.
• Personal Archives — Revive old home videos and memories with improved clarity.

Pro Tips for Best Results

• Upload the highest-quality source available — avoid heavily compressed inputs when possible.
• Keep the original frame rate; avoid re-encoding before upload.
• For videos longer than 10 minutes, split into segments and process separately.
• Works best on content with clear subjects; extremely noisy or blurry sources may have limited improvement.

Notes

• If using a URL, ensure it is publicly accessible. A preview thumbnail in the interface confirms successful loading.
• Processing time varies based on video length and current queue load.
• For longer videos exceeding the 10-minute limit, split into multiple segments, process each, then merge afterward.

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'
{
  "video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4"
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/runwayml/upscale-v1" \
  -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