> This page is for MAISI, version 1.0.0.
> For other versions, use one of these documentation indexes:
> - 1.0.1 (Latest) (default): https://docs.nvidia.com/nim/medical/maisi/1.0.1/llms.txt
> - 1.0.0: https://docs.nvidia.com/nim/medical/maisi/1.0.0/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nim/medical/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nim/medical/_mcp/server.

# Support Matrix

## Models

MAISI NIM supports the following models:

| Model Name | Model Version    | Model URL                                                                        |
| ---------- | ---------------- | -------------------------------------------------------------------------------- |
| MAISI      | 0.4.5 | [https://github.com/Project-MONAI/model-zoo/tree/dev/models/maisi_ct_generative](https://github.com/Project-MONAI/model-zoo/tree/dev/models/maisi_ct_generative) |


## Supported Hardware

### Validated GPUs

| GPU          | GPU Memory (GB) | Precision |                                              |
| ------------ | :-------------: | :-------: | -------------------------------------------- |
| A100 PCIe    |       80        |   FP32    |                                              |
| A100 SXM4    |       80        |   FP32    |                                              |
| H100 PCIe    |       80        |   FP32    |                                              |
| H100 HBM3    |       80        |   FP32    |                                              |
| L40s         |       48        |   FP32    | *See table below for image size limitations* |
| RTX 6000 Ada |       48        |   FP32    | *See table below for image size limitations* |

### Required GPU Memory

Output image size is the most defining factor for the amount of required GPU memory, as depicted in the table below. However, please check the exact configuration, as other parameters also contribute to GPU memory usage.

| Examples | `output_size` | Peak Memory (VRAM) |
| -------- | ------------- | :----------------: |
| [1](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_16g_256x256x128.json) | 256x256x128 | 14G |
| [2](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_16g_256x256x256.json), [3](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_24g_256x256x256.json) | 256x256x256 | 14G, 22G |
| [4](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_16g_512x512x128.json), [5](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_24g_512x512x128.json), [6](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_80g_512x512x128.json) | 512x512x128 | 14G, 18G, 37G |
| [7](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_24g_512x512x512.json), [8](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_32g_512x512x512.json), [9](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_80g_512x512x512.json) | 512x512x512 | 22G, 26G, 44G |
| [10](https://github.com/Project-MONAI/tutorials/tree/main/generation/maisi/configs/config_infer_80g_512x512x768.json) | 512x512x768 | 55G |

### GPU Microarchitecture Compatibility

* Ampere
* Hopper

### CUDA Compute Capability

This NIM requires CUDA Compute Capability of `≥ 7.0`.