Machine Translation in Wordfast Pro 5
To use Machine Translation, go to Edit menu > Preferences > Machine Translation, and select the MT provider you prefer.
WorldLingo is the only out-of-the-box free provider. You need to obtain an API to use the other ones (see links when you click on “Enable…”). The Microsoft Translator API is free for up to 2 million characters per month.
Tick the options “Allow all unedited segments in active document to be leveraged with MT” to use MT when there is no TM match. Your primary MT result will be automatically leveraged in the target segment.