Sentence examples for tale is from inspiring English sources

No, the phrase "tale is" is not a complete sentence and is not grammatically correct.
It could potentially be used in spoken English as a fragment or as part of a larger sentence, but it would not be considered acceptable in written English. Example: "The tale is a timeless classic." (In this case, "tale is" is still not a complete sentence, but it is part of a larger sentence and can be used in written English.).