MiniMax H3 HighSpeed API reference
768p video with sound from text, images or references
Call MiniMax H3 HighSpeed from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in USD, and a request you can paste into a terminal.
At a glance
- Made by
- MiniMax
- Output
- Video
- From
- $0.06 USD per second of output
- Typical time
- about 37 s
Prices are in USD, charged to your separate API wallet. A task reserves the maximum possible charge when accepted and settles actual usage on completion; any remainder is released. Failed tasks are not charged. Call POST /api/v1/jobs/quote for an exact quote before running.
Create Video
minimax/h3-highspeed/text-to-video
Price
| Option | USD |
|---|---|
Default | $0.06 per second of output |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
promptRequired | string | — | up to 7,000 characters | Describe the scene, the people, the action, the camera and the sound. Put spoken lines in double quotes. |
aspect_ratioOptional | string | 16:9 | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 | Output aspect ratio. |
resolutionOptional | string | 768p | 768p | Output resolution. This model renders 768p only. |
duration_secondsOptional | integer | 5 | 4 to 15 | Output length in whole seconds, from 4 to 15. Billed per second. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask?wait=60" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "minimax/h3-highspeed/text-to-video",
"input": {
"prompt": "A paper boat drifts down a rain-soaked street at dusk, neon signs reflecting in the water, slow tracking shot at ground level",
"duration_seconds": 5,
"resolution": "768p"
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"Image to Video
minimax/h3-highspeed/image-to-video
Price
| Option | USD |
|---|---|
Default | $0.06 per second of output |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
promptRequired | string | — | up to 7,000 characters | Describe what happens after the opening frame: the action, spoken lines in double quotes, the camera and the sound. |
image_urlRequired | string (uri) | — | — | Opening frame. The clip starts from this image and keeps its shape. 256 to 5,760 pixels per side, width-to-height ratio 0.4 to 2.5. |
last_image_urlOptional | string (uri) | — | — | Optional closing frame. The clip ends on this image. |
resolutionOptional | string | 768p | 768p | Output resolution. This model renders 768p only. |
duration_secondsOptional | integer | 5 | 4 to 15 | Output length in whole seconds, from 4 to 15. Billed per second. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
The example uses PopNow sample files in image_url. Replace them with your own public HTTPS links, uploads or saved assets.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "minimax/h3-highspeed/image-to-video",
"input": {
"prompt": "He lands softly on the rooftop, laughs and turns toward the camera while the balloons sway in the evening breeze; slow push-in",
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
"duration_seconds": 5,
"resolution": "768p"
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"Reference to Video
minimax/h3-highspeed/reference-to-video
Price
| Option | USD |
|---|---|
Default | $0.06 per second of output |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
promptRequired | string | — | up to 7,000 characters | Describe the scene and refer to each reference by type and position: "the woman from Image 1", "the motion of Video 1", "the voice of Audio 1". |
reference_image_urlsOptional | array<string (uri)> | — | up to 9 items | Up to nine reference images: people, outfits, products or places, in the order your prompt refers to them. The first five are included; each image after the fifth adds a small charge. |
reference_video_urlsOptional | array<string (uri)> | — | up to 3 items | Up to three reference videos, 2 to 15 seconds each and 15 seconds in total, for a motion or a scene to follow. Their seconds are billed like output seconds. |
reference_audio_urlsOptional | array<string (uri)> | — | up to 3 items | Up to three WAV or MP3 clips for a voice or a sound, 2 to 15 seconds each and 15 seconds in total. Send at least one image or video with them. Free. |
aspect_ratioOptional | string | 16:9 | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 | Output aspect ratio. |
resolutionOptional | string | 768p | 768p | Output resolution. This model renders 768p only. |
duration_secondsOptional | integer | 5 | 4 to 15 | Output length in whole seconds, from 4 to 15. Billed per second. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
The example uses PopNow sample files in reference_image_urls. Replace them with your own public HTTPS links, uploads or saved assets.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "minimax/h3-highspeed/reference-to-video",
"input": {
"prompt": "The man from the reference image jogs across a sunlit rooftop at golden hour and smiles at the camera; smooth tracking shot",
"reference_image_urls": [
"https://media.popnow.ai/influencer/examples/ava.webp"
],
"duration_seconds": 5,
"resolution": "768p"
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"