Varosity

Grok Imagine Video API

xAI's Grok Imagine — the cheapest frontier video model with native synchronized audio ($0.05/s at 480p, $0.07/s at 720p, sound included). Flexible 1–15s clips, text-to-video and image-to-video.

$0.074/s on Varosity credits ($0.070/s with your own key). Clips up to 15s with native audio.

Try Grok Imagine Video Get an API key

no fal account needed · no subscription · failed renders never billed

Best for

  • cheapest frontier video with native audio
  • synchronized sound + dialogue
  • flexible 1–15s duration
  • fast renders

Call it from your code

One Varosity key works for every model. Video renders are async — the response has a jobId; poll GET /api/v1/jobs/{jobId} until status is "succeeded", then read outputUrl.

curl -X POST https://varosity.ai/api/v1/video/generate \
  -H "Authorization: Bearer $VAROSITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "cinematic aerial of a coastal road at golden hour, slow push-in",
    "modelId": "grok-imagine-video",
    "aspectRatio": "16:9",
    "durationSec": 5
  }'

Or ask your agent

Connect Claude, Cursor, or any MCP client to https://varosity.ai/api/mcp with your key, then say:

"Use Varosity with grok-imagine-video to make a 5-second clip of …"
Agent setup guide

Alternatives to Grok Imagine Video