add new models and remove old ones

context_window.json

@@ -9,10 +9,9 @@
     "claude-sonnet-4-20250514": 200000,
     "deepseek-chat": 64000,
     "deepseek-r1": 64000,
-    "gemini-1.5-flash": 1048576,
-    "gemini-1.5-pro": 2097152,
-    "gemini-2.0-flash-lite-preview": 1048576,
-    "gemini-2.0-pro-exp": 2097152,
+    "gemini-2.5-flash-preview-non-thinking": 1048576,
+    "gemini-2.5-flash-preview-thinking": 1048576,
+    "gemini-2.5-pro-preview-06-05": 1048576,
     "gemma-3-27b-it": 128000,
     "gpt-3.5-turbo": 16000,
     "gpt-4-turbo": 128000,