diff --git a/app/src/components/settings/panels/BillingPanel.tsx b/app/src/components/settings/panels/BillingPanel.tsx
index e42aa125824..3f52389cc48 100644
--- a/app/src/components/settings/panels/BillingPanel.tsx
+++ b/app/src/components/settings/panels/BillingPanel.tsx
@@ -410,7 +410,7 @@ const BillingPanel = () => {
                   7-day cycle budget: {formatUsdAmount(currentPlan.weeklyBudgetUsd)}
                 </span>
                 <span className="rounded-full border border-stone-200 bg-stone-50 px-2 py-1 text-[10px] text-stone-600">
-                  5-hour cap: {formatUsdAmount(currentPlan.fiveHourCapUsd)}
+                  10-hour cap: {formatUsdAmount(currentPlan.fiveHourCapUsd)}
                 </span>
                 {currentPlanMeta && (
                   <>
diff --git a/app/src/components/settings/panels/billing/InferenceBudget.tsx b/app/src/components/settings/panels/billing/InferenceBudget.tsx
index 6c8006ef66d..6026d622e56 100644
--- a/app/src/components/settings/panels/billing/InferenceBudget.tsx
+++ b/app/src/components/settings/panels/billing/InferenceBudget.tsx
@@ -46,7 +46,7 @@ const InferenceBudget = ({ teamUsage, isLoadingCredits }: InferenceBudgetProps)
         </div>
         <div className="mt-1 flex items-center justify-between">
           <span className="text-[11px] text-stone-500">
-            5-hour cap: ${teamUsage.fiveHourSpendUsd.toFixed(2)} / $
+            10-hour cap: ${teamUsage.fiveHourSpendUsd.toFixed(2)} / $
             {teamUsage.fiveHourCapUsd.toFixed(2)}
           </span>
           <span className="text-[11px] text-stone-500">
diff --git a/app/src/components/settings/panels/billing/SubscriptionPlans.tsx b/app/src/components/settings/panels/billing/SubscriptionPlans.tsx
index 240b9a3468d..eb87f44afab 100644
--- a/app/src/components/settings/panels/billing/SubscriptionPlans.tsx
+++ b/app/src/components/settings/panels/billing/SubscriptionPlans.tsx
@@ -111,7 +111,7 @@ const SubscriptionPlans = ({
                     7-day cycle: {formatUsdAmount(plan.weeklyBudgetUsd)}
                   </span>
                   <span className="rounded-full border border-stone-200 bg-stone-50 px-2 py-1 text-[10px] text-stone-600">
-                    5-hour cap: {formatUsdAmount(plan.fiveHourCapUsd)}
+                    10-hour cap: {formatUsdAmount(plan.fiveHourCapUsd)}
                   </span>
                   <span className="rounded-full border border-stone-200 bg-stone-50 px-2 py-1 text-[10px] text-stone-600">
                     Discount: {plan.discountPercent}%
diff --git a/app/src/components/settings/panels/billingHelpers.ts b/app/src/components/settings/panels/billingHelpers.ts
index 6f1244e3286..55cf4117943 100644
--- a/app/src/components/settings/panels/billingHelpers.ts
+++ b/app/src/components/settings/panels/billingHelpers.ts
@@ -12,6 +12,7 @@ export interface PlanMeta {
   annualPrice: number;
   monthlyBudgetUsd: number;
   weeklyBudgetUsd: number;
+  /** USD cap per 10-hour rolling inference window; amount scales with `tier` (FREE / BASIC / PRO). */
   fiveHourCapUsd: number;
   discountPercent: number;
   storageLimitBytes: number;
diff --git a/app/src/pages/Conversations.tsx b/app/src/pages/Conversations.tsx
index 75c4258b6ce..219f8faba38 100644
--- a/app/src/pages/Conversations.tsx
+++ b/app/src/pages/Conversations.tsx
@@ -1170,7 +1170,7 @@ const Conversations = () => {
                   <p className="text-xs text-coral-600 truncate">
                     {teamUsage.remainingUsd <= 0
                       ? 'Weekly inference budget exhausted. Top up to continue.'
-                      : `5-hour rate limit reached.${teamUsage.fiveHourResetsAt ? ` Resets ${formatResetTime(teamUsage.fiveHourResetsAt)}.` : ''}`}
+                      : `10-hour rate limit reached.${teamUsage.fiveHourResetsAt ? ` Resets ${formatResetTime(teamUsage.fiveHourResetsAt)}.` : ''}`}
                   </p>
                 </div>
                 {teamUsage.remainingUsd <= 0 && (
@@ -1189,7 +1189,7 @@ const Conversations = () => {
                 {teamUsage ? (
                   <div className="flex items-center gap-2">
                     <LimitPill
-                      label="5h"
+                      label="10h"
                       usedPct={
                         teamUsage.fiveHourCapUsd > 0
                           ? Math.min(1, teamUsage.fiveHourSpendUsd / teamUsage.fiveHourCapUsd)
@@ -1216,7 +1216,7 @@ const Conversations = () => {
                   <div className="absolute bottom-full right-0 mb-2 hidden group-hover:block z-50">
                     <div className="bg-stone-900 text-white text-[10px] rounded-lg px-3 py-2 shadow-lg whitespace-nowrap space-y-1.5">
                       <div className="flex items-center justify-between gap-4">
-                        <span className="text-stone-400">5-hour limit</span>
+                        <span className="text-stone-400">10-hour limit</span>
                         <span>
                           ${teamUsage.fiveHourSpendUsd.toFixed(2)} / $
                           {teamUsage.fiveHourCapUsd.toFixed(2)}
diff --git a/app/src/services/api/creditsApi.ts b/app/src/services/api/creditsApi.ts
index 78ed8856b13..898f13ce6e9 100644
--- a/app/src/services/api/creditsApi.ts
+++ b/app/src/services/api/creditsApi.ts
@@ -12,11 +12,17 @@ export interface TeamUsage {
   dailyUsage: number;
   totalInputTokensThisCycle: number;
   totalOutputTokensThisCycle: number;
-  /** 5-hour rolling window: amount spent (USD) */
+  /**
+   * Rolling inference window: USD spent in the last 10 hours (server-enforced window).
+   * JSON field name is historical (`fiveHour*`).
+   */
   fiveHourSpendUsd: number;
-  /** 5-hour rolling window: cap for the user's plan (USD) */
+  /**
+   * Max USD allowed in that 10-hour rolling window for the current subscription tier
+   * (FREE / BASIC / PRO). Backend sets the amount; the window length is fixed server-side.
+   */
   fiveHourCapUsd: number;
-  /** ISO timestamp when the oldest 5-hour window entry expires (null if window is empty) */
+  /** ISO timestamp when the oldest rolling-window entry expires (null if window is empty) */
   fiveHourResetsAt: string | null;
   /** ISO timestamp when the current weekly cycle started */
   cycleStartDate: string;
diff --git a/app/src/types/api.ts b/app/src/types/api.ts
index 80f2ca20db1..d3a0b8f53e5 100644
--- a/app/src/types/api.ts
+++ b/app/src/types/api.ts
@@ -76,6 +76,7 @@ export interface CurrentPlanData {
   subscription: { id: string; status: string; currentPeriodEnd: string; quantity: number } | null;
   monthlyBudgetUsd: number;
   weeklyBudgetUsd: number;
+  /** Max USD per 10-hour rolling inference window for this plan tier (server field name: fiveHourCapUsd). */
   fiveHourCapUsd: number;
 }