diff --git a/studio/install_llama_prebuilt.py b/studio/install_llama_prebuilt.py
index e43a78baea..fd2b78d05f 100755
--- a/studio/install_llama_prebuilt.py
+++ b/studio/install_llama_prebuilt.py
@@ -2576,8 +2576,14 @@ def detect_host() -> HostInfo:
     has_rocm = False
     if is_linux:
         for _cmd, _check in (
-            # rocminfo: look for "gfxNNNN" with nonzero first digit (gfx000 is CPU agent)
-            (["rocminfo"], lambda out: bool(re.search(r"gfx[1-9]", out.lower()))),
+            # rocminfo: look for a real gfx GPU id (3-4 chars, nonzero first digit).
+            # gfx000 is the CPU agent; ROCm 6.1+ also emits generic ISA lines like
+            # "gfx11-generic" or "gfx9-4-generic" which only have 1-2 digits before
+            # the dash and must not be treated as a real GPU.
+            (
+                ["rocminfo"],
+                lambda out: bool(re.search(r"gfx[1-9][0-9a-z]{2,3}", out.lower())),
+            ),
             (["amd-smi", "list"], _amd_smi_has_gpu),
         ):
             _exe = shutil.which(_cmd[0])
diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index cf024d4076..2b9fd084d4 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -183,8 +183,14 @@ def _has_rocm_gpu() -> bool:
     import re
 
     for cmd, check_fn in (
-        # rocminfo: look for "Name: gfxNNNN" with nonzero first digit (gfx000 is the CPU agent)
-        (["rocminfo"], lambda out: bool(re.search(r"gfx[1-9]", out.lower()))),
+        # rocminfo: look for a real gfx GPU id (3-4 chars, nonzero first digit).
+        # gfx000 is the CPU agent; ROCm 6.1+ also emits generic ISA lines like
+        # "gfx11-generic" or "gfx9-4-generic" which only have 1-2 digits before
+        # the dash and must not be treated as a real GPU.
+        (
+            ["rocminfo"],
+            lambda out: bool(re.search(r"gfx[1-9][0-9a-z]{2,3}", out.lower())),
+        ),
         # amd-smi list: require "GPU: <number>" data rows, not just a header
         (
             ["amd-smi", "list"],