/**
 * Browser capability detection for AI features
 */
import type { BrowserAICapabilities } from '../core/types.js';
/**
 * Detect all browser AI capabilities
 * This is synchronous and cheap to call - no network requests
 */
export declare function detectCapabilities(): BrowserAICapabilities;
/**
 * Check if any STT capability is available
 */
export declare function hasSTT(caps: BrowserAICapabilities): boolean;
/**
 * Check if any TTS capability is available
 */
export declare function hasTTS(caps: BrowserAICapabilities): boolean;
/**
 * Check if any LLM capability is available
 */
export declare function hasLLM(caps: BrowserAICapabilities): boolean;
/**
 * Check if "smrt" mode can be enabled (at least one AI capability available)
 */
export declare function canEnableSmrtMode(caps: BrowserAICapabilities): boolean;
/**
 * Get the best available STT backend
 */
export declare function getBestSTTBackend(caps: BrowserAICapabilities): 'whisper-wasm' | 'browser-speech' | null;
/**
 * Get the best available TTS backend
 */
export declare function getBestTTSBackend(caps: BrowserAICapabilities): 'browser-synthesis' | 'transformers' | null;
/**
 * Get the best available LLM backend
 */
export declare function getBestLLMBackend(caps: BrowserAICapabilities): 'webllm' | 'transformers-llm' | null;
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