diff --git a/src/app/api/profile/usage/route.ts b/src/app/api/profile/usage/route.ts
index 10ec01d1b..c76272d89 100644
--- a/src/app/api/profile/usage/route.ts
+++ b/src/app/api/profile/usage/route.ts
@@ -27,7 +27,11 @@ export async function GET(request: NextRequest) {
   // Build the select object conditionally
   const selectFields = {
     date: sql<string>`DATE(${microdollar_usage.created_at})`,
-    ...(groupByModel && { model: microdollar_usage.model }),
+    ...(groupByModel && {
+      model: sql<
+        string | null
+      >`COALESCE(${microdollar_usage.requested_model}, ${microdollar_usage.model})`,
+    }),
     total_cost: sql<number>`SUM(${microdollar_usage.cost})::float`,
     request_count: sql<number>`COUNT(*)::float`,
     total_input_tokens: sql<number>`SUM(${microdollar_usage.input_tokens})::float`,
@@ -39,11 +43,15 @@ export async function GET(request: NextRequest) {
   // Build the group by and order by clauses conditionally
   const groupByClause = [
     sql`DATE(${microdollar_usage.created_at})`,
-    ...(groupByModel ? [microdollar_usage.model] : []),
+    ...(groupByModel
+      ? [sql`COALESCE(${microdollar_usage.requested_model}, ${microdollar_usage.model})`]
+      : []),
   ];
   const orderByClause = [
     desc(sql`DATE(${microdollar_usage.created_at})`),
-    ...(groupByModel ? [microdollar_usage.model] : []),
+    ...(groupByModel
+      ? [sql`COALESCE(${microdollar_usage.requested_model}, ${microdollar_usage.model})`]
+      : []),
   ];
 
   // Build where conditions based on view type
diff --git a/src/routers/organizations/organization-usage-details-router.test.ts b/src/routers/organizations/organization-usage-details-router.test.ts
index 20afc01b2..a7b7c9e97 100644
--- a/src/routers/organizations/organization-usage-details-router.test.ts
+++ b/src/routers/organizations/organization-usage-details-router.test.ts
@@ -219,6 +219,7 @@ describe('organizations usage details trpc router', () => {
         output_tokens: 200,
         created_at: now,
         model: 'gpt-4',
+        requested_model: 'gpt-4',
       });
 
       await insertUsageWithOverrides({
@@ -229,6 +230,7 @@ describe('organizations usage details trpc router', () => {
         output_tokens: 100,
         created_at: now,
         model: 'gpt-3.5-turbo',
+        requested_model: 'gpt-3.5-turbo',
       });
 
       const caller = await createCallerForUser(memberUser.id);
@@ -250,6 +252,30 @@ describe('organizations usage details trpc router', () => {
       expect(gpt35Result?.microdollarCost).toBe('500');
     });
 
+    it('should fall back to model when requested_model is null (legacy rows)', async () => {
+      const now = await getDateFromDb();
+
+      await insertUsageWithOverrides({
+        kilo_user_id: memberUser.id,
+        organization_id: testOrganization.id,
+        cost: 750,
+        created_at: now,
+        model: 'legacy-model',
+        requested_model: null,
+      });
+
+      const caller = await createCallerForUser(memberUser.id);
+
+      const result = await caller.organizations.usageDetails.get({
+        organizationId: testOrganization.id,
+        groupByModel: true,
+      });
+
+      const legacyRow = result.daily.find(d => d.model === 'legacy-model');
+      expect(legacyRow).toBeDefined();
+      expect(legacyRow?.microdollarCost).toBe('750');
+    });
+
     it('should handle empty usage data', async () => {
       const caller = await createCallerForUser(memberUser.id);
 
diff --git a/src/routers/organizations/organization-usage-details-router.ts b/src/routers/organizations/organization-usage-details-router.ts
index 817c6b6d7..6ba7bb800 100644
--- a/src/routers/organizations/organization-usage-details-router.ts
+++ b/src/routers/organizations/organization-usage-details-router.ts
@@ -170,7 +170,7 @@ export const organizationsUsageDetailsRouter = createTRPCRouter({
               datetime: timeBucket.as('datetime'),
               userName: kilocode_users.google_user_name,
               userEmail: kilocode_users.google_user_email,
-              model: microdollar_usage.model,
+              model: sql<string>`COALESCE(${microdollar_usage.requested_model}, ${microdollar_usage.model})`,
               provider: microdollar_usage.provider,
               projectId: microdollar_usage.project_id,
               costMicrodollars: sum(microdollar_usage.cost),
@@ -191,7 +191,7 @@ export const organizationsUsageDetailsRouter = createTRPCRouter({
               timeBucket,
               kilocode_users.google_user_name,
               kilocode_users.google_user_email,
-              microdollar_usage.model,
+              sql`COALESCE(${microdollar_usage.requested_model}, ${microdollar_usage.model})`,
               microdollar_usage.provider,
               microdollar_usage.project_id
             )
@@ -318,7 +318,11 @@ export const organizationsUsageDetailsRouter = createTRPCRouter({
               date: sql<string>`DATE(${microdollar_usage.created_at})`.as('date'),
               userName: kilocode_users.google_user_name,
               userEmail: kilocode_users.google_user_email,
-              ...(groupByModel && { model: microdollar_usage.model }),
+              ...(groupByModel && {
+                model: sql<
+                  string | null
+                >`COALESCE(${microdollar_usage.requested_model}, ${microdollar_usage.model})`,
+              }),
               microdollarCost: sum(microdollar_usage.cost),
               tokenCount: sum(
                 sql`${microdollar_usage.input_tokens} + ${microdollar_usage.output_tokens} + ${microdollar_usage.cache_write_tokens} + ${microdollar_usage.cache_hit_tokens}`
@@ -334,7 +338,9 @@ export const organizationsUsageDetailsRouter = createTRPCRouter({
               sql`DATE(${microdollar_usage.created_at})`,
               kilocode_users.google_user_name,
               kilocode_users.google_user_email,
-              ...(groupByModel ? [microdollar_usage.model] : [])
+              ...(groupByModel
+                ? [sql`COALESCE(${microdollar_usage.requested_model}, ${microdollar_usage.model})`]
+                : [])
             )
             .orderBy(sql`DATE(${microdollar_usage.created_at}) DESC`)
       );