diff --git a/package.json b/package.json
index 106b6ca..ce6216a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperbrowser/sdk",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "Node SDK for Hyperbrowser API",
   "author": "",
   "repository": {
diff --git a/src/tools/schema.ts b/src/tools/schema.ts
index efdcd12..e4075dd 100644
--- a/src/tools/schema.ts
+++ b/src/tools/schema.ts
@@ -194,9 +194,9 @@ const BROWSER_USE_LLM_SCHEMA = {
   enum: [
     "gpt-4o",
     "gpt-4o-mini",
-    "claude-3-7-sonnet-20250219",
-    "claude-3-5-sonnet-20241022",
-    "claude-3-5-haiku-20241022",
+    "claude-sonnet-5",
+    "claude-sonnet-4-6",
+    "claude-haiku-5-5",
     "gemini-2.0-flash",
     "gemini-3.8-flash",
   ],
diff --git a/src/types/constants.ts b/src/types/constants.ts
index e28f0b7..521fcf7 100644
--- a/src/types/constants.ts
+++ b/src/types/constants.ts
@@ -46,12 +46,17 @@ export type BrowserUseLlm =
   | "gpt-5"
   | "gpt-5-mini"
   | "claude-sonnet-5"
-  | "claude-sonnet-4-5"
   | "claude-sonnet-4-6"
   | "claude-haiku-5-5"
+  /** @deprecated Retires November 30, 2026; use "claude-sonnet-5". */
+  | "claude-sonnet-4-5"
+  /** @deprecated Retired; the API maps this to "claude-sonnet-5". */
   | "claude-sonnet-4-20250514"
+  /** @deprecated Retired; the API maps this to "claude-sonnet-5". */
   | "claude-3-7-sonnet-20250219"
+  /** @deprecated Retired; the API maps this to "claude-sonnet-5". */
   | "claude-3-5-sonnet-20241022"
+  /** @deprecated Retired; the API maps this to "claude-sonnet-5". */
   | "claude-3-5-haiku-20241022"
   | "gemini-2.0-flash"
   | "gemini-2.5-flash"
@@ -61,18 +66,25 @@ export type ClaudeComputerUseLlm =
   | "claude-opus-5-5"
   | "claude-fable-5-1"
   | "claude-opus-5"
-  | "claude-opus-4-5"
-  | "claude-opus-4-6"
-  | "claude-opus-4-7"
   | "claude-opus-4-8"
-  | "claude-haiku-5-5"
-  | "claude-haiku-4-5-20251001"
+  | "claude-opus-4-7"
+  | "claude-opus-4-6"
+  | "claude-opus-4-5"
   | "claude-sonnet-5-5"
   | "claude-sonnet-5"
-  | "claude-sonnet-4-5"
   | "claude-sonnet-4-6"
+  | "claude-haiku-5-5"
+  | "claude-haiku-4-5-20251001"
+  /** @deprecated Retires November 30, 2026; use "claude-sonnet-5-5". */
+  | "claude-sonnet-4-5"
+  /** @deprecated Retired; the API maps this to "claude-sonnet-4-6". */
   | "claude-sonnet-4-20250514"
-  | "claude-3-7-sonnet-20250219";
+  /** @deprecated Retired; the API maps this to "claude-sonnet-4-6". */
+  | "claude-3-7-sonnet-20250219"
+  /** @deprecated Retired; the API maps this to "claude-opus-4-8". */
+  | "claude-opus-4-20250514"
+  /** @deprecated Retired legacy ID; the API maps this to "claude-opus-4-8". */
+  | "claude-4-opus-20250514";
 
 export type ClaudeComputerUseReasoningEffort = "low" | "medium" | "high" | "xhigh" | "max";
 
@@ -94,6 +106,7 @@ export type CuaReasoningEffort = "none" | "low" | "medium" | "high" | "xhigh" |
 export type HyperAgentVersion = "0.8.0" | "1.1.0";
 
 export type HyperAgentLlm =
+  | "gpt-6-luna"
   | "gpt-5.6-luna"
   | "gpt-5.5"
   | "gpt-5.2"
@@ -106,9 +119,10 @@ export type HyperAgentLlm =
   | "gpt-4.1-mini"
   | "gpt-4.1-nano"
   | "claude-sonnet-5"
-  | "claude-sonnet-4-5"
   | "claude-sonnet-4-6"
   | "claude-haiku-5-5"
+  /** @deprecated Retires November 30, 2026; use "claude-sonnet-5". */
+  | "claude-sonnet-4-5"
   | "gemini-2.5-flash"
   | "gemini-3.8-flash"
   | "gemini-3.7-flash"