Question 1

GLM Max vs X Ultra + Build for coding: which gives more building hours per dollar?

Accepted Answer

At p50 peak, GLM Max returns 0.27 building h/week per $/month (45 h/week for $168/mo) and X Ultra + Build returns 0.18 building h/week per $/month (36 h/week for $200/mo), so GLM Max gives more building hours per dollar; on building benchmark quality X Ultra + Build runs Grok 4.7 (xhigh) · Grok Build · 56/100 and GLM Max runs GLM-5.3 · Opencode · 54/100; X Ultra + Build hours are guessed — treat them as a guess.

Question 2

What do GLM Max and X Ultra + Build cost?

Accepted Answer

$168/mo and $200/mo. Comparisons only pair plans within 1.5× of each other on price.

Question 3

Which of the two has an off-peak rate?

Accepted Answer

GLM Max does — peak Mon–Fri 07:00–11:00 London, building 45 h/week p50 peak → 90 h/week p50 off-peak. X Ultra + Build does not (shared weekly pool, no off-peak rate).

	GLM Max	X Ultra + Build
Price	$168/mo	$200/mo
Building h/week p50 (p10–p90), peak	45 (24–90)	36 (14–60)
Building h/week p50 (p10–p90), off-peak	90 (48–180)	—
Building h/week per $/mo at p50 peak	0.27	0.18
Benchmark quality /100s	GLM-5.3 · Opencode · 54/100 planning · GLM-5.3 · Opencode · 54/100 building · GLM-5.3 · Opencode · 54/100 admin	Grok 4.7 (xhigh) · Grok Build · 56/100 planning · Grok 4.7 (xhigh) · Grok Build · 56/100 building · Grok 4.7 (xhigh) · Grok Build · 56/100 admin
Source	official-clock + lived	guessed
Terminal CLI agent	Yes	Yes
Clock	peak Mon–Fri 07:00–11:00 London	shared weekly pool, no off-peak rate

GLM Max vs X Ultra + Build, side by side