Generate images with the MiniMax H3 Image Highspeed API. 13 aspect ratios, 1K to 4K output and built-in prompt enhancement. Pay per generation. MiniMax H3 Image Highspeed is the fast tier of H3 Image for text-to-image, with 13 aspect ratios and 1K, 2K or 4K output.
MiniMax H3 Image Highspeed is the fast tier of H3 Image for text-to-image, with 13 aspect ratios and 1K, 2K or 4K output.
About this model
MiniMax H3 Image Highspeed is the faster tier of the H3 Image family, built for quick drafts, high-volume jobs and rapid iteration, and it accepts exactly the same parameters as the standard model. The MiniMax H3 Image Highspeed text-to-image API renders at 1K, 2K or 4K (up to 20 megapixels), supports 13 aspect ratios from 1:2 to 2:1 and 9:21 to 21:9, and returns PNG, JPG or WEBP. Edit or combine references with MiniMax H3 Image Highspeed Edit, or compare the standard tier with MiniMax H3 Image.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $0.06/image (1K, 2K), $0.18/image (4K) | Pay-per-generation pricing, no subscription required. |
| Fal.ai | Not available | No dedicated MiniMax H3 Image Highspeed endpoint confirmed at this time. |
| Replicate | Not available | No dedicated MiniMax H3 Image Highspeed endpoint confirmed at this time. |
Pay-per-generation pricing, no subscription required.
No dedicated MiniMax H3 Image Highspeed endpoint confirmed at this time.
No dedicated MiniMax H3 Image Highspeed endpoint confirmed at this time.
** Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | string | Text prompt describing the image to generate | A frosted glass serum bottle on wet travertine stone, soft morning light, editorial product photography |
| Aspect Ratio | Enum (13 options) | Aspect ratio of the output image. | 1:1 |
| Resolution | Enum (3 options) | Output resolution tier: 1K, 2K or 4K. | 1K |
| Output Format | Enum (3 options) | Format of the output image. | png |
Text prompt describing the image to generate
A frosted glass serum bottle on wet travertine stone, soft morning light, editorial product photographyAspect ratio of the output image.
1:1Output resolution tier: 1K, 2K or 4K.
1KFormat of the output image.
pngDeveloper documentation
Write a descriptive prompt: the built-in prompt enhancement expands short prompts, but specifics on subject, lighting and composition help.
Pick an aspect_ratio such as 1:1, 4:5, 16:9, 9:16 or 21:9.
Choose resolution (1K, 2K or 4K) and output_format (png, jpg or webp).
Submit and poll the returned request_id, or pass a webhook URL.
curl -X POST https://api.muapi.ai/api/v1/minimax-h3-image-highspeed-text-to-image \
-H "x-api-key: $MUAPI_API_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt": "A frosted glass serum bottle on wet travertine stone, soft morning light", "aspect_ratio": "4:5", "resolution": "2K"}'
Frequently asked
MiniMax H3 Image Highspeed is MiniMax's H3 image generation model in its faster Highspeed tier, with built-in prompt enhancement and 1K, 2K and 4K output.
$0.06 per image at 1K and 2K and $0.18 at 4K. Aspect ratio and output format add no extra charge. Pay per generation with no subscription.
Output is available at 1K, 2K and 4K as PNG, JPG or WEBP, set with `resolution` and `output_format`.
Thirteen ratios including 1:1, 4:5, 3:2, 16:9, 9:16 and 21:9, set with `aspect_ratio`.
Both accept the same parameters. Highspeed is the faster tier and is priced at twice the standard rate; use it for drafts and high-volume jobs, and the standard tier when you want the lowest price per image.
Requests are asynchronous: submit a job, then poll the returned `request_id` or pass a `webhook` URL to be notified on completion.
Yes. Sandbox API keys return mock results instantly with no credits deducted.