/**
 * Type-safe OpenRouter extensions for the OpenAI SDK.
 *
 * OpenRouter extends the standard chat completion API with fields like `provider`
 * and `reasoning` that the official OpenAI types don't include. This module provides
 * augmented types to avoid `as any` casts across the codebase.
 */
import type OpenAI from 'openai';
import type { ChatCompletionCreateParamsNonStreaming } from 'openai/resources/chat/completions';
/** OpenRouter provider routing preferences. */
export interface OpenRouterProvider {
    /** Zero Data Retention mode. */
    zdr?: boolean;
    /** Allow fallback providers. */
    allow_fallbacks?: boolean;
    /** Required providers (whitelist). */
    require_parameters?: boolean;
    /** Provider order preference. */
    order?: string[];
    /** Quantization preference. */
    quantizations?: string[];
    /** Additional provider preferences (model-specific). */
    [key: string]: unknown;
}
/** OpenRouter reasoning configuration for extended thinking models. */
export interface OpenRouterReasoning {
    effort: 'none' | 'low' | 'medium' | 'high' | 'xhigh';
}
/** Chat completion params extended with OpenRouter-specific fields. */
export type OpenRouterChatCompletionParams = ChatCompletionCreateParamsNonStreaming & {
    provider?: OpenRouterProvider;
    reasoning?: OpenRouterReasoning;
};
/**
 * Create a chat completion with OpenRouter-specific fields.
 * Wraps `client.chat.completions.create()` with proper typing.
 */
export declare function createOpenRouterCompletion(client: OpenAI, params: OpenRouterChatCompletionParams, options?: {
    signal?: AbortSignal;
}): Promise<OpenAI.Chat.Completions.ChatCompletion>;