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Add gpt-image-1.5 
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‎CHANGELOG.md‎

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# Changelog
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### 4.46.0
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- Add `gpt-image-1.5`.
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### 4.45.0
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- Add `gpt-5.2` models.
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‎Docs/Request-ImageEdit.md‎

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@@ -58,7 +58,7 @@ https://platform.openai.com/docs/guides/image-generation
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### Example 1: Edit an image with a prompt.
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```PowerShell
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Request-ImageEdit -Model 'gpt-image-1' -Prompt 'A bird on the desert' -Image 'C:\sand_with_fether.png' -OutFile 'C:\bird_on_desert.png' -Size 1024x1024
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Request-ImageEdit -Model 'gpt-image-1.5' -Prompt 'A bird on the desert' -Image 'C:\sand_with_fether.png' -OutFile 'C:\bird_on_desert.png' -Size 1024x1024
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```
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| Original | Generated |
@@ -68,7 +68,7 @@ Request-ImageEdit -Model 'gpt-image-1' -Prompt 'A bird on the desert' -Image 'C:
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### Example 2: Create variation image from source and mask.
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```PowerShell
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Request-ImageEdit -Model 'gpt-image-1' -Image C:\sand_with_feather.png -Mask C:\fether_mask.png -Prompt "A bird on the desert" -OutFile C:\edit2.png
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Request-ImageEdit -Model 'gpt-image-1.5' -Image C:\sand_with_feather.png -Mask C:\fether_mask.png -Prompt "A bird on the desert" -OutFile C:\edit2.png
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```
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| Source (sand_with_feather.png) | Mask (fether_mask.png) | Generated (edit2.png) |
@@ -81,7 +81,7 @@ Request-ImageEdit -Model 'gpt-image-1' -Image C:\sand_with_feather.png -Mask C:\
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### -Image
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(Required)
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The image(s) to edit. Must be a supported image file or an array of images. For gpt-image-1, each image should be a png, webp, or jpg file less than 25MB. For dall-e-2, you can only provide one image, and it should be a square png file less than 4MB.
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The image(s) to edit. Must be a supported image file or an array of images. For the GPT image models, each image should be a `png`, `webp`, or `jpg` file less than 50MB. You can provide up to 16 images. For dall-e-2, you can only provide one image, and it should be a square png file less than 4MB.
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```yaml
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Type: String[]
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### -Prompt
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(Required)
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A text description of the desired image(s). The maximum length is 1000 characters for dall-e-2, and 32000 characters for gpt-image-1.
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A text description of the desired image(s). The maximum length is 32000 characters for the GPT image models, 1000 characters for `dall-e-2` and 4000 characters for `dall-e-3`.
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```yaml
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Type: String
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```
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### -Model
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The model to use for image generation. Only dall-e-2 and gpt-image-1 are supported. Defaults to dall-e-2 unless a parameter specific to gpt-image-1 is used.
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The model to use for image generation. Only `dall-e-2` and the GPT image models are supported. Defaults to `dall-e-2` unless a parameter specific to the GPT image models is used.
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```yaml
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Type: String
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```
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### -Quality
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The quality of the image that will be generated. high, medium and low are only supported for gpt-image-1. dall-e-2 only supports standard quality. Defaults to auto.
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The quality of the image that will be generated.
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- `auto` (default value) will automatically select the best quality for the given model.
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- `high`, `medium` and `low` are supported for the GPT image models.
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- `hd` and `standard` are supported for `dall-e-3`.
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- `standard` is the only option for `dall-e-2`.
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```yaml
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Type: String
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```
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### -Size
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The size of the generated images. Must be one of `1024x1024`, `1536x1024` (landscape), `1024x1536` (portrait), or `auto` (default value) for gpt-image-1, and one of `256x256`, `512x512`, or `1024x1024` for dall-e-2.
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The size of the generated images. Must be one of `1024x1024`, `1536x1024` (landscape), `1024x1536` (portrait), or `auto` (default value) for the GPT image models, and one of `256x256`, `512x512`, or `1024x1024` for dall-e-2, and one of `1024x1024`, `1792x1024`, or `1024x1792` for `dall-e-3`.
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```yaml
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Type: String
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```
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### -ResponseFormat
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The format in which the generated images are returned. Must be one of `url`, `base64` or `byte`. gpt-image-1 only supports `base64`.
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The format in which the generated images are returned. Must be one of `url`, `base64` or `byte`. This parameter is only supported for `dall-e-2`, as the GPT image models always return images in `base64` format.
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```yaml
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Type: String

‎Docs/Request-ImageGeneration.md‎

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### -Prompt
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(Required)
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A text description of the desired image(s). The maximum length is 32000 characters for gpt-image-1, 1000 characters for dall-e-2 and 4000 characters for dall-e-3.
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A text description of the desired image(s). The maximum length is 32000 characters for the GPT image models, 1000 characters for `dall-e-2` and 4000 characters for `dall-e-3`.
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```yaml
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Type: String
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```
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### -Model
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The model to use for image generation. One of dall-e-2, dall-e-3, or gpt-image-1. Defaults to dall-e-2 unless a parameter specific to gpt-image-1 is used.
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The model to use for image generation. One of `dall-e-2`, `dall-e-3`, or a GPT image model. Defaults to `dall-e-2` unless a parameter specific to the GPT image models is used.
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```yaml
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Type: String
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```
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### -Size
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The size of the generated images. Must be one of `1024x1024`, `1536x1024` (landscape), `1024x1536` (portrait), or `auto` (default value) for gpt-image-1, one of `256x256`, `512x512`, or `1024x1024` for dall-e-2, and one of `1024x1024`, `1792x1024`, or `1024x1792` for dall-e-3.
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The size of the generated images. Must be one of `1024x1024`, `1536x1024` (landscape), `1024x1536` (portrait), or `auto` (default value) for the GPT image models, one of `256x256`, `512x512`, or `1024x1024` for `dall-e-2`, and one of `1024x1024`, `1792x1024`, or `1024x1792` for `dall-e-3`.
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```yaml
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Type: String
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```
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### -Quality
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The quality of the image that will be generated. `auto` (default value) will automatically select the best quality for the given model. high, medium and low are supported for gpt-image-1, hd and standard are supported for dall-e-3, standard is the only option for dall-e-2.
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The quality of the image that will be generated.
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- `auto` (default value) will automatically select the best quality for the given model.
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- `high`, `medium` and `low` are supported for the GPT image models.
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- `hd` and `standard` are supported for `dall-e-3`.
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- `standard` is the only option for `dall-e-2`.
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```yaml
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Type: String
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```
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### -Background
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Allows to set transparency for the background of the generated image(s). This parameter is only supported for gpt-image-1. Must be one of transparent, opaque or auto (default value).
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Allows to set transparency for the background of the generated image(s). This parameter is only supported for the GPT image models. Must be one of `transparent`, `opaque` or `auto` (default value). When `auto` is used, the model will automatically determine the best background for the image.
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```yaml
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Type: String
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```
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### -Moderation
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Control the content-moderation level for images generated by gpt-image-1. Must be either low for less restrictive filtering or auto (default value).
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Control the content-moderation level for images generated by the GPT image models. Must be either `low` for less restrictive filtering or `auto` (default value).
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```yaml
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```
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### -OutputCompression
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The compression level (0-100%) for the generated images. This parameter is only supported for gpt-image-1 with the webp or jpeg output formats, and defaults to 100.
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The compression level (0-100%) for the generated images. This parameter is only supported for the GPT image models with the `webp` or `jpeg` output formats, and defaults to 100.
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```yaml
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Type: UInt16
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```
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### -OutputFormat
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The format in which the generated images are returned. This parameter is only supported for gpt-image-1. Must be one of png, jpeg, or webp.
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The format in which the generated images are returned. This parameter is only supported for the GPT image models. Must be one of `png`, `jpeg`, or `webp`.
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```yaml
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```
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### -ResponseFormat
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The format in which the generated images are returned. Must be one of `url`, `base64` or `byte`. gpt-image-1 only supports `base64`.
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The format in which the generated images are returned. Must be one of `url`, `base64` or `byte`. This parameter is only supported for `dall-e-2`, as the GPT image models always return images in `base64` format.
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```yaml
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Type: String

‎Public/Images/Request-ImageEdit.ps1‎

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[Parameter()]
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[Completions(
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'gpt-image-1.5',
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'gpt-image-1',
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'gpt-image-1-mini',
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'dall-e-2'
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}
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if ($Model -like 'gpt-image-*') {
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# The output_format parameter is only supported for gpt-image-1.
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# The output_format parameter is only supported for the GPT image models.
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if ($PSBoundParameters.ContainsKey('OutputFormat')) {
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$PostBody.output_format = $OutputFormat
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}
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}
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}
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# reponse_formart parameter is not supported for gpt-image-1.
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# reponse_formart parameter is not supported for the GPT image models.
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if ($PostBody.Contains('response_format')) {
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$PostBody.Remove('response_format')
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}

‎Public/Images/Request-ImageGeneration.ps1‎

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[Parameter()]
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[Completions(
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'gpt-image-1.5',
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'gpt-image-1',
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'gpt-image-1-mini',
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'dall-e-3',
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}
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if ($Model -like 'gpt-image-*') {
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# The output_format parameter is only supported for gpt-image-1.
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# The output_format parameter is only supported for the GPT image models.
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if ($PSBoundParameters.ContainsKey('OutputFormat')) {
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$PostBody.output_format = $OutputFormat
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}
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}
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}
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# reponse_formart parameter is not supported for gpt-image-1.
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# reponse_formart parameter is not supported for the GPT image models.
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if ($PostBody.Contains('response_format')) {
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$PostBody.Remove('response_format')
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}

‎Tests/Images/Request-ImageEdit.tests.ps1‎

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Image = @(($script:TestImageData + '/fether_mask.png'), ($script:TestImageData + '/cupcake.png'))
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NumberOfImages = 3
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OutFile = Join-Path $TestDrive 'fileA.png'
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = 'auto'
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ErrorAction = 'Stop'
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}
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Mask = ($script:TestImageData + '/fether_mask.png')
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NumberOfImages = 1
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OutFile = Join-Path $TestDrive 'fileB.png'
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = 'auto'
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ErrorAction = 'Stop'
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}
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$Result | Should -Be 'https://dummyimage.example.com'
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}
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It 'gpt-image-1 model does not support response_format = url. Defaulting to object.' {
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It 'The GPT image models are not support response_format = url. Defaulting to object.' {
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$TestResponse = @'
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{
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"created": 1678359675,
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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OutFile = Join-Path $TestDrive 'file.png'
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ErrorAction = 'Stop'
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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OutFile = Join-Path $TestDrive 'file.png'
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PartialImages = 3
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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ResponseFormat = 'object'
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PartialImages = 1
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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ResponseFormat = 'base64'
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PartialImages = 1
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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ResponseFormat = 'byte'
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PartialImages = 0
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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ResponseFormat = 'byte'
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PartialImages = 1
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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ResponseFormat = 'byte'
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PartialImages = 1
@@ -367,7 +367,7 @@ Describe 'Request-ImageEdit' {
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{ $splat = @{
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Prompt = 'Hello'
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Image = ($script:TestImageData + '/fether_mask.png')
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Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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Size = '1024x1024'
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ErrorAction = 'Stop'
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}
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Image = @(($script:TestImageData + '/fether_mask.png'), ($script:TestImageData + '/sand_with_feather.png'))
407407
Prompt = 'sunflower'
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ResponseFormat = 'base64'
409-
Model = 'gpt-image-1'
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Model = 'gpt-image-1.5'
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NumberOfImages = 2
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Size = '1024x1024'
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Quality = 'low'
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439439
{ $splat = @{
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Image = $script:TestImageData + '/sand_with_feather.png'
441441
Prompt = 'A bird on the desert'
442-
Model = 'gpt-image-1'
442+
Model = 'gpt-image-1.5'
443443
OutFile = Join-Path $TestDrive 'file4.png'
444444
Size = '1024x1024'
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Stream = $true

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