Overview
MiniMax H3 Image is an open-weight image generation and editing model built on MiniMax H3. It supports text-to-image generation, reference-based generation, and image editing with up to 16 reference images. Applications include illustrations, product concepts, visual storytelling, and editing existing images. (minimax.io)
Release
The official model release notes list November 10, 2026. MiniMax’s separate announcement is dated November 11, 2026. (platform.minimax.io)
Capabilities and limitations
- MiniMax reports 4096 × 4096 generation in under 10 seconds; this is a vendor-reported performance claim, not a guaranteed latency. The model card describes an effective working range of approximately 4–20 megapixels, with best results generally around 16 megapixels. (minimax.io)
- The API supports 1–10 output images per request. Explicit dimensions must cover 655,360–20,000,000 pixels with an aspect ratio between 1:3 and 3:1. Editing accepts 1–16 reference images, subject to file and request-size limits. (platform.minimax.io)
- API prompts are limited to 32,000 Unicode characters. When text-to-image prompt enhancement is disabled, only approximately the first 4,096 tokens are read. Local inference expects a detailed English description; MiniMax provides prompt-enhancement options. (platform.minimax.io)
- The open weights are subject to the MiniMax-H3-Image Community License, not an unrestricted grant. Its applicable territory excludes the United States, European Union, United Kingdom, and Republic of Korea; interested users in excluded territories are directed to contact MiniMax about a license. Separate prior written authorization is also required under the license for specified commercial circumstances, including annualized revenue above USD 1 million or providing a hosted service to third parties. API service terms may differ. (github.com)
Official API pricing
Prices below are for the standard MiniMax-H3-Image, not Highspeed. They are token-based rates, not fixed per-image charges. The domestic and international platforms are separate offerings; their prices are not currency conversions. Checked November 15, 2026. (platform.minimax.io)
| Platform | Input text | Input image | Output image |
|---|---|---|---|
| International pricing | USD 2.30 / million tokens | USD 1.50 / million tokens | USD 3.80 / million tokens |
| Mainland China pricing | CNY 15 / million tokens | CNY 10 / million tokens | CNY 25 / million tokens |
The separate H3-Image-Context-IR prompt-enhancement API lists input at USD 2.30 or CNY 15 per million tokens on the respective platforms; its output price is not listed in those pricing tables. Text input for image generation includes tokens produced by prompt enhancement. Actual request cost varies with usage. (platform.minimax.io)
Limited-time offer: Both pricing pages state that requests with a final delivered image of at least 16,600,000 pixels receive 50% off the total request cost until November 17, 2026 at 16:00 UTC, exclusive—November 18 at 00:00 Beijing time. This condition applies to standard and Highspeed, but the table above lists standard rates only. (platform.minimax.io)