add latest gemini 2.5 flash(-lite) model names and aliases (#3060)

Author: moritzwilksch

pydantic_ai_slim/pydantic_ai/models/__init__.py

@@ -141,12 +141,20 @@
         'google-gla:gemini-2.0-flash',
         'google-gla:gemini-2.0-flash-lite',
         'google-gla:gemini-2.5-flash',
+        'google-gla:gemini-2.5-flash-preview-09-2025',
+        'google-gla:gemini-flash-latest',
         'google-gla:gemini-2.5-flash-lite',
+        'google-gla:gemini-2.5-flash-lite-preview-09-2025',
+        'google-gla:gemini-flash-lite-latest',
         'google-gla:gemini-2.5-pro',
         'google-vertex:gemini-2.0-flash',
         'google-vertex:gemini-2.0-flash-lite',
         'google-vertex:gemini-2.5-flash',
+        'google-vertex:gemini-2.5-flash-preview-09-2025',
+        'google-vertex:gemini-flash-latest',
         'google-vertex:gemini-2.5-flash-lite',
+        'google-vertex:gemini-2.5-flash-lite-preview-09-2025',
+        'google-vertex:gemini-flash-lite-latest',
         'google-vertex:gemini-2.5-pro',
         'grok:grok-4',
         'grok:grok-4-0709',

pydantic_ai_slim/pydantic_ai/models/gemini.py

@@ -46,7 +46,11 @@
     'gemini-2.0-flash',
     'gemini-2.0-flash-lite',
     'gemini-2.5-flash',
+    'gemini-2.5-flash-preview-09-2025',
     'gemini-2.5-flash-lite',
+    'gemini-2.5-flash-lite-preview-09-2025',
+    'gemini-flash-latest',
+    'gemini-flash-lite-latest',
     'gemini-2.5-pro',
 ]
 """Latest Gemini models."""

pydantic_ai_slim/pydantic_ai/models/google.py

@@ -95,7 +95,11 @@
     'gemini-2.0-flash',
     'gemini-2.0-flash-lite',
     'gemini-2.5-flash',
+    'gemini-2.5-flash-preview-09-2025',
+    'gemini-flash-latest',
     'gemini-2.5-flash-lite',
+    'gemini-2.5-flash-lite-preview-09-2025',
+    'gemini-flash-lite-latest',
     'gemini-2.5-pro',
 ]
 """Latest Gemini models."""