See how to use the images in CNTK Wiki.
Version 2 Images (CNTK v2.6 and above)
The following tags default to images based on ubuntu:16.04 (CPU) and nvidia/cuda:9.0-runtime-ubuntu16.04 (v.2.x GPU).
Python 3.5
GPU (NVIDIA Docker is required)
2.6-gpu-python3.5-cuda9.0-cudnn7.0,latest(/ubuntu-16.04/version_2/gpu/runtime/python-3/Dockerfile)
CPU
2.6-cpu-python3.5(/ubuntu-16.04/version_2/cpu/runtime/python-3/Dockerfile)
Python 2.7
GPU (NVIDIA Docker is required)
2.6-gpu-python2.7-cuda9.0-cudnn7.0(/ubuntu-16.04/version_2/gpu/runtime/python-2/Dockerfile)
CPU
2.6-cpu-python2.7(/ubuntu-16.04/version_2/cpu/runtime/python-2/Dockerfile)
Version 2 Images (CNTK v2.5.1)
The following tags default to images based on ubuntu:16.04 (CPU) and nvidia/cuda:9.0-runtime-ubuntu16.04 (v.2.x GPU).
Python 3.5
GPU (NVIDIA Docker is required)
2.5.1-gpu-python3.5-cuda9.0-cudnn7.0,latest(/ubuntu-16.04/version_2/gpu/runtime/python-3/Dockerfile)
CPU
2.5.1-cpu-python3.5(/ubuntu-16.04/version_2/cpu/runtime/python-3/Dockerfile)
Python 2.7
GPU (NVIDIA Docker is required)
2.5.1-gpu-python2.7-cuda9.0-cudnn7.0(/ubuntu-16.04/version_2/gpu/runtime/python-2/Dockerfile)
CPU
2.5.1-cpu-python2.7(/ubuntu-16.04/version_2/cpu/runtime/python-2/Dockerfile)
Version 2 Images (CNTK v2.5)
The following tags default to images based on ubuntu:16.04 (CPU) and nvidia/cuda:9.0-runtime-ubuntu16.04 (v.2.x GPU).
Python 3.5
GPU (NVIDIA Docker is required)
2.5-gpu-python3.5-cuda9.0-cudnn7.0,latest(/ubuntu-16.04/version_2/gpu/runtime/python-3/Dockerfile)
CPU
2.5-cpu-python3.5(/ubuntu-16.04/version_2/cpu/runtime/python-3/Dockerfile)
Python 2.7
GPU (NVIDIA Docker is required)
2.5-gpu-python2.7-cuda9.0-cudnn7.0(/ubuntu-16.04/version_2/gpu/runtime/python-2/Dockerfile)
CPU
2.5-cpu-python2.7(/ubuntu-16.04/version_2/cpu/runtime/python-2/Dockerfile)
Version 2 Images (CNTK v2.4)
The following tags default to images based on ubuntu:16.04 (CPU) and nvidia/cuda:9.0-runtime-ubuntu16.04 (v.2.x GPU).
Python 3.5
GPU (NVIDIA Docker is required)
2.4-gpu-python3.5-cuda9.0-cudnn7.0,latest(/ubuntu-16.04/version_2/gpu/runtime/python-3/Dockerfile)
1BitSGD (NVIDIA Docker is required)
2.4-1bitsgd-python3.5-cuda9.0-cudnn7.0(/ubuntu-16.04/version_2/1bitsgd/runtime/python-3/Dockerfile)
CPU
2.4-cpu-python3.5(/ubuntu-16.04/version_2/cpu/runtime/python-3/Dockerfile)
Python 2.7
GPU (NVIDIA Docker is required)
2.4-gpu-python2.7-cuda9.0-cudnn7.0(/ubuntu-16.04/version_2/gpu/runtime/python-2/Dockerfile)
1BitSGD (NVIDIA Docker is required)
2.4-1bitsgd-python2.7-cuda9.0-cudnn7.0(/ubuntu-16.04/version_2/1bitsgd/runtime/python-2/Dockerfile)
CPU
2.4-cpu-python2.7(/ubuntu-16.04/version_2/cpu/runtime/python-2/Dockerfile)
Version 2 Images (CNTK upto v2.3)
The following tags default to images based on ubuntu:14.04 (CPU), nvidia/cuda:8.0-runtime-ubuntu14.04 (v.2.x GPU) and nvidia/cuda:7.5-runtime (v.1.x GPU).
Python 3.4 and 3.5
GPU (NVIDIA Docker is required)
2.3-gpu-python3.5-cuda8.0-cudnn6.0,latest(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.2-gpu-python3.5-cuda8.0-cudnn6.0(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.1-gpu-python3.5-cuda8.0-cudnn6.0(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.0-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.0.rc3-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.0.rc2-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.0.rc1-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.0.beta15.0-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.0.beta12.0-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-3/Dockerfile)2.0.beta11.0-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/2.0.beta11.0/gpu/runtime/Dockerfile)2.0.beta10.0-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/2.0.beta10.0/gpu/runtime/Dockerfile)2.0.beta9.0-runtime-gpu-python3.5-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/2.0.beta9.0/gpu/runtime/Dockerfile)2.0.beta8.0-runtime-gpu-python3.4-cuda8.0-cudnn5.1, (/ubuntu-14.04/version_2/2.0.beta8.0/gpu/runtime/Dockerfile)2.0.beta7.0-runtime-gpu-python3.4-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/2.0.beta7.0-Ubuntu14/gpu/runtime/Dockerfile)
CPU
2.3-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.2-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.1-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.0-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.0.rc3-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.0.rc2-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.0.rc1-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.0.beta15.0-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.0.beta12.0-cpu-python3.5(/ubuntu-14.04/version_2/cpu/runtime/python-3/Dockerfile)2.0.beta11.0-cpu-python3.5(/ubuntu-14.04/version_2/2.0.beta11.0/cpu/runtime/Dockerfile)2.0.beta10.0-cpu-python3.5(/ubuntu-14.04/version_2/2.0.beta10.0/cpu/runtime/Dockerfile)2.0.beta9.0-runtime-cpu-python3.5(/ubuntu-14.04/version_2/2.0.beta9.0/cpu/runtime/Dockerfile)2.0.beta8.0-runtime-cpu-python3.4(/ubuntu-14.04/version_2/2.0.beta8.0/cpu/runtime/Dockerfile)2.0.beta7.0-runtime-cpu-python3.4(/ubuntu-14.04/version_2/2.0.beta7.0/cpu/runtime/Dockerfile)
Python 2.7
GPU (NVIDIA Docker is required)
2.3-gpu-python2.7-cuda8.0-cudnn6.0(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.2-gpu-python2.7-cuda8.0-cudnn6.0(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.1-gpu-python2.7-cuda8.0-cudnn6.0(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.0-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.0.rc3-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.0.rc2-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.0.rc1-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.0.beta15.0-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.0.beta12.0-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/gpu/runtime/python-2/Dockerfile)2.0.beta11.0-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/2.0.beta11.0/gpu/runtime/python-2.7/Dockerfile)2.0.beta10.0-gpu-python2.7-cuda8.0-cudnn5.1(/ubuntu-14.04/version_2/2.0.beta10.0/gpu/runtime/python-2.7/Dockerfile)
CPU
2.3-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.2-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.1-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.0-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.0.rc3-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.0.rc2-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.0.rc1-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.0.beta15.0-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.0.beta12.0-cpu-python2.7(/ubuntu-14.04/version_2/cpu/runtime/python-2/Dockerfile)2.0.beta11.0-cpu-python2.7(/ubuntu-14.04/version_2/2.0.beta11.0/cpu/runtime/python-2.7/Dockerfile)2.0.beta10.0-cpu-python2.7(/ubuntu-14.04/version_2/2.0.beta10.0/cpu/runtime/python-2.7/Dockerfile)
Version 1 Images
GPU (NVIDIA Docker is required)
1.7.2-runtime-gpu-cuda7.5-cudnn5.1(/ubuntu-14.04/version_1/1.7.2/gpu/runtime/Dockerfile)
CPU
1.7.2-runtime-cpu(/ubuntu-14.04/version_1/1.7.2/cpu/runtime/Dockerfile)