The sharing of language models is disclosed. In one embodiment, a language model service is provided that is shareable among handlers for input devices. The service includes a pre-processing mode of operation, and a correction mode of operation. In the former mode, the language model service is designed to receive a range within a document from a handler for an input device, and in response provide advice regarding text under consideration by the handler to insert within the document at the range, based on the context of the document within the range. In the latter mode, the language model service is designed to supervise correction over a range of text within a document, in which a number of different handlers for a number of different input devices were initially responsible for insertion of the text, such that the service solicits suggestions from the handlers, and based thereon determines text corrections. The corrections can then be made by the handlers, or by the service.