import { type SupportedModel } from '../utils/models.js';
export interface ChatRequest {
    prompt: string;
    model: SupportedModel;
    system?: string;
    temperature?: number;
    effort?: 'minimal' | 'low' | 'medium' | 'high';
    verbosity?: 'low' | 'medium' | 'high';
    searchContextSize?: 'low' | 'medium' | 'high';
    maxTokens?: number;
    maxRetries?: number;
    timeoutMs?: number;
    stream?: boolean;
}
export interface ChatResponse {
    content: string;
    model: string;
    usage?: {
        input_tokens: number;
        output_tokens: number;
    };
}
export interface StreamChunk {
    content: string;
    done: boolean;
}
export declare class ChatGPTClient {
    private openai;
    constructor(apiKey?: string);
    private createOpenAIClient;
    private validateRequest;
    chat(request: ChatRequest): Promise<ChatResponse>;
    chatStream(request: ChatRequest): AsyncGenerator<StreamChunk>;
    private callResponsesAPI;
    private streamResponsesAPI;
}