ai-chatbot/lib/ai/fal-image-models.ts

export const FAL_IMAGE_BASE_URL = "https://fal.run";
export const FAL_NANO_BANANA_2_MODEL_ID = "fal-ai/nano-banana-2";
export const FAL_NANO_BANANA_2_EDIT_MODEL_ID = "fal-ai/nano-banana-2/edit";
export const FAL_GPT_IMAGE_2_EDIT_MODEL_ID = "openai/gpt-image-2/edit";

export interface FalImageModelPreset {
  modelId: string;
  displayName: string;
  description: string;
  supportsVision: boolean;
  supportsImageGen: boolean;
  capabilities?: Record<string, any>;
  defaultParams?: Record<string, any>;
  imageGenConfig?: Record<string, any>;
  sortOrder: number;
}

export const FAL_IMAGE_MODEL_PRESETS: FalImageModelPreset[] = [
  {
    modelId: FAL_NANO_BANANA_2_MODEL_ID,
    displayName: "FAL Nano Banana 2",
    description:
      "FAL 官方 Nano Banana 2 文生图模型。无参考图时用于生成图片；如传入参考图，系统会自动切换到官方 /edit 端点。",
    supportsVision: true,
    supportsImageGen: true,
    capabilities: {
      provider: "fal",
      kind: "text-to-image",
      endpoint: FAL_NANO_BANANA_2_MODEL_ID,
      editEndpoint: FAL_NANO_BANANA_2_EDIT_MODEL_ID,
      apiFormat: "fal-nano-banana-2",
      officialUrl: "https://fal.ai/models/fal-ai/nano-banana-2/api",
      editOfficialUrl: "https://fal.ai/models/fal-ai/nano-banana-2/edit/api",
      requiredFields: ["prompt"],
      optionalFields: [
        "num_images",
        "aspect_ratio",
        "output_format",
        "safety_tolerance",
        "resolution",
        "limit_generations",
        "enable_web_search",
        "image_urls",
      ],
      supportsMultiImageReference: true,
      autoRouteEditEndpoint: true,
    },
    defaultParams: {
      provider: "fal",
      endpoint: FAL_NANO_BANANA_2_MODEL_ID,
      editEndpoint: FAL_NANO_BANANA_2_EDIT_MODEL_ID,
      apiFormat: "fal-nano-banana-2",
      imageSize: "1K",
      aspectRatio: "auto",
      outputFormat: "png",
      safetyTolerance: "4",
      limitGenerations: true,
    },
    imageGenConfig: {
      maxImages: 4,
      supportsSize: true,
      supports1K: true,
      supports2K: true,
      supports4K: true,
      supportsPromptExtend: true,
      supportsNegativePrompt: false,
      supportsWatermark: false,
      supportsSeed: true,
      supportedAspectRatios: [
        "auto",
        "21:9",
        "16:9",
        "3:2",
        "4:3",
        "5:4",
        "1:1",
        "4:5",
        "3:4",
        "2:3",
        "9:16",
        "4:1",
        "1:4",
        "8:1",
        "1:8",
      ],
      supportedImageSizes: ["0.5K", "1K", "2K", "4K"],
      enableLoadingPlaceholder: true,
      loadingColor: "purple",
      creditCostPerImage: 0,
      creditCostPerVideo: 0,
    },
    sortOrder: 10,
  },
  {
    modelId: FAL_NANO_BANANA_2_EDIT_MODEL_ID,
    displayName: "FAL Nano Banana 2 Edit",
    description:
      "FAL 官方 Nano Banana 2 图像编辑模型，支持最多 14 张参考图和自然语言编辑。",
    supportsVision: true,
    supportsImageGen: true,
    capabilities: {
      provider: "fal",
      kind: "image-edit",
      endpoint: FAL_NANO_BANANA_2_EDIT_MODEL_ID,
      apiFormat: "fal-nano-banana-2-edit",
      officialUrl: "https://fal.ai/models/fal-ai/nano-banana-2/edit/api",
      requiredFields: ["prompt", "image_urls"],
      optionalFields: [
        "num_images",
        "aspect_ratio",
        "output_format",
        "safety_tolerance",
        "resolution",
        "limit_generations",
        "enable_web_search",
      ],
      supportsMultiImageReference: true,
      maxReferenceImages: 14,
    },
    defaultParams: {
      provider: "fal",
      endpoint: FAL_NANO_BANANA_2_EDIT_MODEL_ID,
      apiFormat: "fal-nano-banana-2-edit",
      imageSize: "1K",
      aspectRatio: "auto",
      outputFormat: "png",
      safetyTolerance: "4",
      limitGenerations: true,
    },
    imageGenConfig: {
      maxImages: 4,
      supportsSize: true,
      supports1K: true,
      supports2K: true,
      supports4K: true,
      supportsPromptExtend: true,
      supportsNegativePrompt: false,
      supportsWatermark: false,
      supportsSeed: true,
      supportedAspectRatios: [
        "auto",
        "21:9",
        "16:9",
        "3:2",
        "4:3",
        "5:4",
        "1:1",
        "4:5",
        "3:4",
        "2:3",
        "9:16",
        "4:1",
        "1:4",
        "8:1",
        "1:8",
      ],
      supportedImageSizes: ["0.5K", "1K", "2K", "4K"],
      enableLoadingPlaceholder: true,
      loadingColor: "purple",
      creditCostPerImage: 0,
      creditCostPerVideo: 0,
    },
    sortOrder: 11,
  },
  {
    modelId: FAL_GPT_IMAGE_2_EDIT_MODEL_ID,
    displayName: "FAL GPT Image 2 Edit",
    description:
      "FAL 托管的 OpenAI GPT Image 2 图片编辑模型，需至少一张参考图，支持多图参考、自然语言编辑与可选蒙版。",
    supportsVision: true,
    supportsImageGen: true,
    capabilities: {
      provider: "fal",
      kind: "image-edit",
      endpoint: FAL_GPT_IMAGE_2_EDIT_MODEL_ID,
      apiFormat: "fal-gpt-image-2-edit",
      officialUrl: "https://fal.ai/models/openai/gpt-image-2/edit",
      requiredFields: ["prompt", "image_urls"],
      optionalFields: [
        "image_size",
        "quality",
        "num_images",
        "output_format",
        "mask_url",
        "openai_api_key",
      ],
      supportsMultiImageReference: true,
      supportsMask: true,
      supportsStreaming: true,
    },
    defaultParams: {
      provider: "fal",
      endpoint: FAL_GPT_IMAGE_2_EDIT_MODEL_ID,
      apiFormat: "fal-gpt-image-2-edit",
      imageSize: "auto",
      quality: "high",
      outputFormat: "png",
    },
    imageGenConfig: {
      maxImages: 4,
      supportsSize: true,
      supports1K: true,
      supports2K: true,
      supports4K: true,
      supportsPromptExtend: true,
      supportsNegativePrompt: false,
      supportsWatermark: false,
      supportsSeed: false,
      supportedImageSizes: [
        "auto",
        "square_hd",
        "square",
        "landscape_4_3",
        "landscape_16_9",
        "portrait_4_3",
        "portrait_16_9",
      ],
      supportedQualities: ["low", "medium", "high"],
      enableLoadingPlaceholder: true,
      loadingColor: "purple",
      creditCostPerImage: 0,
      creditCostPerVideo: 0,
    },
    sortOrder: 20,
  },
];