export type Complexity = 'low' | 'medium' | 'high' | 'multimodal';
export type ModelTier = 'cheap' | 'standard' | 'smart' | 'multimodal';
export type ModelId = 'claude-haiku-4-5' | 'claude-sonnet-4-6' | 'claude-opus-4-7' | 'gpt-4o-mini' | 'gpt-4o' | 'o1' | 'deepseek-chat' | 'kimi-k2' | 'qwen-max' | 'doubao-pro-256k';
export interface ModelSpec {
    id: ModelId;
    provider: 'anthropic' | 'openai' | 'deepseek' | 'kimi' | 'qwen' | 'doubao';
    tier: ModelTier;
    /** 估算价格 USD per 1M token (input avg) */
    price_per_1m_input: number;
    /** 估算价格 USD per 1M token (output avg) */
    price_per_1m_output: number;
    /** 是否支持多模态 (image input) */
    multimodal: boolean;
    /** 上下文窗口 (tokens) */
    context_window: number;
}
export interface RouteRequest {
    /** 用户原 prompt 或 messages 拼接后的总 token 估算 */
    estimated_input_tokens: number;
    /** Hint: 用户对场景的标签 (e.g. "coding", "writing", "search") */
    hint?: string;
    /** 是否含图片 */
    has_image?: boolean;
    /** 用户偏好 — 强制 cheap / smart 等 */
    prefer_tier?: ModelTier;
    /** 排除的 provider (e.g. 国内用户排除 anthropic) */
    exclude_providers?: Array<ModelSpec['provider']>;
}
export interface RouteDecision {
    model_id: ModelId;
    reason: string;
    complexity: Complexity;
    estimated_cost_usd: number;
    alternatives: ModelId[];
}
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