export declare const PRICING_SOURCE = "https://www.anthropic.com/pricing#api";
export declare const OPUS_PRICE_DATE = "2026-07-25";
/** Default GBP conversion. USD amounts are divided by this to yield GBP. */
export declare const USD_PER_GBP = 1.34;
/** Sonnet 5 uses the same Opus-family tokenizer as Opus 5, so its token counts
 *  need no adjustment: the default factor is 1.0 (no scaling). The factor is
 *  kept as a config knob — an explicit value still scales counts before the
 *  Sonnet rate, for pricing an older tokenizer's volume if ever needed. */
export declare const SONNET_TOKENIZER_FACTOR = 1;
/** USD per 1,000,000 tokens. `cacheWrite5m` is the 5-minute cache-creation rate;
 *  session metering prices all `cache_creation_input_tokens` at this rate.
 *  Cache rates follow Anthropic's 1.25x (5m write) and 0.1x (read) multipliers. */
export declare const OPUS_5: {
    readonly input: 5;
    readonly cacheWrite5m: 6.25;
    readonly cacheRead: 0.5;
    readonly output: 25;
};
export declare const SONNET_5: {
    readonly input: 3;
    readonly cacheWrite5m: 3.75;
    readonly cacheRead: 0.3;
    readonly output: 15;
};
export declare const HAIKU_4_5: {
    readonly input: 1;
    readonly cacheWrite5m: 1.25;
    readonly cacheRead: 0.1;
    readonly output: 5;
};
/** A bundle of token counts for one day or one total. Cost inputs live here so
 *  pricing.ts has no dependency on the metering core (which imports this). */
export interface MeteringTokens {
    output: number;
    input: number;
    cacheWrite: number;
    cacheRead: number;
}
export interface PricingConfig {
    usdPerGbp: number;
    tokenizerFactor: number;
    priceDate: string;
}
export declare function defaultPricingConfig(): PricingConfig;
/** GBP cost of a token bundle at the Opus 5 rate (no tokenizer scaling). */
export declare function opusCostGBP(t: MeteringTokens, cfg: PricingConfig): number;
/** GBP cost at the Sonnet 5 rate with every token count scaled by the
 *  tokenizer factor (1.0 by default = no scaling). */
export declare function sonnetCostGBP(t: MeteringTokens, cfg: PricingConfig): number;
/** True when `priceDate` is more than 90 days before `nowIso`. Both are ISO
 *  date strings; comparison is in whole UTC days. */
export declare function pricingIsStale(cfg: PricingConfig, nowIso: string): boolean;
//# sourceMappingURL=pricing.d.ts.map