# Google Models Every model that `bild` offers from Google (provider ID `google`, API key variable `GOOGLE_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 google/` 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). 5 image models, 5 video models. ## Contents - [Veo 3.1](#veo-31) - [Veo 3.1 fast](#veo-31-fast) - [Veo 3.1 lite](#veo-31-lite) - [Gemini 3 Pro Image](#gemini-3-pro-image) - [Gemini Nano Banana 2.1](#gemini-nano-banana-21) - [Gemini 3.1 Flash Image](#gemini-31-flash-image) - [Gemini 3.1 Flash Lite Image](#gemini-31-flash-lite-image) - [Gemini 2.5 Flash Preview Image](#gemini-25-flash-preview-image) - [Gemini Omni 1.1 Flash](#gemini-omni-11-flash) - [Gemini Omni Flash Preview](#gemini-omni-flash-preview) ## Veo 3.1 Name | Medium | Aliases | Full ID -----|--------|---------|-------- Veo 3.1 | video | `veo`, `veo-3.1` | `google/veo-3.1-generate-preview` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 16:9, 9:16 `--resolution` | Allowed values: 720p, 1080p, 4k `--duration` | Allowed values: 4, 6, 8; Rule: forced to 8 with any input media or resolution 1080p or 4k `--input-media` | Repeat maximum: 3; Veo 3.1 special usage: <[first:\|last:]media-file>. For the media to be used for the opening or closing frame, add a 'first:' or 'last:' prefix (e.g., first:image.png). A closing image requires an opening image. Unprefixed images are references, not opening frames. Alternatively, supply one video to extend it; images and a video cannot be combined. See online docs for details on specifying frames for input media: https://bildomat.com/docs. `--seed` | `--person-generation` | Google accepts allow_all for text-to-video and video extension, and only allow_adult for image-to-video, interpolation, and reference-image requests; in the EU, the UK, Switzerland, and the MENA regions only allow_adult is accepted. See https://ai.google.dev/gemini-api/docs/veo. `--negative-prompt` | ## Veo 3.1 fast Name | Medium | Aliases | Full ID -----|--------|---------|-------- Veo 3.1 fast | video | `veo-3.1-fast` | `google/veo-3.1-fast-generate-preview` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 16:9, 9:16 `--resolution` | Allowed values: 720p, 1080p, 4k `--duration` | Allowed values: 4, 6, 8; Rule: forced to 8 with any input media or resolution 1080p or 4k `--input-media` | Repeat maximum: 3; Veo 3.1 family special usage: <[first:\|last:]media-file>. For the media to be used for the opening or closing frame, add a 'first:' or 'last:' prefix (e.g., first:image.png). A closing image requires an opening image. Unprefixed images are references, not opening frames. Alternatively, supply one video to extend it; images and a video cannot be combined. See online docs for details on specifying frames for input media: https://bildomat.com/docs. `--seed` | `--person-generation` | Google accepts allow_all for text-to-video and video extension, and only allow_adult for image-to-video, interpolation, and reference-image requests; in the EU, the UK, Switzerland, and the MENA regions only allow_adult is accepted. See https://ai.google.dev/gemini-api/docs/veo. `--negative-prompt` | ## Veo 3.1 lite Name | Medium | Aliases | Full ID -----|--------|---------|-------- Veo 3.1 lite | video | `veo-3.1-lite` | `google/veo-3.1-lite-generate-preview` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 16:9, 9:16 `--resolution` | Allowed values: 720p, 1080p `--duration` | Allowed values: 4, 6, 8; Rule: forced to 8 with any input media or resolution 1080p `--input-media` | Repeat maximum: 1; Veo 3.1 family special usage: <[first:\|last:]media-file>. For the media to be used for the opening or closing frame, add a 'first:' or 'last:' prefix (e.g., first:image.png). An unprefixed image or first: selects the opening frame. A closing image requires an opening image, so the one-input cap prevents using last: successfully. Bildomat can submit one video for extension instead; the provider determines whether Lite accepts that operation. See online docs for details on specifying frames for input media: https://bildomat.com/docs. `--seed` | `--person-generation` | Google accepts allow_all for text-to-video and only allow_adult for image-to-video, interpolation, and reference-image requests; in the EU, the UK, Switzerland, and the MENA regions only allow_adult is accepted. See https://ai.google.dev/gemini-api/docs/veo. ## Gemini 3 Pro Image Name | Medium | Aliases | Full ID -----|--------|---------|-------- Gemini 3 Pro Image | image | `gemini-3-pro` | `google/gemini-3-pro-image` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 `--resolution` | Allowed values: 1K, 2K, 4K `--thinking-level` | Allowed values: low, high `--include-thoughts` | `--input-media` | Repeat maximum: 14 ## Gemini Nano Banana 2.1 Name | Medium | Aliases | Full ID -----|--------|---------|-------- Gemini Nano Banana 2.1 | image | none | `google/gemini-nano-banana-2.1` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 1:4, 1:8, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 8:1, 9:16, 16:9, 21:9 `--resolution` | Allowed values: 1K, 2K, 4K `--thinking-level` | Allowed values: minimal, medium, high `--include-thoughts` | `--input-media` | Repeat maximum: 14 ## Gemini 3.1 Flash Image Name | Medium | Aliases | Full ID -----|--------|---------|-------- Gemini 3.1 Flash Image | image | `gemini`, `gemini-3.1`, `gemini-3.1-flash`, `gemini-flash`, `nano-banana` | `google/gemini-3.1-flash-image` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 1:4, 1:8, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 8:1, 9:16, 16:9, 21:9 `--resolution` | Allowed values: 512, 1K, 2K, 4K `--thinking-level` | Allowed values: minimal, high `--include-thoughts` | `--input-media` | Repeat maximum: 14 ## Gemini 3.1 Flash Lite Image Name | Medium | Aliases | Full ID -----|--------|---------|-------- Gemini 3.1 Flash Lite Image | image | `gemini-3.1-lite`, `gemini-3.1-flash-lite` | `google/gemini-3.1-flash-lite-image` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 `--resolution` | Allowed values: 1K `--thinking-level` | Allowed values: low, high `--include-thoughts` | `--input-media` | Repeat maximum: 14 ## Gemini 2.5 Flash Preview Image Name | Medium | Aliases | Full ID -----|--------|---------|-------- Gemini 2.5 Flash Preview Image | image | `gemini-2.5`, `gemini-2.5-flash` | `google/gemini-2.5-flash-image` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 `--input-media` | ## Gemini Omni 1.1 Flash Name | Medium | Aliases | Full ID -----|--------|---------|-------- Gemini Omni 1.1 Flash | video | none | `google/gemini-omni-1.1-flash` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 16:9, 9:16 `--resolution` | Allowed values: 360p, 720p, 1080p, 4k `--input-media` | ## Gemini Omni Flash Preview Name | Medium | Aliases | Full ID -----|--------|---------|-------- Gemini Omni Flash Preview | video | `gemini-omni`, `gemini-omni-flash` | `google/gemini-omni-flash-preview` Option | Constraints -------|------------ `--aspect-ratio` | Allowed values: 16:9, 9:16 `--input-media` | Revised 2026-10-08