import type { ChatRequest, ChatResponse, LLMProvider, ProviderModelSource, ProviderRuntimeMetadata, ProviderRuntimeMetadataDeps } from './interface.js';
import type { SubscriptionManager } from '../config/subscriptions.js';
/**
 * Dated fallback model list for the ChatGPT/Codex subscription surface. This
 * backend (chatgpt.com/backend-api) has no public model-listing endpoint, so
 * unlike the direct OpenAI API key provider this is a dated-static list only
 *, docs-verified (no live subscription session was available in this
 * environment to cross-check) against developers.openai.com Codex model
 * pages on 2026-07-12; update this list (and the date below) whenever it is
 * re-verified.
 */
export declare const OPENAI_CODEX_DATED_STATIC_MODELS: readonly string[];
export declare const OPENAI_CODEX_DATED_STATIC_MODELS_AS_OF = "2026-07-12";
export declare function chatWithOpenAICodex(accessToken: string, params: ChatRequest): Promise<ChatResponse>;
export declare class OpenAICodexProvider implements LLMProvider {
    private readonly subscriptionManager;
    readonly name = "openai-subscriber";
    readonly credentialAuthority: "subscription";
    readonly modelSource: ProviderModelSource;
    readonly models: string[];
    constructor(subscriptionManager: Pick<SubscriptionManager, 'get' | 'saveSubscription' | 'resolveAccessToken'>);
    chat(params: ChatRequest): Promise<ChatResponse>;
    private subscriptionEndedError;
    describeRuntime(deps: ProviderRuntimeMetadataDeps): Promise<ProviderRuntimeMetadata>;
}
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