
Most image models output 1 to 4 megapixels. MiniMax H3 Image generates about 16 megapixels directly, from 4096×4096 at 1:1 up to 6272×2688 at 21:9, with no separate upscaling step. MiniMax says it kept the compute cost manageable, so this level of detail is practical for everyday work such as print, wallpapers and large banners. The panorama shown was made with Nano Banana 2.1 at 4K.

In MiniMax's showcase, the model draws logic puzzles in Chinese and English and solves them correctly on the board, with readable conditions, stamps and tables. That points to text that follows the meaning of the prompt, not just the spelling, which helps with infographics, explainers and posters. The infographic shown was made with Nano Banana 2.1.

MiniMax describes H3 Image as having the strongest instruction following among open-source image models. It turns a creative concept into concrete characters, scenes and atmosphere, and keeps the layout, objects and wording you ask for. The product poster shown was made with Nano Banana 2.1.

Upload 1 to 16 images and refer to them by order as Picture 1, Picture 2 and so on. MiniMax shows an empty room and nine furniture photos combined into one furnished living room, an untextured 3D render turned into a film still, and a game map turned into a first-person game view. The character scenes shown were made with Nano Banana 2.1.

The model expects a full description: subject, setting, lighting, camera angle, materials and mood. A short idea still works through the API's prompt enhancement, but the more you specify, the less the model has to guess.
Results are best at around 16 megapixels. Pick the aspect ratio first, then use a matching size such as 4096×4096 for square, 5472×3072 for 16:9 or 3072×5472 for vertical posters.
For edits, the upload order sets the names: the first image is Picture 1, the second is Picture 2. Write instructions such as "place the sofa from Picture 2 in the room from Picture 1 and keep the window light unchanged".
The API returns the expanded prompt it actually used. If the result is close but not right, edit that revised prompt, turn prompt enhancement off and generate again for precise control.
MiniMax H3 Image is not on GoEnhance yet, but Nano Banana 2.1 is ready in our text-to-image studio with output up to 4K, sharp text and multiple reference images. We will update this page when MiniMax H3 Image is added.
Try Nano Banana 2.1