# xAI Models Every model that `bild` offers from xAI (provider ID `xai`, API key variable `XAI_API_KEY`), with every option each model accepts and the constraints the model declares. An option the provider requires opens with **Required.**; every other option is optional. `bild info xai/` prints the same facts for the binary you run. What the constraints mean is described in [Parameter adjustment](../parameter-adjustment.md), the flags in [Generation flags](../generation-flags.md), and how to name a model in [Model specifiers](../model-specifiers.md). 4 image models, 3 video models. ## Contents - [Grok Imagine Image Quality](#grok-imagine-image-quality) - [Grok Imagine Image Quality Latest](#grok-imagine-image-quality-latest) - [Grok Imagine Image](#grok-imagine-image) - [Grok Imagine Image 2.0](#grok-imagine-image-20) - [Grok Imagine Video](#grok-imagine-video) - [Grok Imagine Video 1.5](#grok-imagine-video-15) - [Grok Imagine Video 1.5 Lite](#grok-imagine-video-15-lite) ## Grok Imagine Image Quality Name | Medium | Aliases | Full ID -----|--------|---------|-------- Grok Imagine Image Quality | image | `grok` | `xai/grok-imagine-image-quality` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 2:1, 1:2, 19.5:9, 9:19.5, 20:9, 9:20, auto `--resolution` | Allowed values: 1k, 2k `--num-images` | Allowed range: 1 to 10 `--input-media` | Repeat maximum: 3; Takes images only; a video source fails the run. ## Grok Imagine Image Quality Latest Name | Medium | Aliases | Full ID -----|--------|---------|-------- Grok Imagine Image Quality Latest | image | `grok-latest` | `xai/grok-imagine-image-quality-latest` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 2:1, 1:2, 19.5:9, 9:19.5, 20:9, 9:20, auto `--resolution` | Allowed values: 1k, 2k `--num-images` | Allowed range: 1 to 10 `--input-media` | Repeat maximum: 3; Takes images only; a video source fails the run. ## Grok Imagine Image Name | Medium | Aliases | Full ID -----|--------|---------|-------- Grok Imagine Image | image | none | `xai/grok-imagine-image` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 2:1, 1:2, 19.5:9, 9:19.5, 20:9, 9:20, auto `--resolution` | Allowed values: 1k, 2k `--num-images` | Allowed range: 1 to 10 `--input-media` | Repeat maximum: 3; Takes images only; a video source fails the run. ## Grok Imagine Image 2.0 Name | Medium | Aliases | Full ID -----|--------|---------|-------- Grok Imagine Image 2.0 | image | `grok-2.0`, `grok-2` | `xai/grok-imagine-image-2.0` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 2:1, 1:2, 19.5:9, 9:19.5, 20:9, 9:20, auto `--resolution` | Allowed values: 1k, 2k `--quality` | Allowed values: low, medium `--num-images` | Allowed range: 1 to 10 `--input-media` | Repeat maximum: 3; Takes images only; a video source fails the run. ## Grok Imagine Video Name | Medium | Aliases | Full ID -----|--------|---------|-------- Grok Imagine Video | video | `grok-video` | `xai/grok-imagine-video` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 `--resolution` | Allowed values: 480p, 720p `--duration` | Allowed range: 1 to 15 `--input-media` | Repeat maximum: 1; Takes images only; a video source fails the run. ## Grok Imagine Video 1.5 Name | Medium | Aliases | Full ID -----|--------|---------|-------- Grok Imagine Video 1.5 | video | none | `xai/grok-imagine-video-1.5` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 `--resolution` | Allowed values: 480p, 720p, 1080p `--duration` | Allowed range: 1 to 15 `--input-media` | Repeat maximum: 1; Takes images only; a video source fails the run. ## Grok Imagine Video 1.5 Lite Name | Medium | Aliases | Full ID -----|--------|---------|-------- Grok Imagine Video 1.5 Lite | video | none | `xai/grok-imagine-video-1.5-lite` Generate video from a text prompt or one reference image. Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 `--resolution` | Allowed values: 480p, 720p, 1080p `--duration` | Allowed range: 1 to 15 `--input-media` | Repeat maximum: 1; Supply one image for image-to-video generation. Takes images only; a video source fails the run. Revised 2026-10-06