refactor: default to openrouter with gemma-3-27b fallback

README.md

@@ -7,7 +7,7 @@ A SearXNG plugin that streams AI responses using search results as grounding con
 Set the following environment variables:
 
 ### General
-- `LLM_PROVIDER`: `gemini` (default) or `openrouter`.
+- `LLM_PROVIDER`: `openrouter` (default) or `gemini`.
 - `GEMINI_MAX_TOKENS`: Defaults to `500`.
 - `GEMINI_TEMPERATURE`: Defaults to `0.2`.
 
@@ -17,7 +17,7 @@ Set the following environment variables:
 
 ### OpenRouter / OpenAI / Ollama
 - `OPENROUTER_API_KEY`: Your API key.
-- `OPENROUTER_MODEL`: e.g., `meta-llama/llama-3-8b-instruct:free`.
+- `OPENROUTER_MODEL`: Defaults to `google/gemma-3-27b-it:free`.
 - `OPENROUTER_BASE_URL`: Defaults to `openrouter.ai`. (Change to `localhost:11434` for Ollama).
 
 ## Installation

gemini_flash.py

@@ -18,9 +18,9 @@ class SXNGPlugin(Plugin):
             description=gettext("Live AI search answers using Google Gemini Flash"),
             preference_section="general", 
         )
-        self.provider = os.getenv('LLM_PROVIDER', 'gemini').lower()
+        self.provider = os.getenv('LLM_PROVIDER', 'openrouter').lower()
         self.api_key = os.getenv('OPENROUTER_API_KEY') if self.provider == 'openrouter' else os.getenv('GEMINI_API_KEY')
-        self.model = os.getenv('GEMINI_MODEL', 'gemini-1.5-flash') if self.provider == 'gemini' else os.getenv('OPENROUTER_MODEL', 'google/gemini-2.0-flash-exp:free')
+        self.model = os.getenv('GEMINI_MODEL', 'gemini-1.5-flash') if self.provider == 'gemini' else os.getenv('OPENROUTER_MODEL', 'google/gemma-3-27b-it:free')
         self.max_tokens = int(os.getenv('GEMINI_MAX_TOKENS', 500))
         self.temperature = float(os.getenv('GEMINI_TEMPERATURE', 0.2))
         self.base_url = os.getenv('OPENROUTER_BASE_URL', 'openrouter.ai')