/**
 * [WHO]: KNOWN_MODEL_METADATA, lookupKnownModel(), UNKNOWN_MODEL_DEFAULTS, KnownModelMetadata
 * [FROM]: Depends on @catui/ai/types for Api type; data from known-models.generated.ts
 * [TO]: Consumed by core/model-registry.ts for discovered model defaults
 * [HERE]: core/model/known-models.ts - known model metadata for discovery fallback
 *
 * Provides a lookup table of model metadata extracted from models.generated.ts at build time.
 * When discovery finds a model ID from a remote /models endpoint, this table supplies
 * contextWindow, maxTokens, cost, etc. that the endpoint doesn't provide.
 */
import type { Api } from "@catui/ai/types";
/**
 * Lightweight metadata for a known model (no provider/baseUrl/runtime fields).
 */
export interface KnownModelMetadata {
    id: string;
    name: string;
    api: Api;
    contextWindow: number;
    maxTokens: number;
    reasoning: boolean;
    input: ("text" | "image")[];
    cost: {
        input: number;
        output: number;
        cacheRead: number;
        cacheWrite: number;
    };
}
/**
 * Map of model ID → known metadata.
 *
 * Populated at build time from models.generated.ts via scripts/generate-known-models.ts.
 * Multiple providers may share the same model ID (e.g., "gpt-4o" appears under both
 * "openai" and "openrouter"), so this map uses the bare model ID as key.
 */
export declare const KNOWN_MODEL_METADATA: Map<string, KnownModelMetadata>;
/**
 * Look up known metadata for a discovered model by ID.
 *
 * Resolution order:
 * 1. Exact match (e.g., "claude-sonnet-4-20250514")
 * 2. Strip date suffix (e.g., "claude-sonnet-4-20250514" → "claude-sonnet-4")
 * 3. Strip "-latest" suffix (e.g., "gemini-2.5-flash-latest" → "gemini-2.5-flash")
 * 4. Returns undefined if no match found
 */
export declare function lookupKnownModel(modelId: string): KnownModelMetadata | undefined;
/**
 * Conservative defaults for completely unknown discovered models.
 * Used when lookupKnownModel() returns undefined.
 *
 * Note: `api` is intentionally omitted — it should come from the provider config.
 */
export declare const UNKNOWN_MODEL_DEFAULTS: {
    readonly contextWindow: 128000;
    readonly maxTokens: 16384;
    readonly reasoning: false;
    readonly input: ("text" | "image")[];
    readonly cost: {
        readonly input: 0;
        readonly output: 0;
        readonly cacheRead: 0;
        readonly cacheWrite: 0;
    };
};