# Image models ### Quick reference * Set `imageOptions.source` to `aiGenerated` when using any of the model strings below. * If `imageOptions.model` is omitted, Gamma selects a model automatically. * Higher-tier, HD, and video models usually take longer to complete, so longer polling windows may be helpful. * All models below are available to API users (Pro plan and above). Models are grouped by credit cost. * See [Access and Pricing](/get-started/access-and-pricing.md) for plan and credit details. ### Standard models | Model Name | String | Credits/Image | | ----------------- | --------------------- | ------------- | | Flux 2 Fast | `flux-2-klein` | 2 | | Flux Kontext Fast | `flux-kontext-fast` | 2 | | Imagen 3 Fast | `imagen-3-flash` | 2 | | Luma Photon Flash | `luma-photon-flash-1` | 2 | | GPT Image 2 Mini | `gpt-image-2-mini` | 5 | | Flux 2 Pro | `flux-2-pro` | 8 | | Ideogram 3 Turbo | `ideogram-v3-turbo` | 10 | | Imagen 4 Fast | `imagen-4-fast` | 10 | | Luma Photon | `luma-photon-1` | 10 | | Recraft V4 | `recraft-v4` | 12 | | Leonardo Phoenix | `leonardo-phoenix` | 15 | ### Advanced models | Model Name | String | Credits/Image | | ------------------------------------ | ------------------------ | ------------- | | Flux 2 Flex | `flux-2-flex` | 20 | | Flux 2 Max | `flux-2-max` | 20 | | Flux Kontext Pro | `flux-kontext-pro` | 20 | | Ideogram 3 | `ideogram-v3` | 20 | | Imagen 4 | `imagen-4-pro` | 20 | | Recraft V3 | `recraft-v3` | 20 | | Nano Banana Pro (Gemini 3 Pro) | `gemini-3-pro-image` | 20 | | Nano Banana Flash (Gemini 2.5 Flash) | `gemini-2.5-flash-image` | 20 | | GPT Image | `gpt-image-1-medium` | 30 | | GPT Image 2 | `gpt-image-2` | 20 | | Dall-E 3 | `dall-e-3` | 33 | ### Premium models | Model Name | String | Credits/Image | | ------------------------------------ | ----------------------------- | ------------- | | Nano Banana 2 Mini | `gemini-3.1-flash-image-mini` | 34 | | Recraft V3 Vector | `recraft-v3-svg` | 40 | | Recraft V4 Vector | `recraft-v4-svg` | 40 | | Ideogram 3 Quality | `ideogram-v3-quality` | 45 | | Nano Banana 2 | `gemini-3.1-flash-image` | 50 | | Nano Banana Pro HD (Gemini 3 Pro HD) | `gemini-3-pro-image-hd` | 70 | | Nano Banana 2 HD | `gemini-3.1-flash-image-hd` | 75 | ### Ultra models | Model Name | String | Credits/Image | | ------------------ | ------------------ | ------------- | | Imagen 4 Ultra | `imagen-4-ultra` | 30 | | GPT Image Detailed | `gpt-image-1-high` | 120 | | GPT Image 2 HD | `gpt-image-2-hd` | 115 | | Recraft V4 Pro | `recraft-v4-pro` | 125 | ### Output dimensions Quality tiers (`low` / `medium` / `high`) affect detail and cost — not pixel count. Aspect ratio is the only parameter that changes output dimensions. | Provider | Model(s) | 1:1 | 16:9 | 9:16 | Max side | | -------- | ------------------------------------------------------------------------------------ | --------- | --------- | --------- | -------- | | OpenAI | `gpt-image-2-mini`, `gpt-image-2`, `gpt-image-2-hd` | 1024×1024 | 1536×1024 | 1024×1536 | 1536 px | | OpenAI | `gpt-image-1-medium`, `gpt-image-1-high` | 1024×1024 | 1536×1024 | 1024×1536 | 1536 px | | OpenAI | `gpt-image-1-mini-low`, `gpt-image-1-mini-medium`, `gpt-image-1-mini-high` | 1024×1024 | 1536×1024 | 1024×1536 | 1536 px | | Google | `imagen-3-flash`, `imagen-4-pro`, `imagen-4-ultra` | 1024×1024 | 1408×768 | 768×1344 | 1408 px | | Ideogram | `ideogram-v3`, `ideogram-v3-turbo`, `ideogram-v3-quality` | 1024×1024 | 1280×768 | 768×1344 | 1344 px | | Flux | `flux-1-quick` | 1024×1024 | 1376×768 | 768×1376 | 1376 px | | Flux | `flux-2-pro`, `flux-2-flex`, `flux-2-max`, `flux-kontext-fast`, `flux-kontext-pro` | 1440×1440 | 1920×1088 | 1088×1920 | 1920 px | | Leonardo | `leonardo-phoenix` | 1024×1024 | 1376×768 | 768×1376 | 1376 px | | Recraft | `recraft-v3`, `recraft-v3-svg` | 1024×1024 | 1820×1024 | 1024×1820 | 1820 px | | Luma | `luma-photon-1`, `luma-photon-flash-1` | 1536×1536 | 2048×1152 | 1152×2048 | 2048 px | | Gemini | `gemini-3.1-flash-image-mini`, `gemini-3.1-flash-image`, `gemini-3.1-flash-image-hd` | 1024×1024 | 1920×1080 | 1080×1920 | 1920 px | | Gemini | `gemini-3-pro-image` | 2048×2048 | 2752×1536 | 1536×2752 | 2752 px | | Gemini | `gemini-3-pro-image-hd` | 2048×2048 | 3840×2160 | 2160×3840 | 3840 px | | Gemini | `gemini-2.5-flash-image` | 1024×1024 | 1920×1080 | 1080×1920 | 1920 px | {% hint style="info" %} OpenAI models output 3:2 / 2:3 when 16:9 / 9:16 is requested. Other providers match the requested ratio exactly. {% endhint %} ### Related * [Generate from text](/guides/generate-api-parameters-explained.md) for `imageOptions` guidance * [Poll for results](/guides/async-patterns-and-polling.md) if you need longer polling windows for slower models * [Access and Pricing](/get-started/access-and-pricing.md) for plan and credit details --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://developers.gamma.app/reference/image-model-accepted-values.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.