Google Veo3 Fast API Documentation

Google Veo3 Fast API Documentation

Playground

Google Veo 3 Fast creates text-to-video with synchronized audio, delivering faster, more cost-effective results than standard Veo 3; commercial use allowed and pricing starts at $0.25/second. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Veo 3 Fast is a high-speed, cost-efficient version of Google’s Veo 3 model, built for creators who need cinematic results with synchronized audio in record time. It produces realistic 8-second clips featuring dialogue, sound effects, and background music—all natively generated.

Why it looks great

• Lightning-Fast Generation ⚡ Produces 8-second cinematic videos up to 30% faster than standard Veo 3.

• Budget-Friendly Efficiency 💰 Up to 80% cost savings, allowing 5× more videos per budget unit.

• Cinematic Realism 🎬 Generates coherent motion, expressive characters, and balanced lighting for film-like quality.

• Native Audio Sync 🔊 Automatically includes ambient sounds, speech, and music perfectly matched to on-screen action.

• Character & Camera Consistency 🎥 Supports reference-based continuity and stable camera direction for precise visual storytelling.

Limits and Performance

• Max duration per job: 8 seconds
• Typical generation speed: ~30 seconds per video
• Resolution: up to 1080p
• Audio: synchronized voice, SFX, ambience, and background score
• Size: 16:9 or 9:16

Pricing

Pricing is $0.10 per second without audio or $0.15 per second with audio, for both 720p and 1080p.

Billing Rules

• Supported durations are 4, 6, and 8 seconds.
• Total price is the requested duration multiplied by the applicable per-second rate.
• 720p and 1080p have the same price.
• generate_audio selects the audio pricing tier.
• prompt, aspect_ratio, negative_prompt, and seed do not add separate charges.

How to Use

1. Write a text prompt describing your scene, characters, or story.
2. Choose duration (up to 8 seconds).
3. Run generation and preview your result.
4. Download the MP4 file with synchronized audio.

Pro Tips for Best Results

• Keep prompts concise but cinematic: specify lighting, motion, and emotion.
• Use reference images for consistent characters across clips.
• Combine camera directions (“slow zoom-in,” “tracking shot,” etc.) for dynamic composition.
• Avoid overly complex multi-scene prompts—stick to one action or setting per clip.
• If dialogue is critical, use quotation marks in the prompt for clearer speech output.

Notes

• Actual generation time may vary depending on queue and resolution.
• Currently optimized for short-form content such as trailers, vlogs, and viral videos.

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",
  "duration": 8,
  "resolution": "720p",
  "generate_audio": true
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/google/veo3-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 "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"

# 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|deleted) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    *) sleep 2 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters