diff --git a/src/providers/gemini/antigravity-core.js b/src/providers/gemini/antigravity-core.js
index 7f1be8a..f08c1e7 100644
--- a/src/providers/gemini/antigravity-core.js
+++ b/src/providers/gemini/antigravity-core.js
@@ -62,6 +62,7 @@ const MODEL_ALIAS_MAP = {
     'gemini-2.5-computer-use-preview-10-2025': 'rev19-uic3-1p',
     'gemini-3-pro-image-preview': 'gemini-3-pro-image',
     'gemini-3-pro-preview': 'gemini-3-pro-high',
+    'gemini-3.1-pro-preview': 'gemini-3.1-pro-high',
     'gemini-3-flash-preview': 'gemini-3-flash',
     'gemini-2.5-flash-preview': 'gemini-2.5-flash',
     'gemini-claude-sonnet-4-5': 'claude-sonnet-4-5',
@@ -75,6 +76,7 @@ const MODEL_NAME_MAP = {
     'rev19-uic3-1p': 'gemini-2.5-computer-use-preview-10-2025',
     'gemini-3-pro-image': 'gemini-3-pro-image-preview',
     'gemini-3-pro-high': 'gemini-3-pro-preview',
+    'gemini-3.1-pro-high': 'gemini-3.1-pro-preview',
     'gemini-3-flash': 'gemini-3-flash-preview',
     'gemini-2.5-flash': 'gemini-2.5-flash-preview',
     'claude-sonnet-4-5': 'gemini-claude-sonnet-4-5',
diff --git a/src/providers/provider-models.js b/src/providers/provider-models.js
index 936cc4b..0c14675 100644
--- a/src/providers/provider-models.js
+++ b/src/providers/provider-models.js
@@ -11,11 +11,13 @@ export const PROVIDER_MODELS = {
         'gemini-2.5-pro-preview-06-05',
         'gemini-2.5-flash-preview-09-2025',
         'gemini-3-pro-preview',
-        'gemini-3-flash-preview'
+        'gemini-3-flash-preview',
+        'gemini-3.1-pro-preview',
     ],
     'gemini-antigravity': [
         'gemini-2.5-computer-use-preview-10-2025',
         'gemini-3-pro-image-preview',
+        'gemini-3.1-pro-preview',
         'gemini-3-pro-preview',
         'gemini-3-flash-preview',
         'gemini-2.5-flash-preview',