Pixverse Pixverse V4.5 T2V Fast

Pixverse Pixverse V4.5 T2V Fast

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Pixverse v4.5 Fast turns text prompts into high-quality videos with multiple resolutions, aspect ratios, and motion modes. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

PixVerse V4.5 Text-to-Video Fast is a versatile text-to-video generation model optimized for speed. Generate high-quality videos from text descriptions with multiple resolution options — from quick 360p previews to crisp 720p HD output.


Why It Stands Out

  • Fast processing: Optimized for quick video generation.
  • Multiple resolutions: Choose from 360p, 540p, or 720p based on your needs.
  • Prompt Enhancer: Built-in AI-powered prompt optimization for better results.
  • Flexible aspect ratios: Support for various aspect ratio presets.
  • Negative prompt support: Exclude unwanted elements for cleaner outputs.
  • Reproducibility: Use the seed parameter to recreate exact results.

Parameters

ParameterRequiredDescription
promptYesText description of the video you want to generate.
aspect_ratioYesOutput aspect ratio: 16:9, 9:16, 1:1, etc.
resolutionYesOutput resolution: 360p, 540p, 720p.
durationNoVideo length: 5 seconds (default: 5).
negative_promptNoElements to avoid in the output.
seedNoSet for reproducibility; leave empty for random.

Supported Resolutions

ResolutionBest For
360pQuick previews, drafts, low-bandwidth use
540pSocial media, balanced quality and speed
720pHD output, final delivery, professional use

How to Use

  1. Write a prompt describing the scene, action, and style you want. Use the Prompt Enhancer for AI-assisted optimization.
  2. Select aspect ratio — choose the format that fits your platform.
  3. Select resolution — choose 360p for drafts, 720p for final output.
  4. Set duration — 5 seconds.
  5. Add a negative prompt (optional) — specify elements to exclude.
  6. Click Run and wait for your video to generate.
  7. Preview and download the result.

Best Use Cases

  • Social Media Content — Create platform-optimized videos for TikTok, Reels, and Shorts.
  • Rapid Prototyping — Use 360p for quick concept testing.
  • Marketing & Advertising — Produce promotional videos and ad creatives.
  • Action & Sports — Generate dynamic slow-motion and action sequences.
  • Creative Projects — Bring imaginative concepts to life.

Pricing

Resolution5 seconds
360p$0.50
540p$0.50
720p$0.70

Pro Tips for Best Quality

  • Be detailed in your prompt — describe subject, action, environment, lighting, and style.
  • Use 360p or 540p for quick iterations, then generate final version at 720p.
  • Include motion keywords like “slow motion,” “dynamic,” or “cinematic.”
  • Use negative prompts to reduce artifacts like blur or distortion.
  • Match aspect ratio to your target platform before generating.

Notes

  • Processing time is optimized for speed — expect quick turnaround.
  • Please ensure your prompts comply with content guidelines.

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",
  "aspect_ratio": "16:9",
  "resolution": "540p",
  "duration": 5
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/pixverse/pixverse-v4.5-t2v-fast" \
  -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

ParameterTypeRequiredDefaultRangeDescription
promptstringYes-The positive prompt for the generation.
aspect_ratiostringYes16:916:9, 4:3, 1:1, 3:4, 9:16The aspect ratio of the generated media.
resolutionstringYes540p360p, 540p, 720pVideo quality (360p/540p/720p/1080p).
durationintegerNo55Video duration in seconds.
negative_promptstringNo-The negative prompt for the generation.
seedintegerNo--The random seed to use for the generation.

Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
data.idstringUnique identifier for the prediction, Task Id
data.modelstringModel ID used for the prediction
data.outputsarrayOutput values, usually URL strings; some models return text strings or structured result objects (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
data.statusstringStatus of the task: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds

Result Request Parameters

ParameterTypeRequiredDefaultDescription
idstringYes-Task ID

Result Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
dataobjectThe prediction data object containing all details
data.idstringUnique identifier for the prediction
data.modelstringModel ID used for the prediction
data.outputsarray<string | object>Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model.
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to poll for the prediction result
data.statusstringStatus: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds
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