diff --git a/models.ts b/models.ts
index 7a3dd02..4c77c49 100644
--- a/models.ts
+++ b/models.ts
@@ -140,14 +140,14 @@ export const providers = {
     models: {
       grok: {
         displayName: "Grok",
-        resolve: "xai/grok-4",
-        openRouterResolve: "openrouter/x-ai/grok-4",
+        resolve: "xai/grok-4.3",
+        openRouterResolve: "openrouter/x-ai/grok-4.3",
         preferred: true,
       },
       "grok-fast": {
         displayName: "Grok Fast",
-        resolve: "xai/grok-4-fast",
-        openRouterResolve: "openrouter/x-ai/grok-4-fast",
+        resolve: "xai/grok-4-1-fast",
+        openRouterResolve: "openrouter/x-ai/grok-4.1-fast",
       },
       "grok-code-fast": {
         displayName: "Grok Code Fast",
@@ -354,8 +354,8 @@ export const providers = {
       },
       grok: {
         displayName: "Grok",
-        resolve: "openrouter/x-ai/grok-4",
-        openRouterResolve: "openrouter/x-ai/grok-4",
+        resolve: "openrouter/x-ai/grok-4.3",
+        openRouterResolve: "openrouter/x-ai/grok-4.3",
       },
       "deepseek-pro": {
         displayName: "DeepSeek Pro",
diff --git a/test/__snapshots__/models-catalog.main.test.ts.snap b/test/__snapshots__/models-catalog.main.test.ts.snap
index 6cf3d37..343519e 100644
--- a/test/__snapshots__/models-catalog.main.test.ts.snap
+++ b/test/__snapshots__/models-catalog.main.test.ts.snap
@@ -27,8 +27,8 @@ exports[`latest model per provider snapshot > matches snapshot 1`] = `
     "releaseDate": "2026-04-24",
   },
   "openrouter": {
-    "modelId": "poolside/laguna-xs.2:free",
-    "releaseDate": "2026-04-28",
+    "modelId": "x-ai/grok-4.3",
+    "releaseDate": "2026-05-01",
   },
   "xai": {
     "modelId": "grok-4.3",