MiniMax H3 4K API

Pricing

Default example: 5-second video at 4K costs 44 credits, or $0.35 at the shared USD reference.

Accepted inputs

Kind

video

Durations

4–15 seconds

Resolutions

4K

Aspect ratios

16:9, 9:16, 1:1, 4:3, 3:4, 21:9

Reference inputs

Images: 9. Videos: 3 (up to 15s and 62914560 bytes). Audio: 3 (up to 52428800 bytes); needs an image or video.

Defaults

5s · 4K · 16:9

Sample request

The request uses the current default settings for this model and the public GenerateMediaRequest schema.

curl -X POST "https://reviral.ai/api/v1/generate-media" \
  -H "Authorization: Bearer $REVIRAL_API_KEY" \
  -H "Idempotency-Key: first-generation" \
  -H "Content-Type: application/json" \
  --data '{"model":"minimax-h3-4k","prompt":"A slow camera move across a quiet lake at sunrise","durationSec":5,"resolution":"4K","aspectRatio":"16:9","maxCredits":44}'

Response and output

{
  "data": {
    "jobId": "550e8400-e29b-41d4-a716-446655440000",
    "kind": "video",
    "model": "minimax-h3-4k",
    "creditsCharged": 44,
    "status": "queued",
    "statusUrl": "/api/v1/jobs/550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "data": {
    "jobId": "550e8400-e29b-41d4-a716-446655440000",
    "kind": "video",
    "model": "minimax-h3-4k",
    "creditsCharged": 44,
    "status": "ready",
    "statusUrl": "/api/v1/jobs/550e8400-e29b-41d4-a716-446655440000",
    "outputUrl": "https://reviral.ai/signed-output",
    "durationSec": 5
  }
}

Error cases

• 404 model_not_available: the ID is no longer in the live catalog.
• 409 price_changed: the current cost differs from maxCredits.
• 422 validation_error: duration, resolution, aspect ratio, size, or count is not accepted.
• 429 rate_limit_exceeded: wait for Retry-After before retrying.

Frequently asked questions

How much does the MiniMax H3 4K API cost?

The default 5-second video at 4K costs 44 credits, about $0.35 at the shared USD reference. Read the live models endpoint before submitting.

Which inputs does MiniMax H3 4K accept?

It accepts the listed generation settings plus up to 9 image, 3 video, and 3 audio references. Zero means that reference kind is unavailable.

How do I retrieve MiniMax H3 4K output?

Poll the returned status URL until the job is ready, then download the signed output URL or URLs before they expire.