diff --git a/app/src/main/java/dev/kaizen/app/chat/ChatComponents.kt b/app/src/main/java/dev/kaizen/app/chat/ChatComponents.kt
index 6db2d06..45eae75 100644
--- a/app/src/main/java/dev/kaizen/app/chat/ChatComponents.kt
+++ b/app/src/main/java/dev/kaizen/app/chat/ChatComponents.kt
@@ -151,6 +151,9 @@ fun ModePillsRow(
     onReasoningChange: (ReasoningPreset) -> Unit,
     samplingPrefs: SamplingPrefs,
     onSamplingChange: (SamplingPrefs) -> Unit,
+    currentModelId: String = "",
+    webSearchProvider: String = "google",
+    onWebSearchProviderChange: (String) -> Unit = {},
     modifier: Modifier = Modifier,
 ) {
     val cs = MaterialTheme.colorScheme
@@ -159,6 +162,8 @@ fun ModePillsRow(
 
     var showReasoningMenu by remember { mutableStateOf(false) }
     var showSamplingPopup by remember { mutableStateOf(false) }
+    var showSearchProviderMenu by remember { mutableStateOf(false) }
+    val isVertexModel = currentModelId.startsWith("vertex:")
 
     Row(
         modifier
@@ -255,6 +260,51 @@ fun ModePillsRow(
                 active = active,
                 onClick = { onToggle(mode.labelRes) },
             )
+
+            // Search provider dropdown — only for Vertex models when search is active
+            if (mode.labelRes == R.string.mode_search && active && isVertexModel) {
+                Box {
+                    val providerLabel = stringResource(
+                        if (webSearchProvider == "enterprise") R.string.search_provider_enterprise
+                        else R.string.search_provider_google
+                    )
+                    ModePill(
+                        icon = KaizenIcons.Globe,
+                        label = providerLabel,
+                        active = true,
+                        showChevron = true,
+                        onClick = { showSearchProviderMenu = true },
+                    )
+                    DropdownMenu(
+                        expanded = showSearchProviderMenu,
+                        onDismissRequest = { showSearchProviderMenu = false },
+                        containerColor = if (isDark) Color(0xFF1A2030) else Color(0xFFF8F9FB),
+                        shadowElevation = 16.dp,
+                        shape = KaizenShapes.md,
+                    ) {
+                        listOf("google" to R.string.search_provider_google, "enterprise" to R.string.search_provider_enterprise).forEach { (value, labelRes) ->
+                            Row(
+                                Modifier
+                                    .fillMaxWidth()
+                                    .clickable { onWebSearchProviderChange(value); showSearchProviderMenu = false }
+                                    .padding(horizontal = 16.dp, vertical = 10.dp),
+                                verticalAlignment = Alignment.CenterVertically,
+                            ) {
+                                Text(
+                                    stringResource(labelRes),
+                                    fontSize = 13.5.sp,
+                                    color = if (value == webSearchProvider) accent.primary else cs.onBackground.copy(alpha = 0.85f),
+                                    fontWeight = if (value == webSearchProvider) FontWeight.SemiBold else FontWeight.Normal,
+                                    modifier = Modifier.weight(1f),
+                                )
+                                if (value == webSearchProvider) {
+                                    Icon(KaizenIcons.Check, null, tint = accent.primary, modifier = Modifier.size(15.dp))
+                                }
+                            }
+                        }
+                    }
+                }
+            }
         }
     }
 }
diff --git a/app/src/main/java/dev/kaizen/app/chat/ChatScreen.kt b/app/src/main/java/dev/kaizen/app/chat/ChatScreen.kt
index f01286a..142db93 100644
--- a/app/src/main/java/dev/kaizen/app/chat/ChatScreen.kt
+++ b/app/src/main/java/dev/kaizen/app/chat/ChatScreen.kt
@@ -114,6 +114,7 @@ fun ChatScreen(
     var activeMode by remember { mutableStateOf<Int?>(null) }
     var reasoningPreset by remember { mutableStateOf(ReasoningPreset.Standard) }
     var samplingPrefs by remember { mutableStateOf(SamplingPrefs()) }
+    var webSearchProvider by remember { mutableStateOf("google") }
     var usedTokens by remember { mutableStateOf(0) }
     var chatModel by remember { mutableStateOf<String?>(null) }
     var streamJob by remember { mutableStateOf<Job?>(null) }
@@ -584,6 +585,7 @@ fun ChatScreen(
                     preferThroughput = reasoningPreset.throughput,
                     attachments = uploadedAtts.takeIf { it.isNotEmpty() },
                     webSearch = activeMode == R.string.mode_search,
+                    webSearchProvider = if (activeMode == R.string.mode_search && cfg.model.startsWith("vertex:")) webSearchProvider else null,
                     temperature = samplingPrefs.temperature.takeIf { it.enabled }?.value,
                     topP = samplingPrefs.topP.takeIf { it.enabled }?.value,
                     topK = samplingPrefs.topK.takeIf { it.enabled }?.value?.toInt(),
@@ -1055,6 +1057,9 @@ fun ChatScreen(
                                 onReasoningChange = { reasoningPreset = it; haptics.tick() },
                                 samplingPrefs = samplingPrefs,
                                 onSamplingChange = { samplingPrefs = it },
+                                currentModelId = session.config?.model ?: "",
+                                webSearchProvider = webSearchProvider,
+                                onWebSearchProviderChange = { webSearchProvider = it; haptics.tick() },
                             )
                             Spacer(Modifier.height(if (imeVisible) 6.dp else 10.dp))
                             ChatInput(
diff --git a/app/src/main/java/dev/kaizen/app/net/KaizenApi.kt b/app/src/main/java/dev/kaizen/app/net/KaizenApi.kt
index b47e745..0c1b3da 100644
--- a/app/src/main/java/dev/kaizen/app/net/KaizenApi.kt
+++ b/app/src/main/java/dev/kaizen/app/net/KaizenApi.kt
@@ -37,6 +37,7 @@ import java.util.concurrent.TimeUnit
     val preferThroughput: Boolean? = null,
     val attachments: List<Attachment>? = null,
     val webSearch: Boolean? = null,
+    val webSearchProvider: String? = null,
     val temperature: Float? = null,
     val topP: Float? = null,
     val topK: Int? = null,
@@ -487,6 +488,7 @@ object KaizenApi {
         preferThroughput: Boolean = false,
         attachments: List<Attachment>? = null,
         webSearch: Boolean = false,
+        webSearchProvider: String? = null,
         temperature: Float? = null,
         topP: Float? = null,
         topK: Int? = null,
@@ -499,6 +501,7 @@ object KaizenApi {
                 preferThroughput = if (preferThroughput) true else null,
                 attachments = attachments?.takeIf { it.isNotEmpty() },
                 webSearch = if (webSearch) true else null,
+                webSearchProvider = if (webSearch) webSearchProvider else null,
                 temperature = temperature,
                 topP = topP,
                 topK = topK,
diff --git a/app/src/main/res/values-en/strings.xml b/app/src/main/res/values-en/strings.xml
index b28c744..40121ea 100644
--- a/app/src/main/res/values-en/strings.xml
+++ b/app/src/main/res/values-en/strings.xml
@@ -48,6 +48,8 @@
     <string name="mode_search">Search</string>
     <string name="mode_video">Video</string>
     <string name="mode_audio">Audio</string>
+    <string name="search_provider_google">Google</string>
+    <string name="search_provider_enterprise">Enterprise</string>
 
     <!-- Suggestion pills -->
     <string name="suggest_brainstorm">Brainstorm</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5301c71..5b2d3d4 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -50,6 +50,8 @@
     <string name="mode_search">Suche</string>
     <string name="mode_video">Video</string>
     <string name="mode_audio">Audio</string>
+    <string name="search_provider_google">Google</string>
+    <string name="search_provider_enterprise">Enterprise</string>
 
     <!-- Suggestion pills -->
     <string name="suggest_brainstorm">Brainstormen</string>