import fs from "node:fs" ;
import path from "node:path" ;
import { resolveOpenClawAgentDir } from "../agents/agent-paths.js" ;
import { modelKey, normalizeModelRef, normalizeProviderId } from "../agents/model-selection.js" ;
import type { NormalizedUsage } from "../agents/usage.js" ;
import type { ModelProviderConfig } from "../config/types.models.js" ;
import type { OpenClawConfig } from "../config/types.openclaw.js" ;
import { getCachedGatewayModelPricing } from "../gateway/model-pricing-cache.js" ;
import { normalizeOptionalString } from "../shared/string-coerce.js" ;
/**
* A single tier in a tiered - pricing schedule . Prices are expressed as
* USD per - million tokens , just like the flat ` ModelCostConfig ` fields .
*
* ` range ` is a half - open interval ` [ start , end ) ` expressed in * input *
* token counts . The tiers MUST be sorted in ascending ` range [ 0 ] ` order
* with no gaps .
*/
export type PricingTier = {
input: number;
output: number;
cacheRead: number;
cacheWrite: number;
/** [startTokens, endTokens) — half-open interval on the input token axis. */
range: [number, number];
};
type RawPricingTier = {
input: number;
output: number;
cacheRead: number;
cacheWrite: number;
range: [number, number] | [number];
};
export type ModelCostConfig = {
input: number;
output: number;
cacheRead: number;
cacheWrite: number;
/** Optional tiered pricing tiers. When present, `estimateUsageCost`
* uses them instead of the flat rates above . The flat rates still
* serve as the " default / first - tier " fallback for callers that are
* unaware of tiered pricing. */
tieredPricing?: PricingTier[];
};
export type UsageTotals = {
input?: number;
output?: number;
cacheRead?: number;
cacheWrite?: number;
total?: number;
};
type ModelsJsonCostCache = {
path: string;
mtimeMs: number;
providers: Record<string, ModelProviderConfig> | undefined;
normalizedEntries: Map<string, ModelCostConfig> | null ;
rawEntries: Map<string, ModelCostConfig> | null ;
};
let modelsJsonCostCache: ModelsJsonCostCache | null = null ;
export function formatTokenCount(value?: number): string {
if (value === undefined || !Number.isFinite(value)) {
return "0" ;
}
const safe = Math.max(0 , value);
if (safe >= 1 _000 _000 ) {
return `${(safe / 1 _000 _000 ).toFixed(1 )}m`;
}
if (safe >= 1 _000 ) {
const precision = safe >= 10 _000 ? 0 : 1 ;
const formattedThousands = (safe / 1 _000 ).toFixed(precision);
if (Number(formattedThousands) >= 1 _000 ) {
return `${(safe / 1 _000 _000 ).toFixed(1 )}m`;
}
return `${formattedThousands}k`;
}
return String(Math.round(safe));
}
export function formatUsd(value?: number): string | undefined {
if (value === undefined || !Number.isFinite(value)) {
return undefined;
}
if (value >= 1 ) {
return `$${value.toFixed(2 )}`;
}
if (value >= 0 .01 ) {
return `$${value.toFixed(2 )}`;
}
return `$${value.toFixed(4 )}`;
}
function toResolvedModelKey(params: {
provider?: string;
model?: string;
allowPluginNormalization?: boolean ;
}): string | null {
const provider = normalizeOptionalString(params.provider);
const model = normalizeOptionalString(params.model);
if (!provider || !model) {
return null ;
}
const normalized = normalizeModelRef(provider, model, {
allowPluginNormalization: params.allowPluginNormalization,
});
return modelKey(normalized.provider, normalized.model);
}
function toDirectModelKey(params: { provider?: string; model?: string }): string | null {
const provider = normalizeProviderId(normalizeOptionalString(params.provider) ?? "" );
const model = normalizeOptionalString(params.model);
if (!provider || !model) {
return null ;
}
return modelKey(provider, model);
}
function shouldUseNormalizedCostLookup(params: { provider?: string; model?: string }): boolean {
const provider = normalizeProviderId(normalizeOptionalString(params.provider) ?? "" );
const model = normalizeOptionalString(params.model) ?? "" ;
if (!provider || !model) {
return false ;
}
return provider === "anthropic" || provider === "openrouter" || provider === "vercel-ai-gateway" ;
}
/**
* Normalize a raw tieredPricing array from models . json / config .
* Supports open - ended ranges such as ` [ 128000 ] ` or ` [ 128000 , - 1 ] ` ,
* which are converted to ` [ 128000 , Infinity ] ` .
*/
function normalizeTieredPricing(raw: RawPricingTier[] | undefined): PricingTier[] | undefined {
if (!raw || raw.length === 0 ) {
return undefined;
}
const result: PricingTier[] = [];
for (const tier of raw) {
const range = tier.range;
if (!Array.isArray(range) || range.length < 1 ) {
continue ;
}
const start = typeof range[0 ] === "number" ? range[0 ] : Number.NaN;
if (!Number.isFinite(start)) {
continue ;
}
const rawEnd = range.length >= 2 ? range[1 ] : null ;
const end =
typeof rawEnd === "number" && Number.isFinite(rawEnd) && rawEnd > start ? rawEnd : Infinity;
if (
!Number.isFinite(tier.input) ||
!Number.isFinite(tier.output) ||
!Number.isFinite(tier.cacheRead) ||
!Number.isFinite(tier.cacheWrite)
) {
continue ;
}
result.push({
input: tier.input,
output: tier.output,
cacheRead: tier.cacheRead,
cacheWrite: tier.cacheWrite,
range: [start, end],
});
}
return result.length > 0 ? result.toSorted((a, b) => a.range[0 ] - b.range[0 ]) : undefined;
}
function buildProviderCostIndex(
providers: Record<string, ModelProviderConfig> | undefined,
options?: { allowPluginNormalization?: boolean },
): Map<string, ModelCostConfig> {
const entries = new Map<string, ModelCostConfig>();
if (!providers) {
return entries;
}
for (const [providerKey, providerConfig] of Object.entries(providers)) {
const normalizedProvider = normalizeProviderId(providerKey);
for (const model of providerConfig?.models ?? []) {
const normalized = normalizeModelRef(normalizedProvider, model.id, {
allowPluginNormalization: options?.allowPluginNormalization,
});
const cost = { ...model.cost };
const normalizedTiers = normalizeTieredPricing(cost.tieredPricing);
const costConfig: ModelCostConfig = {
input: cost.input,
output: cost.output,
cacheRead: cost.cacheRead,
cacheWrite: cost.cacheWrite,
...(normalizedTiers ? { tieredPricing: normalizedTiers } : {}),
};
entries.set(modelKey(normalized.provider, normalized.model), costConfig);
}
}
return entries;
}
function loadModelsJsonCostIndex(options?: {
allowPluginNormalization?: boolean ;
}): Map<string, ModelCostConfig> {
const useRawEntries = options?.allowPluginNormalization === false ;
const modelsPath = path.join(resolveOpenClawAgentDir(), "models.json" );
try {
const stat = fs.statSync(modelsPath);
if (
!modelsJsonCostCache ||
modelsJsonCostCache.path !== modelsPath ||
modelsJsonCostCache.mtimeMs !== stat.mtimeMs
) {
const parsed = JSON.parse(fs.readFileSync(modelsPath, "utf8" )) as {
providers?: Record<string, ModelProviderConfig>;
};
modelsJsonCostCache = {
path: modelsPath,
mtimeMs: stat.mtimeMs,
providers: parsed.providers,
normalizedEntries: null ,
rawEntries: null ,
};
}
if (useRawEntries) {
modelsJsonCostCache.rawEntries ??= buildProviderCostIndex(modelsJsonCostCache.providers, {
allowPluginNormalization: false ,
});
return modelsJsonCostCache.rawEntries;
}
modelsJsonCostCache.normalizedEntries ??= buildProviderCostIndex(modelsJsonCostCache.providers);
return modelsJsonCostCache.normalizedEntries;
} catch {
const empty = new Map<string, ModelCostConfig>();
modelsJsonCostCache = {
path: modelsPath,
mtimeMs: -1 ,
providers: undefined,
normalizedEntries: empty,
rawEntries: empty,
};
return empty;
}
}
function findConfiguredProviderCost(params: {
provider?: string;
model?: string;
config?: OpenClawConfig;
allowPluginNormalization?: boolean ;
}): ModelCostConfig | undefined {
const key = toResolvedModelKey(params);
if (!key) {
return undefined;
}
return buildProviderCostIndex(params.config?.models?.providers, {
allowPluginNormalization: params.allowPluginNormalization,
}).get(key);
}
export function resolveModelCostConfig(params: {
provider?: string;
model?: string;
config?: OpenClawConfig;
allowPluginNormalization?: boolean ;
}): ModelCostConfig | undefined {
const rawKey = toDirectModelKey(params);
if (!rawKey) {
return undefined;
}
// Favor direct configured keys first so local pricing/status lookups stay
// synchronous and do not drag plugin/provider discovery into the hot path.
const rawModelsJsonCost = loadModelsJsonCostIndex({
allowPluginNormalization: false ,
}).get(rawKey);
if (rawModelsJsonCost) {
return rawModelsJsonCost;
}
const rawConfiguredCost = findConfiguredProviderCost({
...params,
allowPluginNormalization: false ,
});
if (rawConfiguredCost) {
return rawConfiguredCost;
}
if (params.allowPluginNormalization === false ) {
return undefined;
}
if (shouldUseNormalizedCostLookup(params)) {
const key = toResolvedModelKey(params);
if (key && key !== rawKey) {
const modelsJsonCost = loadModelsJsonCostIndex().get(key);
if (modelsJsonCost) {
return modelsJsonCost;
}
const configuredCost = findConfiguredProviderCost(params);
if (configuredCost) {
return configuredCost;
}
}
}
return getCachedGatewayModelPricing(params);
}
const toNumber = (value: number | undefined): number =>
typeof value === "number" && Number.isFinite(value) ? value : 0 ;
function selectPricingTier(tiers: PricingTier[], input: number): PricingTier | undefined {
const sortedTiers = tiers.toSorted((a, b) => a.range[0 ] - b.range[0 ]);
if (sortedTiers.length === 0 ) {
return undefined;
}
if (input <= 0 ) {
return sortedTiers[0 ];
}
for (const tier of sortedTiers) {
const [start, end] = tier.range;
if (input >= start && input < end) {
return tier;
}
}
for (let index = sortedTiers.length - 1 ; index >= 0 ; index -= 1 ) {
const tier = sortedTiers[index];
if (input >= tier.range[0 ]) {
return tier;
}
}
return sortedTiers[0 ];
}
function computeTieredCost(
tiers: PricingTier[],
input: number,
output: number,
cacheRead: number,
cacheWrite: number,
): number {
const tier = selectPricingTier(tiers, input);
if (!tier) {
return 0 ;
}
return (
input * tier.input +
output * tier.output +
cacheRead * tier.cacheRead +
cacheWrite * tier.cacheWrite
);
}
export function estimateUsageCost(params: {
usage?: NormalizedUsage | UsageTotals | null ;
cost?: ModelCostConfig;
}): number | undefined {
const usage = params.usage;
const cost = params.cost;
if (!usage || !cost) {
return undefined;
}
const input = toNumber(usage.input);
const output = toNumber(usage.output);
const cacheRead = toNumber(usage.cacheRead);
const cacheWrite = toNumber(usage.cacheWrite);
let total: number;
if (cost.tieredPricing && cost.tieredPricing.length > 0 ) {
total = computeTieredCost(cost.tieredPricing, input, output, cacheRead, cacheWrite);
} else {
total =
input * cost.input +
output * cost.output +
cacheRead * cost.cacheRead +
cacheWrite * cost.cacheWrite;
}
if (!Number.isFinite(total)) {
return undefined;
}
return total / 1 _000 _000 ;
}
export function __resetUsageFormatCachesForTest(): void {
modelsJsonCostCache = null ;
}
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