feat: added latest (as of 2025-12-25) GPT and Claude model support

public/chat/help.md

@@ -17,7 +17,7 @@ Navigate to **Settings ⚙️ → General → LLM Provider**. Depending on your
 1. Obtain an OpenAI API Key from [**OpenAI**](https://platform.openai.com/account/api-keys). You may need to create an account and add a payment method to generate an API Key.
 2. In **Settings ⚙️ → General → LLM Provider**, select **OpenAI** as your provider.
 3. Enter your API Key in **OpenAI → Key**.
-4. Select your preferred model from the **OpenAI → Model** dropdown. For optimal performance, we recommend `gpt-5` or `gpt-4o`.
+4. Select your preferred model from the **OpenAI → Model** dropdown. For optimal performance, we recommend `gpt-5.2` or `gpt-5-mini`.
 5. Optionally, choose whether to enable Flex Mode in **OpenAI → Flex Mode**. Flex Mode offers discounted pricing, but may result in slower response times.
 
 ---

public/config.json

@@ -5,7 +5,7 @@
         "openai": {
             "api_key": "",
             "flex": false,
-            "model": "gpt-4o"
+            "model": "gpt-5.2"
         },
         "gemini": {
             "api_key": "",
@@ -13,12 +13,12 @@
         },
         "claude": {
             "api_key": "",
-            "model": "claude-sonnet-4-0"
+            "model": "claude-sonnet-4.5"
         },
         "claude_openrouter": {
             "api_key": "",
             "base_url": "https://openrouter.ai/api/v1/chat/completions",
-            "model": "anthropic/claude-sonnet-4"
+            "model": "anthropic/claude-sonnet-4.5"
         },
         "openai_compatible": {
             "api_key": "",