diff --git a/components/repo-issues.tsx b/components/repo-issues.tsx
index 71680ce..75b1dff 100644
--- a/components/repo-issues.tsx
+++ b/components/repo-issues.tsx
@@ -72,6 +72,7 @@ const AGENT_MODELS = {
     { value: 'grok', label: 'Grok' },
   ],
   gemini: [
+    { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
     { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
     { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
   ],
@@ -91,7 +92,7 @@ const DEFAULT_MODELS = {
   codex: 'openai/gpt-5.1',
   copilot: 'claude-sonnet-4.5',
   cursor: 'auto',
-  gemini: 'gemini-2.5-pro',
+  gemini: 'gemini-3-pro-preview',
   opencode: 'gpt-5',
 } as const
 
diff --git a/components/repo-pull-requests.tsx b/components/repo-pull-requests.tsx
index 044bde2..b886819 100644
--- a/components/repo-pull-requests.tsx
+++ b/components/repo-pull-requests.tsx
@@ -80,6 +80,7 @@ const AGENT_MODELS = {
     { value: 'grok', label: 'Grok' },
   ],
   gemini: [
+    { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
     { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
     { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
   ],
@@ -99,7 +100,7 @@ const DEFAULT_MODELS = {
   codex: 'openai/gpt-5.1',
   copilot: 'claude-sonnet-4.5',
   cursor: 'auto',
-  gemini: 'gemini-2.5-pro',
+  gemini: 'gemini-3-pro-preview',
   opencode: 'gpt-5',
 } as const
 
diff --git a/components/revert-commit-dialog.tsx b/components/revert-commit-dialog.tsx
index a85b777..32285e9 100644
--- a/components/revert-commit-dialog.tsx
+++ b/components/revert-commit-dialog.tsx
@@ -90,6 +90,7 @@ const AGENT_MODELS = {
     { value: 'grok', label: 'Grok' },
   ],
   gemini: [
+    { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
     { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
     { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
   ],
@@ -109,7 +110,7 @@ const DEFAULT_MODELS = {
   codex: 'openai/gpt-5.1',
   copilot: 'claude-sonnet-4.5',
   cursor: 'auto',
-  gemini: 'gemini-2.5-pro',
+  gemini: 'gemini-3-pro-preview',
   opencode: 'gpt-5',
 } as const
 
diff --git a/components/task-details.tsx b/components/task-details.tsx
index ecda03d..5b1b2c4 100644
--- a/components/task-details.tsx
+++ b/components/task-details.tsx
@@ -143,6 +143,7 @@ const AGENT_MODELS = {
     { value: 'grok', label: 'Grok' },
   ],
   gemini: [
+    { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
     { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
     { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
   ],
@@ -162,7 +163,7 @@ const DEFAULT_MODELS = {
   codex: 'openai/gpt-5.1',
   copilot: 'claude-sonnet-4.5',
   cursor: 'auto',
-  gemini: 'gemini-2.5-pro',
+  gemini: 'gemini-3-pro-preview',
   opencode: 'gpt-5',
 } as const
 
@@ -708,6 +709,7 @@ export function TaskDetails({ task, maxSandboxDuration = 300 }: TaskDetailsProps
       { value: 'grok', label: 'Grok' },
     ],
     gemini: [
+      { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
       { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
       { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
     ],
diff --git a/components/task-form.tsx b/components/task-form.tsx
index 71932e7..6fef5e3 100644
--- a/components/task-form.tsx
+++ b/components/task-form.tsx
@@ -103,6 +103,7 @@ const AGENT_MODELS = {
     { value: 'grok', label: 'Grok' },
   ],
   gemini: [
+    { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
     { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
     { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
   ],
@@ -123,7 +124,7 @@ const DEFAULT_MODELS = {
   codex: 'openai/gpt-5.1',
   copilot: 'claude-sonnet-4.5',
   cursor: 'auto',
-  gemini: 'gemini-2.5-pro',
+  gemini: 'gemini-3-pro-preview',
   opencode: 'gpt-5',
 } as const
 
diff --git a/components/task-sidebar.tsx b/components/task-sidebar.tsx
index 9b72d1f..5fb35e4 100644
--- a/components/task-sidebar.tsx
+++ b/components/task-sidebar.tsx
@@ -59,6 +59,7 @@ const AGENT_MODELS = {
     { value: 'grok', label: 'Grok' },
   ],
   gemini: [
+    { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
     { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
     { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
   ],
diff --git a/components/tasks-list-client.tsx b/components/tasks-list-client.tsx
index 3adb7f7..9a4f8f0 100644
--- a/components/tasks-list-client.tsx
+++ b/components/tasks-list-client.tsx
@@ -72,6 +72,7 @@ const AGENT_MODELS = {
     { value: 'grok', label: 'Grok' },
   ],
   gemini: [
+    { value: 'gemini-3-pro-preview', label: 'Gemini 3 Pro Preview' },
     { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
     { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
   ],