Gulfstream G400 vs Gulfstream G500 vs Gulfstream G600 vs Gulfstream G650er vs Gulfstream G700 vs Gulfstream G800

All six are long‑range business jets, but they span upper‑midsize through ultra‑long‑range categories. The Gulfstream G400 is the smallest of this group, positioned as a large‑cabin, long‑range jet with roughly mid‑to‑high‑3,000‑nm class range and typically seating about 8–12 passengers. The G500 and G600 step up into the large‑cabin, long‑range segment; the G500 is around the ~5,000‑nm class and commonly carries about 8–14, while the larger‑cabin G600 stretches to roughly the ~6,500‑nm class with a similar 10–16 typical capacity. The G650ER is an ultra‑long‑range benchmark, around the ~7,500‑nm class, usually configured for about 11–18. The newer G700 is a flagship ultra‑long‑range, large‑cabin jet at roughly the ~7,500‑nm class with among the most spacious cabins, typically 12–19. The G800 emphasizes maximum range, pushing to roughly the ~8,000+‑nm class, with similar large‑cabin seating generally in the 12–19 range depending on layout.