export { A as AIStream } from '../AIStream-BwgeGI-N.js';
import { T as TokenCount } from '../common.d-iR60eBef.js';
import { M as Message } from '../streaming.d-Cj-pZLSI.js';
import 'events';

/**
 * Count tokens in text (approximation)
 * For production use, integrate with tiktoken
 */
declare function countTokens(text: string): TokenCount;
/**
 * Count tokens in a message
 */
declare function countMessageTokens(message: Message): TokenCount;
/**
 * Count tokens in an array of messages
 */
declare function countMessagesTokens(messages: Message[]): TokenCount;
/**
 * Pricing per model (per 1K tokens)
 */
declare const MODEL_PRICING: {
    readonly 'gpt-4': {
        readonly input: 0.03;
        readonly output: 0.06;
    };
    readonly 'gpt-4-turbo': {
        readonly input: 0.01;
        readonly output: 0.03;
    };
    readonly 'gpt-3.5-turbo': {
        readonly input: 0.0005;
        readonly output: 0.0015;
    };
    readonly 'claude-3-opus': {
        readonly input: 0.015;
        readonly output: 0.075;
    };
    readonly 'claude-3-sonnet': {
        readonly input: 0.003;
        readonly output: 0.015;
    };
    readonly 'claude-3-haiku': {
        readonly input: 0.00025;
        readonly output: 0.00125;
    };
    readonly 'claude-sonnet-4': {
        readonly input: 0.003;
        readonly output: 0.015;
    };
    readonly 'llama-3-70b': {
        readonly input: 0.0008;
        readonly output: 0.0008;
    };
    readonly 'llama-3-8b': {
        readonly input: 0.0002;
        readonly output: 0.0002;
    };
};
type ModelName = keyof typeof MODEL_PRICING;
/**
 * Calculate cost based on token usage
 */
declare function calculateCost(promptTokens: number, completionTokens: number, model: ModelName): number;
/**
 * Estimate tokens for a request
 */
declare function estimateRequestTokens(messages: Message[], systemPrompt?: string): TokenCount;

export { MODEL_PRICING, type ModelName, TokenCount, calculateCost, countMessageTokens, countMessagesTokens, countTokens, estimateRequestTokens };