> ## Documentation Index > Fetch the complete documentation index at: https://dripart-claude-comfy-concurrency-limits-page-s84u33.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # OpenRouterImageNode - ComfyUI Built-in Node Documentation > This node generates or edits images through OpenRouter using Microsoft's MAI-Image-2.6 models. This node generates or edits images through OpenRouter using Microsoft's MAI-Image-2.6 models. It supports text-to-image generation as well as image-guided editing with up to five reference images, in seven aspect ratios at either 1K or 1.5K resolution. ## Inputs ### Common Inputs | Parameter | Description | Data Type | Required | Range | | - | - | - | - | - | | `model` | The OpenRouter image model used to generate the image. Selecting a model reveals the model-specific options listed below. | DYNAMIC\_COMBO | Yes | `microsoft/mai-image-2.6`
`microsoft/mai-image-2.6-flash` | ### Mai Image 2.6 and Mai Image 2.6 Flash Inputs Shared by both model options (`microsoft/mai-image-2.6` and `microsoft/mai-image-2.6-flash`), which expose the same set of parameters. | Parameter | Description | Data Type | Required | Range | | - | - | - | - | - | | `prompt` | Describes the image to generate, or the edit to apply to the reference images. Up to 20000 characters. Default: `""` (empty). At least 1 character is required after removing surrounding whitespace. | STRING | Yes | 1 to 20000 characters | | `aspect_ratio` | Aspect ratio of the generated image, also applied when reference images are connected. Default: `"1:1"`. `"auto"` lets the model choose the ratio for text to image (rendered at the 1.5K size) and keeps the aspect ratio of the first reference image when editing. | COMBO | Yes | `"1:1"`
`"16:9"`
`"9:16"`
`"3:2"`
`"2:3"`
`"4:3"`
`"3:4"`
`"auto"` | | `resolution` | Output size tier. 1K is about 1 megapixel (1:1 is 1024x1024, 16:9 is 1360x768); 1.5K is about 2.3 megapixels (1:1 is 1536x1536, 16:9 is 2048x1152). Default: `"1K"`. Ignored when `aspect_ratio` is `"auto"`. | COMBO | Yes | `"1K"`
`"1.5K"` | | `seed` | Seed to determine if the node should re-run; the API has no seed, so actual results are nondeterministic regardless of this value. Default: `42`. | INT | Yes | 0 to 2147483647 | ### Reference Inputs | Parameter | Description | Data Type | Required | Range | | - | - | - | - | - | | `image_1` ... `image_5` | Growable slot: connect 1 to 5 reference images for image-guided editing; a batched input counts once per image. Slots are optional and can be left empty (minimum 0 connected). | IMAGE | No | 0 to 5 images | **Notes:** * A maximum of 5 reference images is supported in total across all connected slots; a batched input counts once per image. * The `prompt` must contain at least 1 character after surrounding whitespace is removed, and cannot exceed 20000 characters. * Reference images are sent as PNG data and are limited to a total of 2048 x 2048 pixels. * The `aspect_ratio` setting is applied to the output even when reference images are connected. * When `aspect_ratio` is `"auto"`, the `resolution` setting is ignored. With no reference images the model picks the ratio for text to image and renders at the 1.5K size; with reference images connected the aspect ratio of the first reference image is kept. * The seed value does not affect the API result; it only determines whether the node re-runs. ## Outputs | Output Name | Description | Data Type | | - | - | - | | `IMAGE` | The generated or edited image. If the service returns several images, they are combined into a single batched IMAGE output. An error is raised if no image is returned or if a returned image cannot be decoded. | IMAGE | > This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/OpenRouterImageNode/en.md) *** **Source fingerprint (SHA-256):** `d201c18deccd2523041a24427996f51127ca201dfe10fad60c6f768ab79bf852` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.