MiniMax H3 Image Highspeed API
Faster H3 Image — images up to 4K from text, or edits combining up to 16 reference images.
MiniMax H3 Image Highspeed API playground
Params
Billed at this model’s published rate.
Result
Your generations will appear here
Other models from MiniMax
Same vendor, same API call — the differences are below.
| Model | Use case | Price | Resolution | Duration | Added |
|---|---|---|---|---|---|
| MiniMax H3 Image | Text → Image | from $3.80 / 1M output img tok | 1K · 2K · 4K | — | Nov 2026 |
| MiniMax H3 Max Recast | Video → Video | from $0.33 / sec | 768p · 1080p | — | Nov 2026 |
| MiniMax H3 Highspeed | Text → Video | from $0.04 / sec | 480P · 768P | 5–15s | Nov 2026 |
| MiniMax H3 Lite | Text → Video | from $0.025 / sec | 480P · 768P | 5–15s | Nov 2026 |
| MiniMax M3 | Image → Text | from $1.20 / 1M output text tok | — | — | Oct 2026 |
| MiniMax M3.1 Flash | Image → Text | from $0.60 / 1M output text tok | — | — | Oct 2026 |
| MiniMax H3 Context IR | Video → Text | from $1.80 / 1M output text tok | — | 4–15s | Oct 2026 |
| MiniMax H3 Max Relight | Video → Video | from $0.055 / sec | 480p · 768p · 1080p … | — | Oct 2026 |
MiniMax H3 Image Highspeed API in TypeScript, Python and REST
Install the SDK
TypeScript targets Node 20+ and ships with types; Python needs 3.10+ and is async. Over REST there is nothing to install: call https://api.picsart.com from any HTTP client.
npm install @picsart/ai-sdkpip install picsart-ai-sdkAuthenticate
Send your Picsart API key as a bearer token. The SDK does it for you once the client is created.
import { createClient } from '@picsart/ai-sdk';
const ai = createClient({
apiKey: process.env.PICSART_API_KEY, // sent as: Authorization: Bearer <key>
apiUrl: 'https://api.picsart.com',
});import os
from picsart_ai_sdk import create_client
ai = create_client(
api_key=os.environ["PICSART_API_KEY"], # sent as: Authorization: Bearer <key>
api_url="https://api.picsart.com",
)Authorization: Bearer <PICSART_API_KEY>Make a request
Call the model by its id. Over REST, one endpoint serves every model: POST /workflows/v1/models/execute with the model id and its input in the body. The outer params is the envelope every workflow takes; the inner one is this model's input, with the same names generate() takes.
import { createClient } from '@picsart/ai-sdk';
const ai = createClient({
apiKey: process.env.PICSART_API_KEY,
apiUrl: 'https://api.picsart.com',
});
const result = await ai.generate('minimax-h3-image-highspeed', {
prompt: "A serene mountain lake at golden hour, ultra detailed",
resolution: "2K",
aspectRatio: "auto"
});
console.log(result.url); // image URLimport asyncio
import os
from picsart_ai_sdk import create_client
async def main() -> None:
async with create_client(
api_key=os.environ["PICSART_API_KEY"],
api_url="https://api.picsart.com",
) as ai:
result = await ai.generate("minimax-h3-image-highspeed", {
"prompt": "A serene mountain lake at golden hour, ultra detailed",
"resolution": "2K",
"aspectRatio": "auto",
})
print(result.url) # image URL
asyncio.run(main())curl -X POST 'https://api.picsart.com/workflows/v1/models/execute' \
-H 'Authorization: Bearer $PICSART_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"params": {
"model": "minimax-h3-image-highspeed",
"params": {
"prompt": "A serene mountain lake at golden hour, ultra detailed",
"resolution": "2K",
"aspectRatio": "auto"
}
}
}'Parameters
7 parameters, the same for the SDK and for the inner params over REST. Required ones must be supplied; the rest fall back to their defaults.
| Parameter | Type | Required | Default | Details |
|---|---|---|---|---|
promptWhat to make, in plain language: the subject, style and composition. With an input image or video, what to change. | text | yes | — | max 32000 chars |
resolutionOutput size. Higher costs more and takes longer. | enum | no | 2K | 1K, 2K, 4K |
aspectRatioShape of the output as width:height. An auto or adaptive option follows the input image. | enum | no | auto | auto (follows the input), 1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16, 21:9, 3:1, 1:3 |
countHow many results to make in one call. Each one is charged. | enum | no | 1 | 1, 2, 4, 6, 8, 10 |
enhancePromptLet the model rewrite the prompt for a better result before generating. | boolean | no | true | — |
outputFormatFile format of the result. | enum | no | jpeg | jpeg, png, webp |
imageUrlsInput images, as URLs: the image to edit, or references for subject, style or composition. | file (image[]) | no | — | — |
Response
generate() resolves once the job completes. One or more image URLs. Over REST the output is at response.result, inside the gateway's status envelope with the task id, its status and the amount charged.
{
"items": [
{
"url": "https://cdn.picsart.com/…/result"
}
],
"model": "minimax-h3-image-highspeed"
}{
"status": "success",
"response": {
"id": "task_abc123",
"status": "COMPLETED",
"result": {
"url": "https://cdn.picsart.com/…/result",
"items": [
{
"url": "https://cdn.picsart.com/…/result"
}
],
"model": "minimax-h3-image-highspeed"
}
}
}MiniMax H3 Image Highspeed API advanced usage
Overview
Alongside the unified model APIs, we expose compatibility APIs that take each vendor's original parameters exactly as the vendor defines them — nothing renamed, nothing reshaped on the way through.
That makes them the shortest path onto Picsart if you already work with the vendor directly: the request bodies you've already written keep working as they are. You keep their parameter names and defaults, and you get the vendor's full parameter set rather than the subset that is shared across every model.
The cost is that a request is written for one vendor — switching models later means rewriting it, and results come back in the vendor's own shape. When you'd rather write once and change models freely, use the unified API.
Make a request
Call the workflow with ai.apis.run() in TypeScript or Python, or hit /workflows/{workflow}/execute directly — params is passed through untouched either way.
These endpoints are addressed by workflow name rather than model id: the one in this model's header, since one model runs as one workflow. Authentication is unchanged — your Picsart API key as a bearer token (see Authentication).
import { createClient, ApiRunMode } from '@picsart/ai-sdk';
const ai = createClient({
apiKey: process.env.PICSART_API_KEY,
apiUrl: 'https://api.picsart.com',
});
// Calls the 'minimax/h3-image/generations' workflow directly — params are sent as-is.
const { result, usage } = await ai.apis.run('minimax/h3-image/generations', {
prompt: "A serene mountain lake at golden hour, ultra detailed"
}, {
mode: ApiRunMode.SYNC,
});
console.log(result); // workflow-specific output
console.log(usage?.credits); // amount charged, in $import asyncio
import os
from picsart_ai_sdk import ApiRunMode, create_client
async def main() -> None:
async with create_client(
api_key=os.environ["PICSART_API_KEY"],
api_url="https://api.picsart.com",
) as ai:
# Calls the 'minimax/h3-image/generations' workflow directly — params are sent as-is.
response = await ai.apis.run("minimax/h3-image/generations", {
"prompt": "A serene mountain lake at golden hour, ultra detailed",
}, mode=ApiRunMode.SYNC)
print(response["result"]) # workflow-specific output
print((response.get("usage") or {}).get("credits")) # amount charged, in $
asyncio.run(main())curl -X POST 'https://api.picsart.com/workflows/minimax/h3-image/generations/execute' \
-H 'Authorization: Bearer $PICSART_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"params": {
"prompt": "A serene mountain lake at golden hour, ultra detailed"
}
}'Parameters
11 parameters, sent inside params. These are the vendor's own names, so they line up one-for-one with the vendor's documentation. Required ones must be supplied; the rest fall back to their defaults.
| Parameter | Type | Required | Default | Details |
|---|---|---|---|---|
modelModel id: MiniMax-H3-Image or MiniMax-H3-Image-Highspeed (faster). | string | no | MiniMax-H3-Image | MiniMax-H3-ImageMiniMax-H3-Image-Highspeed |
promptImage description, up to 32000 characters | string | yes | — | max 32000 chars |
imagesUp to 16 reference images; when given the request is an edit. Refer to them in the prompt as "Image 1, Image 2, ..." in this order. | MinimaxImageInput[] | no | — | — |
└ image_urlReference image URL | string | yes | — | — |
nNumber of images (1–10) | number | no | 1 | 1–10 |
sizeExact output size WIDTHxHEIGHT (0.65–20 MP, ratio 1:3–3:1), or auto (default) to use aspect_ratio + area. Not combinable with aspect_ratio / area. | string | no | — | e.g. 2720x1536 |
aspect_ratioAspect ratio X:Y (1:3–3:1) when size is auto; auto (default) lets the model decide (from the references in an edit). | string | no | — | e.g. 16:9 |
areaTarget area when size is auto (1024², 2048², 4096²) | string | no | 4K | 1K2K4K |
output_formatOutput format | string | no | jpeg | pngjpegjpgwebp |
output_compressionJPEG/WEBP compression quality (0–100) | number | no | 95 | 0–100 |
disable_prompt_enhancedText-to-image only (edits always enhance): use the prompt as is. Requires an explicit size or aspect_ratio. | boolean | no | false | — |
optionsGenAI options (safety checks, Picsart Drive) | object | no | — | — |
└ safety_checksSafety check settings | object | no | — | — |
└ enabledWhether to run content moderation. Defaults to true. | boolean | no | — | — |
└ driveSave result to Picsart Drive | object | no | — | — |
└ nameFile name in Picsart Drive | string | yes | — | — |
└ attributesCustom attributes to attach to the file | object | no | — | — |
└ folderTarget folder in Picsart Drive | object | no | — | — |
└ inputs_transformationInput transformation settings | object | no | — | — |
└ downscale_oversized_imagesWhether to downscale oversized input images. Defaults to false. | boolean | no | — | — |
Response
Over HTTP the output arrives inside a status envelope, at response.result. ai.apis.run() unwraps that envelope for you and resolves to { result, usage } instead. Either way the result itself is the vendor's own shape.
{
"result": {
"items": [
{
"url": "https://cdn.picsart.com/…/result.jpg",
"mimeType": "image/jpeg",
"size": "…",
"revised_prompt": "…",
"driveFile": {
"id": "wf_abc123"
}
}
]
}
}{
"status": "success",
"response": {
"id": "wf_abc123",
"status": "COMPLETED",
"result": {
"items": [
{
"url": "https://cdn.picsart.com/…/result.jpg",
"mimeType": "image/jpeg",
"size": "…",
"revised_prompt": "…",
"driveFile": {}
}
]
}
}
}MiniMax H3 Image Highspeed API pricing
Rates
What this model costs, in USD. Every row is an exact rate — the columns are the settings that change it.
Charged after the request finishes, on what it actually used.
| Token type | Rate |
|---|---|
| Input text | $2.30 / 1M tokens |
| Input image | $3.00 / 1M tokens |
| Output image | $7.60 / 1M tokens |