To update: the latest version of the Baidu paper now claims to have gone from the 5.98% above to 4.58%.
EDIT: on 2 June, a notification (Reddit discussion) was posted; apparently the Baidu team made far more than the usual number of submissions to test how their neural network was performing on the held-out ImageNet sample. This is problematic because it means that some amount of their performance gain is probably due to overfitting (tweak a setting, submit, see if performance improves, repeat). The Google team is not accused of doing this, so probably the true state-of-the-art error rate is somewhere between the 3rd Baidu version and the last Google rate.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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