diff --git a/lp/package.json b/lp/package.json
index 1fb96a8c..5a31fbf2 100644
--- a/lp/package.json
+++ b/lp/package.json
@@ -12,7 +12,7 @@
     "deploy:prd": "PUBLIC_ENV=prd VITE_ENV=prd pnpm build && wrangler pages deploy --project-name nepp-chan-lp-prd --branch main"
   },
   "dependencies": {
-    "@ai-sdk/react": "^3.0.210",
+    "@ai-sdk/react": "^4.0.76",
     "@astrojs/check": "^0.9.10",
     "@astrojs/react": "^6.0.2",
     "@heroicons/react": "^2.2.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 61e122fa..d4d8ccf1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -27,8 +27,8 @@ importers:
   lp:
     dependencies:
       '@ai-sdk/react':
-        specifier: ^3.0.210
-        version: 3.0.210(react@19.2.8)(zod@4.4.3)
+        specifier: ^4.0.76
+        version: 4.0.76(react@19.2.8)(zod@4.4.3)
       '@astrojs/check':
         specifier: ^0.9.10
         version: 0.9.10(prettier@3.9.6)(typescript@6.0.3)
@@ -261,8 +261,8 @@ importers:
   web:
     dependencies:
       '@ai-sdk/react':
-        specifier: ^3.0.210
-        version: 3.0.210(react@19.2.8)(zod@4.4.3)
+        specifier: ^4.0.76
+        version: 4.0.76(react@19.2.8)(zod@4.4.3)
       '@astrojs/check':
         specifier: ^0.9.10
         version: 0.9.10(prettier@3.9.6)(typescript@6.0.3)
@@ -379,8 +379,8 @@ importers:
   widget:
     dependencies:
       '@ai-sdk/react':
-        specifier: ^3.0.210
-        version: 3.0.210(react@19.2.8)(zod@4.4.3)
+        specifier: ^4.0.76
+        version: 4.0.76(react@19.2.8)(zod@4.4.3)
       '@heroicons/react':
         specifier: ^2.2.0
         version: 2.2.0(react@19.2.8)
@@ -463,12 +463,24 @@ packages:
     peerDependencies:
       zod: ^3.25.76 || ^4.1.8
 
+  '@ai-sdk/gateway@4.0.59':
+    resolution: {integrity: sha512-9MPyBBXU5snhuvqMa3OSOYtHP+wlyepJ+E0E+9lVNoxLGmi4sZqGeLbIxSYZeTf7qQ2xPshtfo5qDJHaOmAHvw==}
+    engines: {node: '>=22'}
+    peerDependencies:
+      zod: ^3.25.76 || ^4.1.8
+
   '@ai-sdk/google@3.0.83':
     resolution: {integrity: sha512-Pz7aCX0dy+5x+r4K/37HbLZNaPtPL4q2NduzJW64VffLv5sI9Nb478wAd7PlH2r2asiypJsz/Jerf9draTciUA==}
     engines: {node: '>=18'}
     peerDependencies:
       zod: ^3.25.76 || ^4.1.8
 
+  '@ai-sdk/mcp@2.0.34':
+    resolution: {integrity: sha512-JejeZFNplIAQpxI7F6FmE8y68kzcryJ+shmJl3hoj9DO/+ds7G/tIfGJvDEwzKhCZTZlWq5ra+MPrThx02YsGA==}
+    engines: {node: '>=22'}
+    peerDependencies:
+      zod: ^3.25.76 || ^4.1.8
+
   '@ai-sdk/openai@3.0.73':
     resolution: {integrity: sha512-+3x9oxHv9Xp33Iv2L8D+e5hqmZi64jofBKig/9611JKyfV59NdkaDDajtwc0CxOEfARgCVq1BW7dP+526gKOKw==}
     engines: {node: '>=18'}
@@ -505,6 +517,12 @@ packages:
     peerDependencies:
       zod: ^3.25.76 || ^4.1.8
 
+  '@ai-sdk/provider-utils@5.0.28':
+    resolution: {integrity: sha512-TnHUyd/rCYQqHg5RuiOaz/hUql6U+kbUaBW0Rp+0N5UhnAInA9CzzV0HXvuAAPwppDsK6fAx9Rd+tRawpJ/3pg==}
+    engines: {node: '>=22'}
+    peerDependencies:
+      zod: ^3.25.76 || ^4.1.8
+
   '@ai-sdk/provider@1.1.3':
     resolution: {integrity: sha512-qZMxYJ0qqX/RfnuIaab+zp8UAeJn/ygXXAffR5I4N0n1IrvA6qBsjc8hXLmBiMV2zoXlifkacF7sEFnYnjBcqg==}
     engines: {node: '>=18'}
@@ -525,9 +543,13 @@ packages:
     resolution: {integrity: sha512-e0CpNWJUY7OxAFAnCZkw+ri9QOHWwTs1tXP42782KFGCU07qt8NiXCrCVowyCB5dP2r5/Uls+g2oPd8kOJn9dw==}
     engines: {node: '>=22'}
 
-  '@ai-sdk/react@3.0.210':
-    resolution: {integrity: sha512-VprBlyc8yvwlpIdcIICL307vRncXrLlmcRTY/7JR5ND9+LvUcxJU16yW6prClFahqEWVza8Vr8P4Bgk5ZBtp4A==}
-    engines: {node: '>=18'}
+  '@ai-sdk/provider@4.0.7':
+    resolution: {integrity: sha512-6or44XprPzKbr8zkmzosowSE0pxkvJcoojBL+mCZvPUt3kvXp3XSNqeVun9golb1acEfSo6yaEBRT18h2VU+1Q==}
+    engines: {node: '>=22'}
+
+  '@ai-sdk/react@4.0.76':
+    resolution: {integrity: sha512-CVzR29UV0mR69G6VZJUyM+GI28G5GOO/dmgD3K7MRBi4rbMxLC0WD6OuQjXNK/GaaVUuj6PiRbh2nPUOgPfaWQ==}
+    engines: {node: '>=22'}
     peerDependencies:
       react: ^18 || ~19.0.1 || ~19.1.2 || ^19.2.1
 
@@ -3493,6 +3515,12 @@ packages:
     peerDependencies:
       zod: ^3.25.76 || ^4.1.8
 
+  ai@7.0.73:
+    resolution: {integrity: sha512-rm2Rk68seeyhfgXl1JA/oaHcQHL018AfgydkJWx7Bgz0wGDHyvl30SnRIU2V7ZVR60A5K0SOLyP78EZmEJ2tOw==}
+    engines: {node: '>=22'}
+    peerDependencies:
+      zod: ^3.25.76 || ^4.1.8
+
   ajv-draft-04@1.0.0:
     resolution: {integrity: sha512-mv00Te6nmYbRp5DCwclxtt7yV/joXJPGS7nM+97GdxvuttCOfgI3K4U25zboyeX0O+myI8ERluxQe5wljMmVIw==}
     peerDependencies:
@@ -6326,8 +6354,8 @@ packages:
     engines: {node: '>=16'}
     hasBin: true
 
-  swr@2.4.1:
-    resolution: {integrity: sha512-2CC6CiKQtEwaEeNiqWTAw9PGykW8SR5zZX8MZk6TeAvEAnVS7Visz8WzphqgtQ8v2xz/4Q5K+j+SeMaKXeeQIA==}
+  swr@2.5.1:
+    resolution: {integrity: sha512-BRw55e8r0B7SpDN20CAzoQAHl7y1yP7/Zt7oqUjMv0vSt2u2Xnkm88Ws+VypbV9BXHQVuSuyVq7zMjO16wSExw==}
     peerDependencies:
       react: ^16.11.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
 
@@ -7066,12 +7094,26 @@ snapshots:
       '@vercel/oidc': 3.2.0
       zod: 4.4.3
 
+  '@ai-sdk/gateway@4.0.59(zod@4.4.3)':
+    dependencies:
+      '@ai-sdk/provider': 4.0.7
+      '@ai-sdk/provider-utils': 5.0.28(zod@4.4.3)
+      '@vercel/oidc': 3.2.0
+      zod: 4.4.3
+
   '@ai-sdk/google@3.0.83(zod@4.4.3)':
     dependencies:
       '@ai-sdk/provider': 3.0.10
       '@ai-sdk/provider-utils': 4.0.30(zod@4.4.3)
       zod: 4.4.3
 
+  '@ai-sdk/mcp@2.0.34(zod@4.4.3)':
+    dependencies:
+      '@ai-sdk/provider': 4.0.7
+      '@ai-sdk/provider-utils': 5.0.28(zod@4.4.3)
+      pkce-challenge: 5.0.1
+      zod: 4.4.3
+
   '@ai-sdk/openai@3.0.73(zod@4.4.3)':
     dependencies:
       '@ai-sdk/provider': 3.0.10
@@ -7114,6 +7156,15 @@ snapshots:
       eventsource-parser: 3.1.1
       zod: 4.4.3
 
+  '@ai-sdk/provider-utils@5.0.28(zod@4.4.3)':
+    dependencies:
+      '@ai-sdk/provider': 4.0.7
+      '@standard-schema/spec': 1.1.0
+      '@workflow/serde': 4.1.0
+      eventsource-parser: 3.1.1
+      undici: 7.29.0
+      zod: 4.4.3
+
   '@ai-sdk/provider@1.1.3':
     dependencies:
       json-schema: 0.4.0
@@ -7134,12 +7185,18 @@ snapshots:
     dependencies:
       json-schema: 0.4.0
 
-  '@ai-sdk/react@3.0.210(react@19.2.8)(zod@4.4.3)':
+  '@ai-sdk/provider@4.0.7':
     dependencies:
-      '@ai-sdk/provider-utils': 4.0.30(zod@4.4.3)
-      ai: 6.0.208(zod@4.4.3)
+      json-schema: 0.4.0
+
+  '@ai-sdk/react@4.0.76(react@19.2.8)(zod@4.4.3)':
+    dependencies:
+      '@ai-sdk/mcp': 2.0.34(zod@4.4.3)
+      '@ai-sdk/provider': 4.0.7
+      '@ai-sdk/provider-utils': 5.0.28(zod@4.4.3)
+      ai: 7.0.73(zod@4.4.3)
       react: 19.2.8
-      swr: 2.4.1(react@19.2.8)
+      swr: 2.5.1(react@19.2.8)
       throttleit: 2.1.0
     transitivePeerDependencies:
       - zod
@@ -9893,6 +9950,13 @@ snapshots:
       '@opentelemetry/api': 1.9.1
       zod: 4.4.3
 
+  ai@7.0.73(zod@4.4.3):
+    dependencies:
+      '@ai-sdk/gateway': 4.0.59(zod@4.4.3)
+      '@ai-sdk/provider': 4.0.7
+      '@ai-sdk/provider-utils': 5.0.28(zod@4.4.3)
+      zod: 4.4.3
+
   ajv-draft-04@1.0.0(ajv@8.20.0):
     optionalDependencies:
       ajv: 8.20.0
@@ -13121,7 +13185,7 @@ snapshots:
       picocolors: 1.1.1
       sax: 1.6.1
 
-  swr@2.4.1(react@19.2.8):
+  swr@2.5.1(react@19.2.8):
     dependencies:
       dequal: 2.0.3
       react: 19.2.8
diff --git a/web/package.json b/web/package.json
index cd56df52..f40e7d44 100644
--- a/web/package.json
+++ b/web/package.json
@@ -15,7 +15,7 @@
     "openapi:generate": "openapi-typescript http://localhost:8787/doc -o ../shared/src/api/types.d.ts"
   },
   "dependencies": {
-    "@ai-sdk/react": "^3.0.210",
+    "@ai-sdk/react": "^4.0.76",
     "@astrojs/check": "^0.9.10",
     "@astrojs/react": "^6.0.2",
     "@heroicons/react": "^2.2.0",
diff --git a/widget/package.json b/widget/package.json
index 915cfa98..95583992 100644
--- a/widget/package.json
+++ b/widget/package.json
@@ -13,7 +13,7 @@
     "test:cov": "vitest run --coverage"
   },
   "dependencies": {
-    "@ai-sdk/react": "^3.0.210",
+    "@ai-sdk/react": "^4.0.76",
     "@heroicons/react": "^2.2.0",
     "@nepp-chan/shared": "workspace:*",
     "ai": "^6.0.208",