Create Video
Image to Video
Reference to VideoAbout MiniMax H3 X
MiniMax H3 X creates 2–15-second videos with sound from text, an opening image or reference material. Choose 480p, 720p or 1080p, with 720p as the default. Image-to-video also accepts an optional closing frame.
Call it with the model name minimax/h3-x/image-to-video on POST /jobs/createTask, from $0.11.
Introduction
MiniMax H3 X Image to video animates one opening frame into a 2 to 15 second clip, with an optional closing frame.
Choose a mode by starting material
| What you have | Mode |
|---|---|
| only an idea | MiniMax H3 X Text to video |
| a frame to animate, with an optional closing frame | MiniMax H3 X Image to video |
| people, outfits, places, motion clips or voices | MiniMax H3 X Reference to video |
Key features
Your frame carries through
The people, wardrobe and light of the opening frame stay in the clip.
Opening and closing frames
Add last_image_url to fix where the clip ends.
Sound and spoken lines
A line in double quotes was spoken word for word in our checks.
Request parameters
| Parameter | Required | Description |
|---|---|---|
duration_seconds | No | Length of the generated clip. ≥ 2 · ≤ 15 · Default: 5 |
enable_prompt_expansion | No | Lets the model add detail to a short prompt. Default: false |
image_url | Yes | The picture to start from. |
last_image_url | No | Reference image to guide the final frame. |
prompt | Yes | Describe what you want to make. |
resolution | No | Choose an available output size. 480p · 720p · 1080p · Default: 720p |
Pricing
Prices are in USD. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.
| Option | USD per second |
|---|---|
| resolution 480p | $0.022 |
| resolution 720p | $0.032 |
| resolution 1080p | $0.045 |
Send the same request body to POST /jobs/quote to see the estimated and maximum USD charge before running. A quote does not run the task or charge your balance.
Use cases
Speaking shots
A character turns to camera and says a line.
Styled stills in motion
Add a turn, a walk or a camera move to a photo.
Prompt guide & pro tips
Describe what happens next
Write the movement, the camera and the sound, not what the frame already shows.
Quote the dialogue
Put spoken lines in double quotes.
One beat for two people
A two-person clip stays steadier with one slow action.
Keep prompt expansion off
It made no visible difference in our tests, so keep it off for literal direction.
API quick start
Call the MiniMax H3 X API in three steps
- Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow-. API calls use your separate USD balance.
- Send the request. POST /jobs/createTask with model minimax/h3-x/image-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
- Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.
# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
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: $IDEMPOTENCY_KEY" \
-d '{
"model": "minimax/h3-x/image-to-video",
"input": {
"prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
"resolution": "720p",
"duration_seconds": 5
}
}'
# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
-H "Authorization: Bearer $POPNOW_API_KEY"Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.
MiniMax H3 X API questions
How much does the MiniMax H3 X API cost?
MiniMax H3 X starts at $0.11 for a 5-second clip with Image to Video, its cheapest task. Prices by option: 480p $0.022 per second, 720p $0.032 per second, 1080p $0.045 per second. The API uses a separate USD balance. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.
What are the limits of the MiniMax H3 X · Image to Video API?
Clip length: 2–15 s; Resolutions: 480p · 720p · 1080p; Prompt length (characters): 7,000. Requests outside these limits are rejected before anything is charged.