MiniMax H3
Officialminimax/minimax-h3
MiniMax H3 — MiniMax's new open multimodal video model: 4–15 sec, 768P or 2K, text-to-video, first/last frame and reference images.
- Input modalities
- text · image
- Output modalities
- video
- Capabilities
- Video · Text To Video · Image To Video · Reference Image · First Last Frame
- Upstream release
- 2026-07-31
- RouteMux name
- minimax/minimax-h3
- Official ID
- MiniMax-H3
Try MiniMax H3 here
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What is MiniMax H3
MiniMax H3 is MiniMax's next-generation open, general-purpose multimodal video model, released on July 31, 2026. It reads a text prompt together with images and turns them into a video clip.
Three ways to start: from a prompt alone (text-to-video), from a first frame or a first and last frame (image-to-video), or from up to five reference images that set the character, style or scene. Frame images and reference images cannot be mixed in one request. Duration is any whole number of seconds from 4 to 15, output is 768P or 2K, and the aspect ratio can be 16:9, 9:16, 1:1, 4:3, 3:4 or 21:9; with an input image it follows the image by default.
Pricing is per output second, with one rate for 768P and another for 2K, so a 10-second clip costs ten times the per-second rate. It uses the OpenAI Sora protocol and is asynchronous: the request returns a job, and you poll it for the finished video.
MiniMax H3 API pricing
Limited time20% extra Credits on your first top-up — up to 200 bonus Credits
Applies to your first top-up within 72 hours of signing up. Minimum $20, once per account.
Key capabilities
4–15 seconds
Any whole-second length, not fixed presets.
768P or 2K
Two output resolutions, each with its own per-second rate.
Frames or references
First frame, first + last frame, or up to 5 reference images.
Asynchronous
Returns a job; poll it to get the video.
Interface and protocols
Use any of these IDs to call this model via the API.
minimax/minimax-h3MiniMax-H3Replace the ROUTEMUX_KEY placeholder with your API key. Create one →
curl https://api.routemux.com/v1/videos \
-H "Authorization: Bearer <ROUTEMUX_KEY>" \
-H "Content-Type: application/json" \
-d '{
"model": "minimax/minimax-h3",
"prompt": "A quiet product shot of a glass observatory at dusk",
"seconds": 5,
"size": "1280x720"
}'Performance (last 30 days)
MiniMax H3 FAQ
›What is MiniMax H3?
MiniMax H3 — MiniMax's new open multimodal video model: 4–15 sec, 768P or 2K, text-to-video, first/last frame and reference images.
›How much does the MiniMax H3 API cost?
Through RouteMux, MiniMax H3 is priced at $0.08, below the official list price.
›How do I call MiniMax H3 via API?
MiniMax H3 is OpenAI-compatible: point your base URL at RouteMux and set the model field to minimax/minimax-h3 — no code changes needed.
›Which input and output modalities does MiniMax H3 support?
MiniMax H3 accepts text, image as input and produces video as output.
›When was MiniMax H3 released?
MiniMax H3 was released on July 31, 2026.
›How do I set resolution, length and aspect ratio?
POST /v1/videos with size "768P" or "2K", seconds 4–15 and an optional ratio such as "9:16". A width×height size like "720x1280" also sets the ratio (and means 768P). Leaving them out gives 768P, 5 seconds and 16:9.
›Can I use reference videos or audio?
Not through RouteMux yet. Text, first/last frame images and up to 5 reference images are supported.
Sources
Reviewed by Jerry Fan on 2026-10-04