{"record":{"id":"8818dbfbf16c61b5","repo":"vercel/ai","slug":"the-gateway-provider-model-function-cannot-be-call","errorCode":null,"errorMessage":"The Gateway Provider model function cannot be called with the new keyword.","messagePattern":"The Gateway Provider model function cannot be called with the new keyword\\.","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"packages/gateway/src/gateway-provider.ts","lineNumber":502,"sourceCode":"\n  const getGenerationInfo = async (params: GatewayGenerationInfoParams) => {\n    return new GatewayGenerationInfoFetcher({\n      baseURL,\n      headers: getHeaders,\n      fetch: options.fetch,\n    })\n      .getGenerationInfo(params)\n      .catch(async (error: unknown) => {\n        throw await asGatewayError(\n          error,\n          await parseAuthMethod(await getHeaders()),\n        );\n      });\n  };\n\n  const provider = function (modelId: GatewayModelId) {\n    if (new.target) {\n      throw new Error(\n        'The Gateway Provider model function cannot be called with the new keyword.',\n      );\n    }\n\n    return createLanguageModel(modelId);\n  };\n\n  provider.specificationVersion = 'v4' as const;\n  provider.getAvailableModels = getAvailableModels;\n  provider.getCredits = getCredits;\n  provider.getSpendReport = getSpendReport;\n  provider.getGenerationInfo = getGenerationInfo;\n  provider.imageModel = (modelId: GatewayImageModelId) => {\n    return new GatewayImageModel(modelId, {\n      provider: 'gateway',\n      baseURL,\n      headers: getHeaders,\n      fetch: options.fetch,","sourceCodeStart":484,"sourceCodeEnd":520,"githubUrl":"https://github.com/vercel/ai/blob/69428b1f8b037e4d118fb4853428d5c4e620493c/packages/gateway/src/gateway-provider.ts#L484-L520","documentation":"Error \"The Gateway Provider model function cannot be called with the new keyword.\" thrown in vercel/ai.","triggerScenarios":"Thrown at packages/gateway/src/gateway-provider.ts:502 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"69428b1f8b037e4d118fb4853428d5c4e620493c","analyzedAt":"2026-08-30T12:32:21.016Z","schemaVersion":2},"datasetVersion":"2026-08-30T13:17:10.514Z"}