feat: Add query mode 'bypass' to bypass knowledge retrieval and directly use LLM

lightrag/api/routers/query_routes.py

@@ -22,7 +22,7 @@ class QueryRequest(BaseModel):
         description="The query text",
     )
 
-    mode: Literal["local", "global", "hybrid", "naive", "mix"] = Field(
+    mode: Literal["local", "global", "hybrid", "naive", "mix", "bypass"] = Field(
         default="hybrid",
         description="Query mode",
     )

lightrag/base.py

@@ -36,7 +36,7 @@ T = TypeVar("T")
 class QueryParam:
     """Configuration parameters for query execution in LightRAG."""
 
-    mode: Literal["local", "global", "hybrid", "naive", "mix"] = "global"
+    mode: Literal["local", "global", "hybrid", "naive", "mix", "bypass"] = "global"
     """Specifies the retrieval mode:
     - "local": Focuses on context-dependent information.
     - "global": Utilizes global knowledge.

lightrag/lightrag.py

@@ -1381,6 +1381,14 @@ class LightRAG:
                 hashing_kv=self.llm_response_cache,  # Directly use llm_response_cache
                 system_prompt=system_prompt,
             )
+        elif param.mode == "bypass":
+            # Bypass mode: directly use LLM without knowledge retrieval
+            use_llm_func = param.model_func or global_config["llm_model_func"]
+            response = await use_llm_func(
+                query.strip(),
+                system_prompt=system_prompt,
+                history_messages=param.conversation_history,
+            )
         else:
             raise ValueError(f"Unknown mode {param.mode}")
         await self._query_done()

lightrag_webui/src/api/lightrag.ts

@@ -65,8 +65,9 @@ export type LightragDocumentsScanProgress = {
  * - "global": Utilizes global knowledge.
  * - "hybrid": Combines local and global retrieval methods.
  * - "mix": Integrates knowledge graph and vector retrieval.
+ * - "bypass": Bypasses knowledge retrieval and directly uses the LLM.
  */
-export type QueryMode = 'naive' | 'local' | 'global' | 'hybrid' | 'mix'
+export type QueryMode = 'naive' | 'local' | 'global' | 'hybrid' | 'mix' | 'bypass'
 
 export type Message = {
   role: 'user' | 'assistant' | 'system'

lightrag_webui/src/components/retrieval/QuerySettings.tsx

@@ -55,6 +55,7 @@ export default function QuerySettings() {
                     <SelectItem value="global">{t('retrievePanel.querySettings.queryModeOptions.global')}</SelectItem>
                     <SelectItem value="hybrid">{t('retrievePanel.querySettings.queryModeOptions.hybrid')}</SelectItem>
                     <SelectItem value="mix">{t('retrievePanel.querySettings.queryModeOptions.mix')}</SelectItem>
+                    <SelectItem value="bypass">{t('retrievePanel.querySettings.queryModeOptions.bypass')}</SelectItem>
                   </SelectGroup>
                 </SelectContent>
               </Select>

lightrag_webui/src/locales/ar.json

@@ -302,7 +302,8 @@
         "local": "محلي",
         "global": "عالمي",
         "hybrid": "مختلط",
-        "mix": "مزيج"
+        "mix": "مزيج",
+        "bypass": "تجاوز"
       },
       "responseFormat": "تنسيق الرد",
       "responseFormatTooltip": "يحدد تنسيق الرد. أمثلة:\n• فقرات متعددة\n• فقرة واحدة\n• نقاط نقطية",

lightrag_webui/src/locales/en.json

@@ -301,7 +301,8 @@
         "local": "Local",
         "global": "Global",
         "hybrid": "Hybrid",
-        "mix": "Mix"
+        "mix": "Mix",
+        "bypass": "Bypass"
       },
       "responseFormat": "Response Format",
       "responseFormatTooltip": "Defines the response format. Examples:\n• Multiple Paragraphs\n• Single Paragraph\n• Bullet Points",

lightrag_webui/src/locales/fr.json

@@ -302,7 +302,8 @@
         "local": "Local",
         "global": "Global",
         "hybrid": "Hybride",
-        "mix": "Mixte"
+        "mix": "Mixte",
+        "bypass": "Bypass"
       },
       "responseFormat": "Format de réponse",
       "responseFormatTooltip": "Définit le format de la réponse. Exemples :\n• Plusieurs paragraphes\n• Paragraphe unique\n• Points à puces",

lightrag_webui/src/locales/zh.json

@@ -302,7 +302,8 @@
         "local": "Local",
         "global": "Global",
         "hybrid": "Hybrid",
-        "mix": "Mix"
+        "mix": "Mix",
+        "bypass": "Bypass"
       },
       "responseFormat": "响应格式",
       "responseFormatTooltip": "定义响应格式。例如：\n• 多段落\n• 单段落\n• 要点",