refac(ui): Show rerank binding info on status card

- Remove separate ENABLE_RERANK flag in favor of rerank_binding="null"
- Change default rerank binding from "cohere" to "null" (disabled)
- Update UI to display both rerank binding and model information

env.example

@@ -87,11 +87,10 @@ ENABLE_LLM_CACHE=true
 
 #########################################################
 ### Reranking configuration
-### RERANK_BINDING type:  cohere, jina, aliyun
+### RERANK_BINDING type:  null, cohere, jina, aliyun
 ### For rerank model deployed by vLLM use cohere binding
 #########################################################
-ENABLE_RERANK=False
+RERANK_BINDING=null
-RERANK_BINDING=cohere
 ### rerank score chunk filter(set to 0.0 to keep all chunks, 0.6 or above if LLM is not strong enought)
 # MIN_RERANK_SCORE=0.0
 

lightrag/api/config.py

@@ -228,15 +228,9 @@ def parse_args() -> argparse.Namespace:
         "--rerank-binding",
         type=str,
         default=get_env_value("RERANK_BINDING", DEFAULT_RERANK_BINDING),
-        choices=["cohere", "jina", "aliyun"],
+        choices=["null", "cohere", "jina", "aliyun"],
         help=f"Rerank binding type (default: from env or {DEFAULT_RERANK_BINDING})",
     )
-    parser.add_argument(
-        "--enable-rerank",
-        action="store_true",
-        default=get_env_value("ENABLE_RERANK", False, bool),
-        help="Enable rerank functionality (default: from env or disalbed)",
-    )
 
     # Conditionally add binding options defined in binding_options module
     # This will add command line arguments for all binding options (e.g., --ollama-embedding-num_ctx)

lightrag/api/lightrag_server.py

@@ -393,7 +393,7 @@ def create_app(args):
 
     # Configure rerank function based on enable_rerank parameter
     rerank_model_func = None
-    if args.enable_rerank and args.rerank_binding:
+    if args.rerank_binding != "null":
         from lightrag.rerank import cohere_rerank, jina_rerank, ali_rerank
 
         # Map rerank binding to corresponding function
@@ -651,13 +651,11 @@ def create_app(args):
                     "workspace": args.workspace,
                     "max_graph_nodes": args.max_graph_nodes,
                     # Rerank configuration
-                    "enable_rerank": args.enable_rerank,
+                    "enable_rerank": rerank_model_func is not None,
-                    "rerank_binding": args.rerank_binding
+                    "rerank_binding": args.rerank_binding,
-                    if args.enable_rerank
+                    "rerank_model": args.rerank_model if rerank_model_func else None,
-                    else None,
-                    "rerank_model": args.rerank_model if args.enable_rerank else None,
                     "rerank_binding_host": args.rerank_binding_host
-                    if args.enable_rerank
+                    if rerank_model_func
                     else None,
                     # Environment variable status (requested configuration)
                     "summary_language": args.summary_language,

lightrag/constants.py

@@ -33,7 +33,7 @@ DEFAULT_HISTORY_TURNS = 0
 
 # Rerank configuration defaults
 DEFAULT_MIN_RERANK_SCORE = 0.0
-DEFAULT_RERANK_BINDING = "cohere"
+DEFAULT_RERANK_BINDING = "null"
 
 # File path configuration for vector and graph database(Should not be changed, used in Milvus Schema)
 DEFAULT_MAX_FILE_PATH_LENGTH = 32768

lightrag_webui/src/api/lightrag.ts

@@ -43,6 +43,7 @@ export type LightragStatus = {
     workspace?: string
     max_graph_nodes?: string
     enable_rerank?: boolean
+    rerank_binding?: string | null
     rerank_model?: string | null
     rerank_binding_host?: string | null
     summary_language: string

lightrag_webui/src/components/status/StatusCard.tsx

@@ -52,7 +52,7 @@ const StatusCard = ({ status }: { status: LightragStatus | null }) => {
             <span>{t('graphPanel.statusCard.rerankerBindingHost')}:</span>
             <span>{status.configuration.rerank_binding_host || '-'}</span>
             <span>{t('graphPanel.statusCard.rerankerModel')}:</span>
-            <span>{status.configuration.rerank_model || '-'}</span>
+            <span>{(status.configuration.rerank_binding || '-')} : {(status.configuration.rerank_model || '-')}</span>
           </div>
         </div>
       )}