Use Provider-Specific Video Options

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const response = await fetch("https://openrouter.ai/api/v1/videos/models");
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if (!response.ok) {
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  throw new Error(await response.text());
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}
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const { data } = await response.json();
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const models = data;
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const veo = models.find(
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  (model) => model.id === "google/veo-3.1-lite",
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);
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if (!veo) {
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  throw new Error("google/veo-3.1-lite was not found in the video model list.");
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}
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console.log(veo.allowed_passthrough_parameters);

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const providerParameters = {
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  negativePrompt: "blurry, low quality, distorted petals",
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  enhancePrompt: true,
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};
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const unsupportedParameters = Object.keys(providerParameters).filter(
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  (key) => !veo.allowed_passthrough_parameters?.includes(key),
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);
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if (unsupportedParameters.length > 0) {
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  throw new Error(
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    `Unsupported passthrough parameters: ${unsupportedParameters.join(", ")}`,
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  );
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}
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console.log("All provider parameters are supported.");

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const apiKey = process.env.OPENROUTER_API_KEY;
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if (!apiKey) {
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  throw new Error("Set OPENROUTER_API_KEY before submitting a video job.");
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}
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const response = await fetch("https://openrouter.ai/api/v1/videos", {
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  method: "POST",
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  headers: {
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    Authorization: `Bearer ${apiKey}`,
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    "Content-Type": "application/json",
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  },
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  body: JSON.stringify({
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    model: "google/veo-3.1-lite",
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    prompt:
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      "A 4-second time-lapse of a white orchid blooming on a dark tabletop, macro lens, gentle studio light",
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    duration: 4,
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    resolution: "720p",
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    aspect_ratio: "16:9",
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    generate_audio: false,
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    provider: {
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      options: {
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        "google-vertex": {
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          parameters: providerParameters,
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        },
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      },
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    },
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  }),
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});
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if (!response.ok) {
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  throw new Error(await response.text());
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}
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console.log(await response.json());

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const baseRequest = {
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  prompt: "A short cinematic product shot of a white orchid blooming",
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  duration: 4,
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  resolution: "720p",
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  aspect_ratio: "16:9",
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};
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const selectedModel = {
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  id: "google/veo-3.1-lite",
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};
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const requestBody =
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  selectedModel.id === "google/veo-3.1-lite"
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    ? {
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        ...baseRequest,
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        model: selectedModel.id,
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        provider: {
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          options: {
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            "google-vertex": {
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              parameters: {
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                negativePrompt: "blurry, low quality",
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              },
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            },
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          },
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        },
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      }
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    : {
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        ...baseRequest,
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        model: selectedModel.id,
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      };