Bleeding edge, derived from cutting edge, has a negative connotation. Bleeding edge implies that a product or service is so new that its adoption could be harmful.
Bleeding edge refers to a product or service, usually involving technology, that is available to consumers but is so new and experimental that it has not been fully tested and, consequently, may be unreliable. Early adopters could experience design flaws and bugs that have not been observed by the developers. It is also a given that bleeding edge products may never gain mainstream acceptance. https://www.investopedia.com/terms/b/bleeding-edge.asp
Is there a way to convey this turn in French?