diff --git a/packages/data-schemas/src/methods/tx.spec.ts b/packages/data-schemas/src/methods/tx.spec.ts
index 323b591858..4a3af83bbf 100644
--- a/packages/data-schemas/src/methods/tx.spec.ts
+++ b/packages/data-schemas/src/methods/tx.spec.ts
@@ -473,10 +473,10 @@ describe('getMultiplier', () => {
   it('should use the documented gpt-5.6 pricing', () => {
     const expectedPricing = {
       'gpt-5.6': {
-        standard: { prompt: 5, completion: 30 },
-        cache: { write: 6.25, read: 0.5 },
-        premium: { threshold: 272000, prompt: 10, completion: 45 },
-        premiumCache: { threshold: 272000, write: 12.5, read: 1 },
+        standard: { prompt: 4, completion: 20 },
+        cache: { write: 5, read: 0.4 },
+        premium: { threshold: 272000, prompt: 8, completion: 30 },
+        premiumCache: { threshold: 272000, write: 10, read: 0.8 },
       },
       'gpt-5.6-terra': {
         standard: { prompt: 2, completion: 12 },
diff --git a/packages/data-schemas/src/methods/tx.ts b/packages/data-schemas/src/methods/tx.ts
index d498179052..b608f54bf9 100644
--- a/packages/data-schemas/src/methods/tx.ts
+++ b/packages/data-schemas/src/methods/tx.ts
@@ -147,7 +147,7 @@ export const tokenValues: Record<string, { prompt: number; completion: number }>
     'gpt-5.4-nano': { prompt: 0.2, completion: 1.25 },
     'gpt-5.5': { prompt: 5, completion: 30 },
     'gpt-5.5-pro': { prompt: 30, completion: 180 },
-    'gpt-5.6': { prompt: 5, completion: 30 },
+    'gpt-5.6': { prompt: 4, completion: 20 },
     'gpt-5.6-terra': { prompt: 2, completion: 12 },
     'gpt-5.6-luna': { prompt: 0.2, completion: 1.2 },
     'chat-latest': { prompt: 5, completion: 30 },
@@ -380,7 +380,7 @@ export const cacheTokenValues: Record<string, { write: number; read: number }> =
   'gpt-5.4-mini': { write: 0.75, read: 0.075 },
   'gpt-5.4-nano': { write: 0.2, read: 0.02 },
   'gpt-5.5': { write: 5, read: 0.5 },
-  'gpt-5.6': { write: 6.25, read: 0.5 },
+  'gpt-5.6': { write: 5, read: 0.4 },
   'gpt-5.6-terra': { write: 2.5, read: 0.2 },
   'gpt-5.6-luna': { write: 0.25, read: 0.02 },
   'chat-latest': { write: 5, read: 0.5 },
@@ -435,7 +435,7 @@ export const premiumTokenValues: Record<
   'gpt-5.4-pro': { threshold: 272000, prompt: 60, completion: 270 },
   'gpt-5.5': { threshold: 272000, prompt: 10, completion: 45 },
   'gpt-5.5-pro': { threshold: 272000, prompt: 60, completion: 270 },
-  'gpt-5.6': { threshold: 272000, prompt: 10, completion: 45 },
+  'gpt-5.6': { threshold: 272000, prompt: 8, completion: 30 },
   'gpt-5.6-terra': { threshold: 272000, prompt: 4, completion: 18 },
   'gpt-5.6-luna': { threshold: 272000, prompt: 0.4, completion: 1.8 },
   'grok-4.5': { threshold: 200000, prompt: 4, completion: 12 },
@@ -456,7 +456,7 @@ export const premiumCacheTokenValues: Record<
 > = {
   'gpt-5.4': { threshold: 272000, write: 5, read: 0.5 },
   'gpt-5.5': { threshold: 272000, write: 10, read: 1 },
-  'gpt-5.6': { threshold: 272000, write: 12.5, read: 1 },
+  'gpt-5.6': { threshold: 272000, write: 10, read: 0.8 },
   'gpt-5.6-terra': { threshold: 272000, write: 5, read: 0.4 },
   'gpt-5.6-luna': { threshold: 272000, write: 0.5, read: 0.04 },
 };