diff --git a/jean-router/app.py b/jean-router/app.py
index 1b47687..c13703d 100644
--- a/jean-router/app.py
+++ b/jean-router/app.py
@@ -554,6 +554,7 @@ def list_models():
 
     for p in presets:
         model_id = p["id"]
+        model_name = p.get("name", model_id)
 
         ctx_len = jean_ctx.get(model_id)
         caps = jean_caps.get(model_id, ["completion", "tools"])
@@ -561,12 +562,12 @@ def list_models():
             caps = list(dict.fromkeys(caps + ["thinking"]))
 
         model_info = {
-            "id": model_id,
+            "id": model_name,
             "object": "model",
             "created": int(time.time()),
             "owned_by": "jean",
             "permission": [],
-            "root": model_id,
+            "root": model_name,
             "parent": None,
         }
 
@@ -659,26 +660,30 @@ def chat_completions():
         return jsonify({"error": "model parameter required"}), 400
 
     presets = get_presets()
-    jean_preset_ids = [p["id"] for p in presets]
+    jean_preset_ids = {p["id"] for p in presets}
+    jean_name_to_id = {p.get("name", p["id"]): p["id"] for p in presets}
+    jean_names = set(jean_name_to_id.keys())
+
+    if model_id in jean_preset_ids or model_id in jean_names:
+        internal_id = jean_name_to_id.get(model_id, model_id)
 
-    if model_id in jean_preset_ids:
         if not ensure_vram_for_backend("jean"):
             return jsonify({"error": "Failed to prepare VRAM for Jean"}), 503
 
         with switch_lock:
             active = get_active_preset()
             current_active = active["id"] if active else last_active_preset
-            if current_active != model_id:
-                log.info(f"[Router] Switch Jean requis: {current_active or 'none'} → {model_id}")
-                if not switch_preset(model_id):
+            if current_active != internal_id:
+                log.info(f"[Router] Switch Jean requis: {current_active or 'none'} → {internal_id} ({model_id})")
+                if not switch_preset(internal_id):
                     return jsonify({"error": f"Failed to switch to preset {model_id}"}), 503
             else:
                 log.info(f"[Router] Preset {model_id} déjà actif (tracké)")
 
-        preset = next((p for p in presets if p["id"] == model_id), {})
+        preset = next((p for p in presets if p["id"] == internal_id), {})
         if preset.get("reasoning") == "on":
             ctx, _ = get_jean_metadata()
-            ctx_len = ctx.get(model_id, 131072)
+            ctx_len = ctx.get(internal_id, 131072)
             req_max = data.get("max_tokens", 0)
             if req_max and req_max > 0:
                 new_max = min(req_max * 2, ctx_len)