diff --git a/app/credits/page.tsx b/app/credits/page.tsx
index 80fca88..571bf3e 100644
--- a/app/credits/page.tsx
+++ b/app/credits/page.tsx
@@ -54,7 +54,8 @@ export default async function Page(props: Props) {
             </Heading>
 
             <Text color="gray" size="2">
-              You currently have <Text weight="medium">{credits}</Text> credits.
+              You currently have{' '}
+              <Text weight="medium">{credits.ai_credit}</Text> credits.
             </Text>
           </Flex>
 
diff --git a/components/episode-ai-summary/episode-ai-summary.tsx b/components/episode-ai-summary/episode-ai-summary.tsx
index e8c7136..0437f60 100644
--- a/components/episode-ai-summary/episode-ai-summary.tsx
+++ b/components/episode-ai-summary/episode-ai-summary.tsx
@@ -3,7 +3,7 @@ import type { Tables } from '@/types/supabase/database';
 import { DatabaseError } from '@/lib/errors';
 import { fetchAccountAICredits } from '@/lib/services/account';
 import { createSupabaseServerClient } from '@/lib/services/supabase/server';
-import { Button, Flex } from '@radix-ui/themes';
+import { Button, CalloutRoot, CalloutText, Flex } from '@radix-ui/themes';
 import { cookies } from 'next/headers';
 import Link from 'next/link';
 import { CgDollar } from 'react-icons/cg';
@@ -30,7 +30,20 @@ export async function EpisodeAISummary(props: Props) {
   }
 
   if (data.length === 0 || data[0].text_summary === null) {
-    if (credits < 1) {
+    if (credits.ai_credit_remaining_usage < 1) {
+      return (
+        <EpisodeAISummaryPlaceholder>
+          <CalloutRoot color="amber" size="1">
+            <CalloutText>
+              You have used all your spendable credits. Thanks for using
+              beecast!
+            </CalloutText>
+          </CalloutRoot>
+        </EpisodeAISummaryPlaceholder>
+      );
+    }
+
+    if (credits.ai_credit < 1) {
       return (
         <EpisodeAISummaryPlaceholder>
           <Button asChild highContrast>
diff --git a/lib/services/account.ts b/lib/services/account.ts
index 9c872d7..0319104 100644
--- a/lib/services/account.ts
+++ b/lib/services/account.ts
@@ -5,7 +5,6 @@ import type { Session, User } from '@supabase/supabase-js';
 import { DatabaseError } from '@/lib/errors';
 import { differenceInMinutes } from 'date-fns';
 import { cookies } from 'next/headers';
-import { z } from 'zod';
 
 import { notifySlack } from './notify/slack';
 import { getUser } from './supabase/auth';
@@ -98,45 +97,57 @@ export const fetchAccount = async () => {
 export const fetchAccountAICredits = async () => {
   const supabase = createSupabaseServerClient(cookies());
 
-  const accountQuery = await supabase
+  const { data, error } = await supabase
     .from('account')
-    .select('ai_credit')
+    .select('ai_credit, ai_credit_remaining_usage')
     .eq('user_id', (await getUser()).id)
     .single();
 
-  if (accountQuery.error) {
-    throw new DatabaseError(accountQuery.error);
+  if (error) {
+    throw new DatabaseError(error);
   }
 
-  return accountQuery.data.ai_credit;
+  return data;
 };
 
-export const validateAccountAICredits = async () => {
-  const aiCredits = await fetchAccountAICredits();
+export const decrementAccountAICredits = async () => {
+  const supabase = createSupabaseServerClient(cookies());
+  const credits = await fetchAccountAICredits();
 
-  const accountCreditsSchema = z.number().int().positive();
-  const validatedCredits = accountCreditsSchema.safeParse(aiCredits);
+  const { data, error } = await supabase
+    .from('account')
+    .update({
+      ai_credit: credits.ai_credit - 1,
+      ai_credit_remaining_usage: credits.ai_credit_remaining_usage - 1,
+    })
+    .eq('user_id', (await getUser()).id)
+    .select('ai_credit, ai_credit_remaining_usage')
+    .single();
 
-  if (!validatedCredits.success) {
-    throw validatedCredits.error;
+  if (error) {
+    throw new DatabaseError(error);
   }
 
-  return validatedCredits.data;
+  return data;
 };
 
-export const updateAccountAICredits = async (amount: number) => {
+export const incrementAccountAICredits = async () => {
   const supabase = createSupabaseServerClient(cookies());
+  const credits = await fetchAccountAICredits();
 
-  const accountQuery = await supabase
+  const { data, error } = await supabase
     .from('account')
-    .update({ ai_credit: amount })
+    .update({
+      ai_credit: credits.ai_credit + 1,
+      ai_credit_remaining_usage: credits.ai_credit_remaining_usage + 1,
+    })
     .eq('user_id', (await getUser()).id)
-    .select('ai_credit')
+    .select('ai_credit, ai_credit_remaining_usage')
     .single();
 
-  if (accountQuery.error) {
-    throw new DatabaseError(accountQuery.error);
+  if (error) {
+    throw new DatabaseError(error);
   }
 
-  return accountQuery.data.ai_credit;
+  return data;
 };
diff --git a/types/supabase/database.ts b/types/supabase/database.ts
index 28c3b1a..baa8bf8 100644
--- a/types/supabase/database.ts
+++ b/types/supabase/database.ts
@@ -12,6 +12,7 @@ export interface Database {
       account: {
         Row: {
           ai_credit: number;
+          ai_credit_remaining_usage: number;
           avatar_url: string | null;
           created_at: string;
           id: number;
@@ -22,6 +23,7 @@ export interface Database {
         };
         Insert: {
           ai_credit?: number;
+          ai_credit_remaining_usage?: number;
           avatar_url?: string | null;
           created_at?: string;
           id?: number;
@@ -32,6 +34,7 @@ export interface Database {
         };
         Update: {
           ai_credit?: number;
+          ai_credit_remaining_usage?: number;
           avatar_url?: string | null;
           created_at?: string;
           id?: number;