updated on completion response markers for qwen3.5

setup.sh

@@ -96,6 +96,29 @@ fi
 
 echo "✅ Node $(node -v) | npm $(npm -v)"
 
+# ── 4b. Check / install FFmpeg (required for audio model support) ──
+if command -v ffmpeg &>/dev/null; then
+    echo "✅ FFmpeg found: $(ffmpeg -version 2>&1 | head -1)"
+else
+    echo "⚠️  FFmpeg not found — installing..."
+    if command -v apt-get &>/dev/null; then
+        sudo apt-get update -y > /dev/null 2>&1
+        sudo apt-get install -y ffmpeg > /dev/null 2>&1
+    elif command -v yum &>/dev/null; then
+        sudo yum install -y ffmpeg > /dev/null 2>&1
+    elif command -v brew &>/dev/null; then
+        brew install ffmpeg > /dev/null 2>&1
+    fi
+    if command -v ffmpeg &>/dev/null; then
+        echo "✅ FFmpeg installed: $(ffmpeg -version 2>&1 | head -1)"
+    else
+        echo "⚠️  Could not install FFmpeg automatically."
+        echo "   Audio model support requires FFmpeg. Install it manually:"
+        echo "   Ubuntu/Debian: sudo apt-get install ffmpeg"
+        echo "   macOS: brew install ffmpeg"
+    fi
+fi
+
 # ── 5. Build frontend ──
 echo ""
 echo "Building frontend..."

studio/backend/utils/datasets/model_mappings.py

@@ -351,6 +351,13 @@ TEMPLATE_TO_MODEL_MAPPER = {
         "unsloth/Qwen3-30B-A3B-Thinking-2507",
         "Qwen/Qwen3-30B-A3B-Thinking-2507",
     ),
+    "qwen3.5": (
+        "unsloth/Qwen3.5-0.8B",
+        "unsloth/Qwen3.5-2B",
+        "unsloth/Qwen3.5-4B",
+        "unsloth/Qwen3.5-27B",
+        "unsloth/Qwen3.5-35B-A3B",
+    ),
     "zephyr": (
         "unsloth/zephyr-sft-bnb-4bit",
         "unsloth/zephyr-sft",
@@ -424,8 +431,8 @@ TEMPLATE_TO_RESPONSES_MAPPER = {
         "response": "<|im_start|>assistant\n<think>\n",
     },
     "qwen3-instruct": {
-        "instruction": "1user\n",
-        "response": "1assistant\n",
+        "instruction": "<|im_start|>user\n",
+        "response": "<|im_start|>assistant\n",
     },
     "qwen3-thinking": {
         "instruction": "<|im_start|>user\n",