diff --git a/.install b/.install
index bb47ce32..3180f6e7 100755
--- a/.install
+++ b/.install
@@ -3,8 +3,8 @@
 virtualenv -p python3 ../tmp/venv
 source ../tmp/venv/bin/activate
 pip install -r <(grep -v tensorflow requirements.txt)
-pip install tensorflow-gpu==1.11.0
+pip install tf-nightly==1.12.0.dev20181004
 
-python3 util/taskcluster.py --arch gpu --target ../tmp/native_client
+python3 util/taskcluster.py --arch cuda --target ../tmp/native_client
 
 mkdir -p ../keep/summaries
diff --git a/DeepSpeech.py b/DeepSpeech.py
index 01e80996..dd4ef113 100755
--- a/DeepSpeech.py
+++ b/DeepSpeech.py
@@ -1646,6 +1646,9 @@ def train(server=None):
 
         update_progressbar.current_job_index += 1
 
+    # Initialize update_progressbar()'s child fields to safe values
+    update_progressbar.pbar = None
+
     # The MonitoredTrainingSession takes care of session initialization,
     # restoring from a checkpoint, saving to a checkpoint, and closing when done
     # or an error occurs.
diff --git a/Dockerfile b/Dockerfile
index 72aee7a7..d1503d17 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -190,7 +190,7 @@ RUN cp /tensorflow/bazel-bin/native_client/libctc_decoder_with_kenlm.so /DeepSpe
 
 # Install TensorFlow
 WORKDIR /DeepSpeech/
-RUN pip install tensorflow-gpu==1.11.0
+RUN pip install tf-nightly==1.12.0.dev20181004
 
 
 # Make DeepSpeech and install Python bindings
diff --git a/bin/benchmark_nc.py b/bin/benchmark_nc.py
index 4160ca83..3171b633 100755
--- a/bin/benchmark_nc.py
+++ b/bin/benchmark_nc.py
@@ -84,7 +84,7 @@ def get_arch_string():
         nv_rc, nv_stdout, nv_stderr = exec_command('nvidia-smi')
         nv_stdout = nv_stdout.lower().strip()
         if 'NVIDIA-SMI' in nv_stdout:
-            return 'gpu'
+            return 'cuda'
         else:
             return 'cpu'
 
diff --git a/native_client/README.md b/native_client/README.md
index 939529e9..8c1f9681 100644
--- a/native_client/README.md
+++ b/native_client/README.md
@@ -17,7 +17,7 @@ python3 util/taskcluster.py --branch "v0.2.0-alpha.6"
 
 This will download and extract `native_client.tar.xz` which includes the deepspeech binary and associated libraries as well as the custom decoder OP. `taskcluster.py` will download binaries for the architecture of the host by default, but you can override that behavior with the `--arch` parameter. See the help info with `python util/taskcluster.py -h` for more details.
 
-If you want the CUDA capable version of the binaries, use `--arch gpu`. Note that for now we don't publish CUDA-capable macOS binaries.
+If you want the CUDA capable version of the binaries, use `--arch cuda`. Note that TensorFlow does not support CUDA on macOS anymore.
 
 If you're looking to train a model, you now have a `libctc_decoder_with_kenlm.so` file that you can pass to the `--decoder_library_path` parameter of `DeepSpeech.py`.
 
diff --git a/requirements.txt b/requirements.txt
index 5df2bfb0..90a1ec49 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 pandas
 progressbar2
 python-utils
-tensorflow == 1.11.0
+tf-nightly==1.12.0.dev20181004
 numpy
 matplotlib
 scipy
diff --git a/taskcluster/cuda-build.sh b/taskcluster/cuda-build.sh
index 3ccf5769..b10ab307 100755
--- a/taskcluster/cuda-build.sh
+++ b/taskcluster/cuda-build.sh
@@ -21,8 +21,8 @@ do_bazel_build
 
 do_deepspeech_binary_build
 
-do_deepspeech_python_build rename_to_gpu
+do_deepspeech_python_build rename_to_cuda
 
-do_deepspeech_nodejs_build rename_to_gpu
+do_deepspeech_nodejs_build rename_to_cuda
 
 $(dirname "$0")/decoder-build.sh
diff --git a/taskcluster/darwin-amd64-cpu-opt.yml b/taskcluster/darwin-amd64-cpu-opt.yml
index d5fb0fb8..e549f45c 100644
--- a/taskcluster/darwin-amd64-cpu-opt.yml
+++ b/taskcluster/darwin-amd64-cpu-opt.yml
@@ -6,8 +6,8 @@ build:
     - "index.project.deepspeech.deepspeech.native_client.osx.${event.head.sha}"
     - "notify.irc-channel.${notifications.irc}.on-exception"
     - "notify.irc-channel.${notifications.irc}.on-failed"
-  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.osx/artifacts/public/home.tar.xz"
-  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.osx/artifacts/public/summarize_graph"
+  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.osx/artifacts/public/home.tar.xz"
+  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.osx/artifacts/public/summarize_graph"
   scripts:
     build: "taskcluster/host-build.sh"
     package: "taskcluster/package.sh"
diff --git a/taskcluster/linux-amd64-cpu-opt.yml b/taskcluster/linux-amd64-cpu-opt.yml
index 98c6fccf..d5cb71cf 100644
--- a/taskcluster/linux-amd64-cpu-opt.yml
+++ b/taskcluster/linux-amd64-cpu-opt.yml
@@ -14,8 +14,8 @@ build:
   system_config:
     >
       ${swig.patch_nodejs.linux}
-  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/home.tar.xz"
-  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/summarize_graph"
+  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/home.tar.xz"
+  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/summarize_graph"
   scripts:
     build: "taskcluster/host-build.sh"
     package: "taskcluster/package.sh"
diff --git a/taskcluster/linux-amd64-ctc-opt.yml b/taskcluster/linux-amd64-ctc-opt.yml
index 86b03833..93194f70 100644
--- a/taskcluster/linux-amd64-ctc-opt.yml
+++ b/taskcluster/linux-amd64-ctc-opt.yml
@@ -4,8 +4,8 @@ build:
     - "pull_request.synchronize"
     - "pull_request.reopened"
   template_file: linux-opt-base.tyml
-  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/home.tar.xz"
-  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/summarize_graph"
+  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/home.tar.xz"
+  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/summarize_graph"
   scripts:
     build: 'taskcluster/decoder-build.sh'
     package: 'taskcluster/decoder-package.sh'
diff --git a/taskcluster/linux-amd64-gpu-opt.yml b/taskcluster/linux-amd64-cuda-opt.yml
similarity index 70%
rename from taskcluster/linux-amd64-gpu-opt.yml
rename to taskcluster/linux-amd64-cuda-opt.yml
index 25aab6de..38c2a087 100644
--- a/taskcluster/linux-amd64-gpu-opt.yml
+++ b/taskcluster/linux-amd64-cuda-opt.yml
@@ -1,9 +1,9 @@
 build:
   template_file: linux-opt-base.tyml
   routes:
-    - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.gpu"
-    - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.${event.head.sha}.gpu"
-    - "index.project.deepspeech.deepspeech.native_client.gpu.${event.head.sha}"
+    - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.cuda"
+    - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.${event.head.sha}.cuda"
+    - "index.project.deepspeech.deepspeech.native_client.cuda.${event.head.sha}"
   system_setup:
     >
       ${nodejs.packages_trusty.prep_6} && ${nodejs.packages_trusty.apt_pinning}
@@ -12,8 +12,8 @@ build:
   system_config:
     >
       ${swig.patch_nodejs.linux}
-  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.gpu/artifacts/public/home.tar.xz"
-  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.gpu/artifacts/public/summarize_graph"
+  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cuda/artifacts/public/home.tar.xz"
+  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cuda/artifacts/public/summarize_graph"
   maxRunTime: 14400
   scripts:
     build: "taskcluster/cuda-build.sh"
diff --git a/taskcluster/linux-arm64-cpu-opt.yml b/taskcluster/linux-arm64-cpu-opt.yml
index 0a59f2fe..98ea1d71 100644
--- a/taskcluster/linux-arm64-cpu-opt.yml
+++ b/taskcluster/linux-arm64-cpu-opt.yml
@@ -4,8 +4,8 @@ build:
     - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.arm64"
     - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.${event.head.sha}.arm64"
     - "index.project.deepspeech.deepspeech.native_client.arm64.${event.head.sha}"
-  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.arm64/artifacts/public/home.tar.xz"
-  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/summarize_graph"
+  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.arm64/artifacts/public/home.tar.xz"
+  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/summarize_graph"
   ## multistrap 2.2.0-ubuntu1 is broken in 14.04: https://bugs.launchpad.net/ubuntu/+source/multistrap/+bug/1313787
   system_setup:
     >
diff --git a/taskcluster/linux-rpi3-cpu-opt.yml b/taskcluster/linux-rpi3-cpu-opt.yml
index bbda1c5e..ac03008b 100644
--- a/taskcluster/linux-rpi3-cpu-opt.yml
+++ b/taskcluster/linux-rpi3-cpu-opt.yml
@@ -4,8 +4,8 @@ build:
     - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.arm"
     - "index.project.deepspeech.deepspeech.native_client.${event.head.branchortag}.${event.head.sha}.arm"
     - "index.project.deepspeech.deepspeech.native_client.arm.${event.head.sha}"
-  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.arm/artifacts/public/home.tar.xz"
-  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/summarize_graph"
+  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.arm/artifacts/public/home.tar.xz"
+  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/summarize_graph"
   ## multistrap 2.2.0-ubuntu1 is broken in 14.04: https://bugs.launchpad.net/ubuntu/+source/multistrap/+bug/1313787
   system_setup:
     >
diff --git a/taskcluster/node-package.yml b/taskcluster/node-package.yml
index 8fe1f85f..9fe6d9ef 100644
--- a/taskcluster/node-package.yml
+++ b/taskcluster/node-package.yml
@@ -16,8 +16,8 @@ build:
   system_config:
     >
       ${swig.patch_nodejs.linux}
-  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/home.tar.xz"
-  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/summarize_graph"
+  tensorflow: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/home.tar.xz"
+  summarize_graph: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/summarize_graph"
   scripts:
     build: "taskcluster/node-build.sh"
     package: "taskcluster/node-package.sh"
diff --git a/taskcluster/scriptworker-task.yml b/taskcluster/scriptworker-task.yml
index a7949636..66d98ab6 100644
--- a/taskcluster/scriptworker-task.yml
+++ b/taskcluster/scriptworker-task.yml
@@ -5,7 +5,7 @@ build:
     # - "linux-arm64-cpu-opt" Aarch64 packages are refused by upload.pypi.org
     - "darwin-amd64-cpu-opt"
     - "linux-amd64-cpu-opt"
-    - "linux-amd64-gpu-opt"
+    - "linux-amd64-cuda-opt"
     - "linux-rpi3-cpu-opt"
     - "node-package"
   allowed:
@@ -18,18 +18,18 @@ build:
     python:
       - "darwin-amd64-cpu-opt"
       - "linux-amd64-cpu-opt"
-      - "linux-amd64-gpu-opt"
+      - "linux-amd64-cuda-opt"
       - "linux-rpi3-cpu-opt"
       # - "linux-arm64-cpu-opt" Aarch64 packages are refused by upload.pypi.org
     javascript:
       # GPU package
-      - "linux-amd64-gpu-opt"
+      - "linux-amd64-cuda-opt"
       # CPU package with all archs
       - "node-package"
     cpp:
       - "darwin-amd64-cpu-opt"
       - "linux-amd64-cpu-opt"
-      - "linux-amd64-gpu-opt"
+      - "linux-amd64-cuda-opt"
       - "linux-rpi3-cpu-opt"
       - "linux-arm64-cpu-opt"
   metadata:
diff --git a/taskcluster/test-armbian-opt-base.tyml b/taskcluster/test-armbian-opt-base.tyml
index 33fc3711..8456195f 100644
--- a/taskcluster/test-armbian-opt-base.tyml
+++ b/taskcluster/test-armbian-opt-base.tyml
@@ -44,7 +44,7 @@ then:
         PIP_DEFAULT_TIMEOUT: "60"
         PIP_EXTRA_INDEX_URL: "https://lissyx.github.io/deepspeech-python-wheels/"
         EXTRA_PYTHON_CONFIGURE_OPTS: "--with-fpectl" # Required by Debian Stretch
-        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-4603-gee903d1"
+        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-5460-g7cd8e9"
 
     command:
       - "/bin/bash"
diff --git a/taskcluster/test-darwin-opt-base.tyml b/taskcluster/test-darwin-opt-base.tyml
index 8c634320..a8499df3 100644
--- a/taskcluster/test-darwin-opt-base.tyml
+++ b/taskcluster/test-darwin-opt-base.tyml
@@ -39,7 +39,7 @@ then:
         DEEPSPEECH_TEST_MODEL: https://queue.taskcluster.net/v1/task/${training}/artifacts/public/output_graph.pb
         DEEPSPEECH_PROD_MODEL: https://github.com/reuben/DeepSpeech/releases/download/v0.2.0-prod/output_graph.pb
         DEEPSPEECH_PROD_MODEL_MMAP: https://github.com/reuben/DeepSpeech/releases/download/v0.2.0-prod/output_graph.pbmm
-        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-4603-gee903d1"
+        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-5460-g7cd8e9"
 
     command:
       - - "/bin/bash"
diff --git a/taskcluster/test-linux-opt-base.tyml b/taskcluster/test-linux-opt-base.tyml
index 8d75d57e..7aaf680c 100644
--- a/taskcluster/test-linux-opt-base.tyml
+++ b/taskcluster/test-linux-opt-base.tyml
@@ -44,7 +44,7 @@ then:
         DEEPSPEECH_PROD_MODEL: https://github.com/reuben/DeepSpeech/releases/download/v0.2.0-prod/output_graph.pb
         DEEPSPEECH_PROD_MODEL_MMAP: https://github.com/reuben/DeepSpeech/releases/download/v0.2.0-prod/output_graph.pbmm
         PIP_DEFAULT_TIMEOUT: "60"
-        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-4603-gee903d1"
+        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-5460-g7cd8e9"
 
     command:
       - "/bin/bash"
diff --git a/taskcluster/test-raspbian-opt-base.tyml b/taskcluster/test-raspbian-opt-base.tyml
index 2ffd35f1..b122b529 100644
--- a/taskcluster/test-raspbian-opt-base.tyml
+++ b/taskcluster/test-raspbian-opt-base.tyml
@@ -44,7 +44,7 @@ then:
         PIP_DEFAULT_TIMEOUT: "60"
         PIP_EXTRA_INDEX_URL: "https://www.piwheels.org/simple"
         EXTRA_PYTHON_CONFIGURE_OPTS: "--with-fpectl" # Required by Raspbian Stretch / PiWheels
-        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-4603-gee903d1"
+        EXPECTED_TENSORFLOW_VERSION: "TensorFlow: v1.9.0-rc2-5460-g7cd8e9"
 
     command:
       - "/bin/bash"
diff --git a/taskcluster/test-training_upstream-linux-amd64-py27mu-opt.yml b/taskcluster/test-training_upstream-linux-amd64-py27mu-opt.yml
index 9fe68a22..11f602b2 100644
--- a/taskcluster/test-training_upstream-linux-amd64-py27mu-opt.yml
+++ b/taskcluster/test-training_upstream-linux-amd64-py27mu-opt.yml
@@ -7,7 +7,7 @@ build:
       apt-get -qq -y install ${python.packages_trusty.apt}
   args:
     tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/tc-train-tests.sh 2.7.14:mu"
-  convert_graphdef: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.ee903d1b348019d28048a5581871fcd8cbb3deff.cpu/artifacts/public/convert_graphdef_memmapped_format"
+  convert_graphdef: "https://index.taskcluster.net/v1/task/project.deepspeech.tensorflow.pip.master.7cd8e9590457006d9a1be029e69d721b671f6a0c.cpu/artifacts/public/convert_graphdef_memmapped_format"
   metadata:
     name: "DeepSpeech Linux AMD64 CPU upstream training Py2.7 mu"
     description: "Training a DeepSpeech LDC93S1 model for Linux/AMD64 using upstream TensorFlow Python 2.7 mu, CPU only, optimized version"
diff --git a/tc-tests-utils.sh b/tc-tests-utils.sh
index 04b676d4..d90429ba 100755
--- a/tc-tests-utils.sh
+++ b/tc-tests-utils.sh
@@ -450,7 +450,7 @@ maybe_ssl102_py37()
 
 do_deepspeech_python_build()
 {
-  rename_to_gpu=$1
+  rename_to_cuda=$1
 
   unset PYTHON_BIN_PATH
   unset PYTHONPATH
@@ -463,8 +463,8 @@ do_deepspeech_python_build()
   mkdir -p wheels
 
   SETUP_FLAGS=""
-  if [ "${rename_to_gpu}" ]; then
-    SETUP_FLAGS="--project_name deepspeech-gpu"
+  if [ "${rename_to_cuda}" ]; then
+    SETUP_FLAGS="--project_name deepspeech-cuda"
   fi
 
   for pyver_conf in ${SUPPORTED_PYTHON_VERSIONS}; do
@@ -508,7 +508,7 @@ do_deepspeech_python_build()
 
 do_deepspeech_nodejs_build()
 {
-  rename_to_gpu=$1
+  rename_to_cuda=$1
 
   npm update && npm install node-gyp node-pre-gyp
 
@@ -523,8 +523,8 @@ do_deepspeech_nodejs_build()
       clean node-wrapper
   done;
 
-  if [ "${rename_to_gpu}" ]; then
-    make -C native_client/javascript clean npm-pack PROJECT_NAME=deepspeech-gpu
+  if [ "${rename_to_cuda}" ]; then
+    make -C native_client/javascript clean npm-pack PROJECT_NAME=deepspeech-cuda
   else
     make -C native_client/javascript clean npm-pack
   fi
diff --git a/util/taskcluster.py b/util/taskcluster.py
index 360b0117..2e71bcd5 100644
--- a/util/taskcluster.py
+++ b/util/taskcluster.py
@@ -66,7 +66,7 @@ if __name__ == '__main__':
     parser.add_argument('--target', required=True,
                         help='Where to put the native client binary files')
     parser.add_argument('--arch', required=False, default='cpu',
-                        help='Which architecture to download binaries for. "arm" for ARM 7 (32-bit), "gpu" for CUDA enabled x86_64 binaries, "cpu" for CPU-only x86_64 binaries, "osx" for CPU-only x86_64 OSX binaries. Optional ("cpu" by default)')
+                        help='Which architecture to download binaries for. "arm" for ARMv7 (RPi3/Raspbian), "arm64" for Aarch64 (LePotato/ARMbian), "cuda" for CUDA enabled x86_64 binaries, "cpu" for CPU-only x86_64 binaries, "osx" for CPU-only x86_64 OSX binaries. Optional ("cpu" by default)')
     parser.add_argument('--artifact', required=False,
                         default='native_client.tar.xz',
                         help='Name of the artifact to download. Defaults to "native_client.tar.xz"')