Google Gemini Omni 1.2 Flash Text To Video API Documentation

Google Gemini Omni 1.2 Flash Text To Video API Documentation

Playground

Gemini Omni 1.2 Flash Text-to-Video creates short AI videos with synchronized audio from text prompts, supporting resolutions from 360P to 4K for social content, creative storytelling, marketing videos, and production workflows. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Gemini Omni 1.2 Flash Text-to-Video turns text prompts into videos with synchronized audio. It supports fast 360p drafts for prompt exploration, standard 720p generation, and higher-resolution 1080p or 4k output for delivery-ready results.

Why Choose This?

• Text-to-video generation
  Generate videos directly from natural-language prompts.

• Synchronized audio
  Create motion and matching audio together from one prompt.

• Fast draft workflow
  Use 360p to test scene ideas, camera movement, timing, and prompt variations quickly.

• Flexible resolution options
  Choose 360p, 720p, 1080p, or 4k depending on speed, cost, and output quality needs.

• Landscape and vertical formats
  Use 16:9 for widescreen video or 9:16 for vertical content.

• Directable creative control
  Describe framing, camera movement, scene progression, dialogue, music, ambience, and visual style in the prompt.

Parameters

How to Use

1. Write your prompt — Describe the subject, action, scene, camera movement, visual style, and audio direction.
2. Choose aspect ratio — Use 16:9 for landscape video or 9:16 for vertical content.
3. Select resolution — Use 360p for drafts, 720p for standard generation, or 1080p / 4k for higher-quality output.
4. Set duration — Choose a duration from 3 to 15 seconds.
5. Submit — Generate the final video with synchronized audio.

Pricing

Pricing is based on generated video duration and selected resolution.

Example Costs

Best Use Cases

• Prompt exploration — Use 360p to test creative direction before generating higher-resolution versions.
• Cinematic short clips — Create short scenes with motion, camera direction, and synchronized sound.
• Social media videos — Generate vertical or landscape videos for posts, ads, shorts, and reels.
• Marketing concepts — Produce campaign clips, product scenes, and promotional video ideas.
• Storyboarding and previsualization — Turn scene descriptions into audiovisual previews.
• High-resolution delivery — Use 1080p or 4k when final output quality matters.

Pro Tips

• Start with 360p for fast prompt testing, then move to 1080p or 4k for final output.
• Include subject, action, camera movement, lighting, mood, and audio cues in the prompt.
• Use 9:16 for mobile-first video and 16:9 for widescreen content.
• Keep the scene focused when generating short clips.
• Mention dialogue, music, ambience, or sound effects directly when audio direction matters.
• Use shorter durations for quick iteration and longer durations when the scene needs more time to develop.

Related Models

• Gemini Omni 1.2 Flash Text-to-Video — Generate videos directly from text prompts with synchronized audio.
• Gemini Omni 1.2 Flash Image-to-Video — Animate a reference image into a video.
• Gemini Omni 1.2 Flash Reference-to-Video — Generate videos using reference media for stronger guidance.
• Gemini Omni 1.2 Flash Video Edit — Edit an existing video with prompt instructions.

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": "720p",
  "duration": 8
}
JSON
)

# 1. Submit the prediction once. Never retry this request automatically:
# a retry after an unclear failure can create a second, billed task.
CHECK='The task may already exist. Check History or the predictions list before submitting again.'
if ! SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  --connect-timeout 10 --max-time 60 \
  -X POST "https://api.wavespeed.ai/api/v3/google/gemini-omni-1.2-flash/text-to-video" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}"); then
  printf 'Submit failed. %s\n' "${CHECK}" >&2
  exit 1
fi

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 "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id. %s\n' "${CHECK}" >&2
  exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"

# 2. Poll until the prediction reaches a final status.
BODY_FILE=$(mktemp)
trap 'rm -f "${BODY_FILE}"' EXIT
while true; do
  # Transient errors (429, 5xx) are retried, honoring Retry-After.
  HTTP_CODE=$(curl --silent --show-error --fail-with-body \
    --connect-timeout 10 --max-time 60 --retry 5 --retry-delay 2 \
    --output "${BODY_FILE}" --write-out '%{http_code}' \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}" || true)
  case "${HTTP_CODE}" in
    2??) ;;
    000|429|5??)  # dropped connection or temporary error: keep polling
      printf 'Task %s: HTTP %s, polling again in 10s\n' "${PREDICTION_ID}" "${HTTP_CODE}" >&2
      sleep 10; continue ;;
    *) printf 'Task %s: HTTP %s\n' "${PREDICTION_ID}" "${HTTP_CODE}" >&2
      cat "${BODY_FILE}" >&2; exit 1 ;;
  esac
  RESULT=$(jq 'if type == "object" and has("data") then .data else . end' "${BODY_FILE}")
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout|deleted)
      printf 'Task %s ended with status %s\n' "${PREDICTION_ID}" "${STATUS}" >&2
      printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    *) sleep 2 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Every model also accepts the global request options enable_sync_mode and enable_base64_output; see their pages for details.

Response Parameters

Result Request Parameters

Result Response Parameters