Flowise/packages/components/nodes/chatmodels/ChatOpenRouter/FlowiseChatOpenRouter.ts

import { ChatOpenAI as LangchainChatOpenAI, ChatOpenAIFields } from '@langchain/openai'
import { IMultiModalOption, IVisionChatModal } from '../../../src'

export class ChatOpenRouter extends LangchainChatOpenAI implements IVisionChatModal {
    configuredModel: string
    configuredMaxToken?: number
    multiModalOption: IMultiModalOption
    id: string

    constructor(id: string, fields?: ChatOpenAIFields) {
        super(fields)
        this.id = id
        this.configuredModel = fields?.modelName ?? ''
        this.configuredMaxToken = fields?.maxTokens
    }

    revertToOriginalModel(): void {
        this.model = this.configuredModel
        this.maxTokens = this.configuredMaxToken
    }

    setMultiModalOption(multiModalOption: IMultiModalOption): void {
        this.multiModalOption = multiModalOption
    }

    setVisionModel(): void {
        // pass - OpenRouter models don't need model switching
    }
}