sync_models: Handle model name collisions (#418)

This is particularly important for the available_providers list, where
we want
to list all of the matching providers if there are multiple. For
example,
"gemini-flash" from vertex and "gemini/gemini-flash" would be collapsed
into a
single entry, but we want both providers in available_providers.

This doesn't handle different pricing or parameters for the same model
on
different providers, but is at least more deterministic than previously.
For
now we always choose the provider that is alphabetically first.

Author: aswink

packages/proxy/schema/model_list.json

@@ -1492,7 +1492,8 @@
     "max_input_tokens": 131072,
     "max_output_tokens": 32766,
     "available_providers": [
-      "groq"
+      "groq",
+      "together"
     ]
   },
   "openai/gpt-oss-20b": {
@@ -1506,7 +1507,8 @@
     "max_input_tokens": 131072,
     "max_output_tokens": 32768,
     "available_providers": [
-      "groq"
+      "groq",
+      "together"
     ]
   },
   "accounts/fireworks/models/gpt-oss-120b": {
@@ -2924,6 +2926,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65536,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -2940,6 +2943,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65536,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -2956,6 +2960,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65536,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -2969,10 +2974,11 @@
     "displayName": "Gemini 3 Pro (Preview)",
     "reasoning": true,
     "reasoning_budget": true,
-    "deprecation_date": "2026-03-26",
+    "deprecation_date": "2026-03-09",
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -2989,7 +2995,8 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
-      "google"
+      "google",
+      "vertex"
     ]
   },
   "gemini-2.5-flash": {
@@ -3005,6 +3012,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3021,6 +3029,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3038,6 +3047,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3164,6 +3174,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3183,6 +3194,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3199,6 +3211,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 65535,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3214,21 +3227,23 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 8192,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
   "gemini-2.0-flash-001": {
     "format": "google",
     "flavor": "chat",
     "multimodal": true,
-    "input_cost_per_mil_tokens": 0.15,
-    "output_cost_per_mil_tokens": 0.6,
-    "input_cache_read_cost_per_mil_tokens": 0.0375,
+    "input_cost_per_mil_tokens": 0.1,
+    "output_cost_per_mil_tokens": 0.4,
+    "input_cache_read_cost_per_mil_tokens": 0.025,
     "deprecation_date": "2026-06-01",
     "parent": "gemini-2.0-flash",
     "max_input_tokens": 1048576,
     "max_output_tokens": 8192,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3244,6 +3259,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 8192,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3259,6 +3275,7 @@
     "max_input_tokens": 1048576,
     "max_output_tokens": 8192,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3272,6 +3289,7 @@
     "max_input_tokens": 65536,
     "max_output_tokens": 32768,
     "available_providers": [
+      "google",
       "vertex"
     ]
   },
@@ -3280,13 +3298,13 @@
     "flavor": "chat",
     "multimodal": true,
     "input_cost_per_mil_tokens": 0.075,
-    "output_cost_per_mil_tokens": 0.3,
+    "output_cost_per_mil_tokens": 0,
     "displayName": "Gemini 1.5 Flash",
     "deprecation_date": "2025-09-29",
-    "max_input_tokens": 1000000,
+    "max_input_tokens": 8192,
     "max_output_tokens": 8192,
     "available_providers": [
-      "vertex"
+      "google"
     ]
   },
   "gemini-1.5-flash-latest": {
@@ -3488,12 +3506,13 @@
     "format": "google",
     "flavor": "chat",
     "multimodal": true,
-    "input_cost_per_mil_tokens": 0,
-    "output_cost_per_mil_tokens": 0,
+    "input_cost_per_mil_tokens": 0.3,
+    "output_cost_per_mil_tokens": 2.5,
+    "input_cache_read_cost_per_mil_tokens": 0.03,
     "experimental": true,
     "deprecated": true,
-    "max_input_tokens": 2097152,
-    "max_output_tokens": 8192,
+    "max_input_tokens": 1048576,
+    "max_output_tokens": 65535,
     "available_providers": [
       "google"
     ]