One example is the Inception V3 network (https://arxiv.org/abs/1512.00567) originally developed by a few researchers at Google. Tensorflow shared the training script for Inception V3, and offered pre-trained models to download. However, no one were able to retrain the model and achieve the same accuracy with their script. The best accuracy that were achieved by a third party (Keras in this case) is about 0.6% worse that what the original paper reported. Researchers in the CNTK team worked hard and were able to train a CNTK Inception V3 model with 5.972% top 5 error, even better than the original paper reported! The training script is shared as an example (https://github.com/Microsoft/CNTK/tree/master/Examples/Image...) and you may verify it yourself."
Ha ha, that does read like sour grapes.
Is the idea that they will somehow provoke comparison with the 800lb gorilla, even at the expense of looking juvenile? What a bunch of whiny cry babies!