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Video generation playground

MiniMax H3 API

MiniMax's H3 successor to Hailuo — 4-15s at up to 2K, with a last-frame option.

MiniMax H3 is a video generation model from MiniMax, available on OttoPort's OpenAI-compatible API as the model ID minimax-h3 at $0.163 / second as of 2026-10-14.

Provider

MiniMax

Price

$0.163 / second

Model ID

minimax-h3

Type

video generation model

Creative conceptsCampaign assetsDeveloper workflows

Create with MiniMax H3

video
ExampleSelect to edit
Duration

Your result appears here

Start with the example prompt or make it your own. Your OttoPort account is used securely for generation.

Pricing

MiniMax H3 API pricing

What OttoPort bills for MiniMax H3, and what that works out to per unit. Rates are read from the same catalog the gateway meters against, and were current on 2026-10-14.

Per second$0.163
5-second clip$0.815
8-second clip$1.30
Seconds per $1061of generated video

No subscription and no minimum — OttoPort bills prepaid credits against usage. See the full rate card.

Quickstart

Call MiniMax H3 in three lines

Send "model": "minimax-h3" to POST https://ottoport.ai/api/v1/videos/generations with an OttoPort key. No MiniMax account, no waitlist, no separate SDK.

curl https://ottoport.ai/api/v1/videos/generations \
  -H "Authorization: Bearer $OTTOPORT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "minimax-h3",
    "prompt": "cinematic product reveal, slow dolly, black background",
    "duration": 5,
    "aspect_ratio": "16:9"
  }'

Before you start

  1. 1. Create a key at /api-keys.
  2. 2. Top up credits — the smallest pack is $25.
  3. 3. Paste the request. It returns a job ID; poll it or pass a webhook_url.

Full reference at /docs, or drive it from an agent with the MCP server and CLI.

Reference

Request parameters

The body POST https://ottoport.ai/api/v1/videos/generations accepts for MiniMax H3.

FieldTypeRequiredNotes
modelstringYesAlways minimax-h3 for MiniMax H3.
promptstringYesSubject, action, and camera movement.
durationintegerNoSeconds of output. This is the billed unit.
resolutionstringNoOne of: 480p, 720p, 2k. Tiers above this model's base rate bill at a multiplier.
aspect_ratiostringNoe.g. 16:9 or 9:16.
image_urlstringNoThe first frame, for image-to-video.
last_frame_urlstringNoThe closing frame. With image_url, this is first-and-last-frame generation.
reference_image_urlsarrayNoSubjects the shot carries through — a character, a product — on models that accept references. Up to 9.
reference_video_urlsarrayNoReference videos — motion, a performance, a scene — the shot draws on. Billed per second of reference video on models whose upstream charges for it. Up to 3, 15s in all.
reference_audio_urlsarrayNoReference audio — a voice, a beat — beside reference images or videos. Not billed. Up to 3, 15s in all.
webhook_urlstringNoCalled when the job settles, so you need not poll.
webhook_secretstringNoSigns the webhook so you can verify it came from OttoPort.
Comparison

MiniMax H3 direct vs through OttoPort

MiniMax H3 is the same model either way — what changes is how many accounts, keys, and integrations you carry to reach it.

MiniMax directVia OttoPort
Accounts and keysA MiniMax account, plus one more for every other model you addOne OttoPort account and one key for the whole catalog
Request shapeMiniMax's own SDK and response formatOpenAI-compatible — point baseURL at OttoPort and change the model string
Switching modelsA new integration per providerReplace minimax-h3 with any other model ID in the catalog
BillingA separate invoice and contract per providerPrepaid credits, no subscription, one usage ledger
Provider outagesYour call failsConfigured backup routes are tried in order on provider failure
01

Describe the subject and action.

02

Add a camera movement.

03

Specify your output format.

FAQ

MiniMax H3 API questions

Cost, keys, and model IDs for MiniMax H3 on OttoPort.

How much does the MiniMax H3 API cost?

On OttoPort, MiniMax H3 costs $0.163 / second as of 2026-10-14. For scale, 5-second clip: $0.815. Billing is prepaid usage with no subscription and no minimum, and the current rate is always published at ottoport.ai/pricing.

How do I get a MiniMax H3 API key?

You do not need a MiniMax key. Create an OttoPort account, generate a key at ottoport.ai/api-keys, and send it as "Authorization: Bearer <key>" to POST https://ottoport.ai/api/v1/videos/generations with "model": "minimax-h3". The same key reaches every other model in the catalog.

What is the model ID for MiniMax H3?

The OttoPort model ID for MiniMax H3 is minimax-h3. Pass it as the model field on POST https://ottoport.ai/api/v1/videos/generations, or list it programmatically from GET https://ottoport.ai/api/v1/models.

Is MiniMax H3 generation synchronous?

No. POST https://ottoport.ai/api/v1/videos/generations returns a job ID immediately. Poll GET https://ottoport.ai/api/v1/videos/generations/{id} for status, or pass webhook_url and webhook_secret and OttoPort will call you when the job settles. You are billed per second of output, so a failed job costs nothing.

Do I need a MiniMax account to use MiniMax H3?

No. OttoPort connects to MiniMax on your behalf, so one OttoPort account covers MiniMax H3 and every other model in the catalog — no per-provider contracts, keys, or invoices.

Alternatives

Other video generation models on the same API

Same endpoint, same key — swapping model is a one-string change from minimax-h3.

Browse the full catalog — every model with its provider and per-unit price.