Grammarly wins because its moat compounds through 500M+ users generating proprietary language data that makes its models incrementally smarter, while Jasper's entire value prop is just "better prompts to existing APIs."
You can clone the brochure in an afternoon; you cannot clone the $1.5B, 1,000-person AI orchestration platform living behind the login wall.
Full teardown →You can clone the homepage in an afternoon; you cannot clone the 15-year-old grammar engine and 30-million-user distribution network hiding behind it.
Full teardown →