export declare const OPENAI_BASE_URL_ENV_VAR = "OPENAI_BASE_URL";
export declare const OPENAI_DEFAULT_BASE_URL = "https://api.openai.com/v1";
export declare const OLLAMA_BASE_URL_ENV_VAR = "OLLAMA_BASE_URL";
export declare const OLLAMA_DEFAULT_BASE_URL = "http://127.0.0.1:11434";
export declare const ANTHROPIC_API_ORIGIN = "https://api.anthropic.com";
export declare const AI_SDK_ANTHROPIC_DEFAULT_BASE_URL = "https://api.anthropic.com/v1";
export declare function isCustomOpenAiBaseUrl(value: string | undefined): boolean;
export declare function normalizeProviderBaseUrl(value: string): string;
export declare function normalizeOpenAiBaseUrl(value: string): string;
export declare function stripOllamaV1Suffix(value: string): string;