/**
 * OpenAI adapter for LLM integration
 *
 * Supports all OpenAI models including GPT-5, o3, and GPT-4.1 families.
 *
 * @packageDocumentation
 */
import type { LLMProvider, OpenAIConfig, CompletionRequest, CompletionResponse } from '../../types/llm.js';
import { BaseLLMAdapter } from './base.js';
/**
 * GPT-5 Models (Latest - 2025)
 * - gpt-5: Flagship model for general-purpose and agentic use
 * - gpt-5-mini: Smaller, faster version
 * - gpt-5-nano: Smallest, most cost-effective
 */
export declare const GPT_5_MODELS: {
    readonly 'gpt-5': "gpt-5";
    readonly 'gpt-5-mini': "gpt-5-mini";
    readonly 'gpt-5-nano': "gpt-5-nano";
};
/**
 * o-Series Reasoning Models (Latest - 2025)
 * - o3: Most powerful reasoning model
 * - o3-pro: Extended thinking for complex tasks
 * - o4-mini: Fast, cost-efficient reasoning
 */
export declare const O_SERIES_MODELS: {
    readonly o3: "o3";
    readonly 'o3-pro': "o3-pro";
    readonly 'o4-mini': "o4-mini";
    readonly o1: "o1";
};
/**
 * GPT-4.1 Models (2025)
 * - Major gains in coding and instruction following
 * - Up to 1M token context
 */
export declare const GPT_4_1_MODELS: {
    readonly 'gpt-4.1': "gpt-4.1";
    readonly 'gpt-4.1-mini': "gpt-4.1-mini";
    readonly 'gpt-4.1-nano': "gpt-4.1-nano";
};
/**
 * GPT-4o Models (2024-2025)
 * - Optimized for speed and multimodal
 */
export declare const GPT_4O_MODELS: {
    readonly 'gpt-4o': "gpt-4o";
    readonly 'gpt-4o-mini': "gpt-4o-mini";
};
/**
 * Legacy GPT-4 Models
 */
export declare const GPT_4_LEGACY_MODELS: {
    readonly 'gpt-4-turbo': "gpt-4-turbo";
    readonly 'gpt-4': "gpt-4";
};
/**
 * All available OpenAI models
 */
export declare const OPENAI_MODELS: {
    readonly 'gpt-4-turbo': "gpt-4-turbo";
    readonly 'gpt-4': "gpt-4";
    readonly 'gpt-4o': "gpt-4o";
    readonly 'gpt-4o-mini': "gpt-4o-mini";
    readonly 'gpt-4.1': "gpt-4.1";
    readonly 'gpt-4.1-mini': "gpt-4.1-mini";
    readonly 'gpt-4.1-nano': "gpt-4.1-nano";
    readonly o3: "o3";
    readonly 'o3-pro': "o3-pro";
    readonly 'o4-mini': "o4-mini";
    readonly o1: "o1";
    readonly 'gpt-5': "gpt-5";
    readonly 'gpt-5-mini': "gpt-5-mini";
    readonly 'gpt-5-nano': "gpt-5-nano";
};
/**
 * Model alias type for convenient model selection
 */
export type OpenAIModelAlias = keyof typeof OPENAI_MODELS;
/**
 * Resolve a model alias or ID to the full model ID
 */
export declare function resolveOpenAIModel(modelOrAlias: string): string;
/**
 * OpenAI adapter for chat completions
 */
export declare class OpenAIAdapter extends BaseLLMAdapter {
    private readonly baseUrl;
    private readonly organization?;
    constructor(config: OpenAIConfig);
    get provider(): LLMProvider;
    complete(request: CompletionRequest): Promise<CompletionResponse>;
}
/**
 * Create an OpenAI adapter from environment variables
 *
 * @param model - Model ID or alias (e.g., 'gpt-5', 'o3', 'gpt-4.1', 'gpt-4o')
 *                Use aliases for convenience or full model IDs for specific versions.
 *                Any valid OpenAI model ID will work - not limited to the aliases.
 *
 * @example
 * ```typescript
 * // Using current flagship model
 * const adapter = createOpenAIAdapter('gpt-5');
 *
 * // Using reasoning model for complex tasks
 * const adapter = createOpenAIAdapter('o3');
 *
 * // Using fast, cost-effective reasoning
 * const adapter = createOpenAIAdapter('o4-mini');
 *
 * // Using a future model (when released)
 * const adapter = createOpenAIAdapter('gpt-6');
 * ```
 */
export declare function createOpenAIAdapter(model?: OpenAIModelAlias | string, overrides?: Partial<OpenAIConfig>): OpenAIAdapter;
/**
 * List all available OpenAI model aliases
 */
export declare function listOpenAIModels(): {
    alias: string;
    modelId: string;
}[];
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