MiniMax H3 Image (MiniMax-H3-Image) is MiniMax’s open-weight image model, released November 10, 2026. One 33.1B-parameter model handles text-to-image and editing with up to 16 reference images, at 1K, 2K or 4K (about 16 megapixels). LeafReel does not offer it yet; Nano Banana 2.1 makes 4K images here for 34 credits.
Is MiniMax H3 Image free?
The weights are free to download on Hugging Face, but the MiniMax-H3-Image Community License excludes the United States, the European Union, the United Kingdom and South Korea, and the full model needs about 135 GiB of GPU memory. MiniMax’s paid API lists about $0.022 for a 1K image and $0.069 for a 4K image at full price.
MiniMax H3 Image vs Nano Banana 2.1 and GPT Image 2
MiniMax H3 Image is not available on LeafReel yet. For similar work here, Nano Banana 2.1 makes 1K, 2K or 4K images for 12, 20 or 34 credits and accepts up to 10 reference images. GPT Image 2 makes 1K images for 6 credits. Nano Banana Pro costs 18, 29 or 51 credits at 1K, 2K or 4K. H3 Image accepts up to 16 references.
Looking for MiniMax H3 video? MiniMax H3 makes video clips with sound on LeafReel.
How to use
- 01Write the prompt in any languageMiniMax’s optional prompt expander turns a short prompt in any language into a detailed English prompt.
- 02Add up to 16 reference images to editThe same model edits images. References can be JPG, PNG, WebP, HEIC or HEIF, up to 64 MiB and 128 to 8,192 pixels per side.
- 03Choose 1K, 2K or 4KMiniMax recommends 4K, about 16 megapixels, such as 4096×4096 for 1:1 or 5472×3072 for 16:9.
Prompt tips
- Put every word that must appear in the image in quotation marks and say where it goes.
- There is no negative prompt. Describe what you want instead of what to avoid.
- Use 4K when detail matters; MiniMax says 4K gives the best results.
- Aspect ratios run from 1:3 to 3:1 through the MiniMax API.