DeepSpell
a Deep Learning based Speller
See https://medium.com/@majortal/deep-spelling-9ffef96a24f6#.2c9pu8nlm
Additional details:
I used this AMI to train the system: https://aws.amazon.com/marketplace/pp/B06VSPXKDX On a p2.xlarge instance (currently at $0.9 per Hour)