diff --git a/index.py b/index.py
index 885177f..d21e053 100644
--- a/index.py
+++ b/index.py
@@ -30,7 +30,7 @@ OVERLAP = 100                                # chevauchement pour la cohérence
 INDEX_FILE = "corpus.idx"
 META_FILE = "corpus.meta.json"
 EXTENSIONS = ["*.md", "*.MD", "*.markdown", "*.txt"]
-BATCH = 128                                   # plus grand batch : encode plus vite
+BATCH = 256                                   # plus grand batch : encode plus vite
 
 # --- Fonctions utilitaires --------------------------------------------------