diff --git a/packages/cost/models/authors/openai/gpt-4.1/endpoints.ts b/packages/cost/models/authors/openai/gpt-4.1/endpoints.ts
index 846e375d3d..c3be95d572 100644
--- a/packages/cost/models/authors/openai/gpt-4.1/endpoints.ts
+++ b/packages/cost/models/authors/openai/gpt-4.1/endpoints.ts
@@ -191,7 +191,7 @@ export const endpoints = {
       "frequency_penalty",
       "presence_penalty",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },
@@ -229,7 +229,7 @@ export const endpoints = {
       "frequency_penalty",
       "presence_penalty",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },
@@ -267,7 +267,7 @@ export const endpoints = {
       "frequency_penalty",
       "presence_penalty",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },
@@ -305,7 +305,7 @@ export const endpoints = {
       "frequency_penalty",
       "presence_penalty",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },
diff --git a/packages/cost/models/authors/openai/gpt-4o/endpoints.ts b/packages/cost/models/authors/openai/gpt-4o/endpoints.ts
index 805eb2307a..5305b5ad77 100644
--- a/packages/cost/models/authors/openai/gpt-4o/endpoints.ts
+++ b/packages/cost/models/authors/openai/gpt-4o/endpoints.ts
@@ -74,7 +74,7 @@ export const endpoints = {
       "frequency_penalty",
       "presence_penalty",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },
@@ -151,7 +151,7 @@ export const endpoints = {
       "frequency_penalty",
       "presence_penalty",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },
diff --git a/packages/cost/models/authors/openai/o3/endpoints.ts b/packages/cost/models/authors/openai/o3/endpoints.ts
index ecf4f398a3..04a4700353 100644
--- a/packages/cost/models/authors/openai/o3/endpoints.ts
+++ b/packages/cost/models/authors/openai/o3/endpoints.ts
@@ -173,7 +173,7 @@ export const endpoints = {
       "logit_bias",
       "max_tokens",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },
diff --git a/packages/cost/models/authors/openai/o4/endpoints.ts b/packages/cost/models/authors/openai/o4/endpoints.ts
index d59f652040..28d0486cae 100644
--- a/packages/cost/models/authors/openai/o4/endpoints.ts
+++ b/packages/cost/models/authors/openai/o4/endpoints.ts
@@ -64,7 +64,7 @@ export const endpoints = {
       "max_completion_tokens",
       "response_format",
     ],
-    ptbEnabled: true,
+    ptbEnabled: false,
     endpointConfigs: {
       "*": {},
     },