Use your translation keys in the list of alternatives if you want to test many alternative i18n strings, then translate the keys in the view as normal – vanity will feeds you different keys to each user.

eg. in your experiment:

 ab_test "Make people buy more foo" do alternatives ".form.two.foo", "form.two.bar", ".form.two.baz" # <= different i18n keys in your locale file metrics :record_conversion end

Then, in your view:

 <%= link_to t(ab_test(:make_people_buy_more_foo)) , buy_path %>