/**
 * Fallback model pricing for cost estimation.
 *
 * When openclaw's `estimateUsageCost()` returns undefined (because the user
 * hasn't configured model pricing in openclaw.json), this module provides
 * well-known pricing for popular models so cost dashboard panels still work.
 *
 * Pricing: USD per 1M tokens — matches openclaw's ModelCostConfig shape.
 * Returns undefined for unknown models (no guessing).
 */
type ModelCost = {
    input: number;
    output: number;
    cacheRead: number;
    cacheWrite: number;
};
type TokenUsage = {
    input?: number;
    output?: number;
    cacheRead?: number;
    cacheWrite?: number;
};
/**
 * Estimate cost when openclaw's pricing config is missing.
 * Formula matches openclaw's estimateUsageCost():
 *   (input × inputCost + output × outputCost + cacheRead × cacheReadCost + cacheWrite × cacheWriteCost) / 1_000_000
 *
 * Returns undefined for unknown provider/model combos.
 */
/**
 * Resolve model pricing from openclaw's config — the same config that
 * openclaw's own `resolveModelCostConfig()` reads. This covers ALL
 * user-configured models, not just the 6 hardcoded Anthropic ones.
 *
 * Config path: `config.models.providers[provider].models[{id: model}].cost`
 *
 * Returns undefined if the provider/model isn't configured or has no cost entry.
 */
export declare function resolveModelCostFromConfig(config: Record<string, unknown>, provider?: string, model?: string): ModelCost | undefined;
/**
 * Estimate cost from a resolved ModelCost and token usage.
 * Same formula as openclaw's estimateUsageCost():
 *   (input × inputCost + output × outputCost + ...) / 1_000_000
 */
export declare function estimateUsageCost(pricing: ModelCost, usage?: TokenUsage): number | undefined;
export declare function estimateCostFallback(provider?: string, model?: string, usage?: TokenUsage): number | undefined;
export {};