import type { Capabilities, ModelsDevModel, Provider, Request, Response, StreamEvent } from '@wrongstack/core/types';
export interface OpenCodeZenProviderOptions {
    id?: string | undefined;
    apiKey: string;
    baseUrl: string;
    headers?: Record<string, string> | undefined;
    fetchImpl?: typeof fetch | undefined;
    models?: readonly ModelsDevModel[] | undefined;
}
/**
 * OpenCode Zen exposes model-dependent OpenAI transports under one key:
 * GPT-5 models use `/responses`; the remaining catalog uses
 * `/chat/completions`.
 */
export declare class OpenCodeZenProvider implements Provider {
    readonly id: string;
    readonly capabilities: Capabilities;
    private readonly chat;
    private readonly responses;
    constructor(opts: OpenCodeZenProviderOptions);
    stream(req: Request, opts: {
        signal: AbortSignal;
    }): AsyncIterable<StreamEvent>;
    complete(req: Request, opts: {
        signal: AbortSignal;
    }): Promise<Response>;
    private delegate;
}
export declare function usesResponsesEndpoint(model: string): boolean;
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