Brooks Glycerin Max vs Brooks Ghost Max 3:
Which to Choose

These two overlap heavily, so the honest starting point is that they feel more alike than different: both are broad-based, rockered, no-plate softies built for comfort over speed, they sit within a few grams of each other in weight (both land around 11 oz / ~305–310g in a men's US 9), and both use the same 6–7mm-ish low ramp. The real gap is stack and foam. The Glycerin Max rides on one of Brooks' tallest platforms — roughly a 47mm heel / 41mm forefoot of DNA Tuned nitrogen foam that uses variable-density cells to blend softness with a bit of pop — while the Ghost Max 3 sits noticeably lower, around a 38mm heel / 31mm forefoot slab of the more traditional, comfort-tuned DNA LOFT v3. That translates directly to ride: the Glycerin Max is plusher and taller with a touch more energy return and a smoother "clip-along" feel that lets it stretch into steadier efforts, whereas the Ghost Max 3 feels closer to the ground, more planted and more muted — cradled softness rather than rebound. It shows in the ratings and intended range too: the Glycerin Max scores higher on cushioning (6/6 vs 5/6) and responsiveness (4/6 vs 3/6) and is happiest from easy pace up to marathon-comfort long runs, with a usable ceiling around 5:15–5:30 min/km; the Ghost Max 3 is a step slower in character, tuned for a 6:00–7:00 min/km conversational zone and topping out around 10K to half distance at relaxed effort, with easy long runs as its sweet spot. Both are equally stable (5/6, stable-neutral, no medial post — just a wide base and geometry), so neither has a stability edge; the decision is really taller-and-livelier versus lower-and-more-planted.