chore: update provider data [skip ci]

data/providers.json

@@ -3335,6 +3335,17 @@
             "tools"
           ]
         },
+        {
+          "name": "inception/mercury-2",
+          "type": "chat",
+          "input_price_per_1m": 0.25,
+          "output_price_per_1m": 0.75,
+          "currency": "USD",
+          "capabilities": [
+            "tools",
+            "reasoning"
+          ]
+        },
         {
           "name": "google/gemini-3.1-flash-lite-preview",
           "type": "vision",
@@ -4841,6 +4852,19 @@
             "tools"
           ]
         },
+        {
+          "name": "openai/gpt-5.4",
+          "type": "vision",
+          "input_price_per_1m": 2.5,
+          "output_price_per_1m": 15,
+          "currency": "USD",
+          "capabilities": [
+            "vision",
+            "files",
+            "tools",
+            "reasoning"
+          ]
+        },
         {
           "name": "openai/gpt-audio",
           "type": "audio",
@@ -5347,6 +5371,19 @@
             "reasoning"
           ]
         },
+        {
+          "name": "openai/gpt-5.4-pro",
+          "type": "vision",
+          "input_price_per_1m": 30,
+          "output_price_per_1m": 180,
+          "currency": "USD",
+          "capabilities": [
+            "vision",
+            "files",
+            "tools",
+            "reasoning"
+          ]
+        },
         {
           "name": "openai/gpt-4-0314",
           "type": "chat",