Question 1

Claude Max 20× vs Google AI Ultra $200 (Antigravity) for coding: which gives more building hours per dollar?

Accepted Answer

At p50 peak, Claude Max 20× returns 0.45 building h/week per $/month (90 h/week for $200/mo) and Google AI Ultra $200 (Antigravity) returns 0.23 building h/week per $/month (45 h/week for $200/mo), so Claude Max 20× gives more building hours per dollar; Claude Max 20× runs a benchmark-measured model for building (55.0/100 quality), the other does not; Google AI Ultra $200 (Antigravity) hours are guessed — treat them as a guess.

Question 2

What do Claude Max 20× and Google AI Ultra $200 (Antigravity) cost?

Accepted Answer

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

Question 3

Can Claude Max 20× and Google AI Ultra $200 (Antigravity) run as terminal CLI agents?

Accepted Answer

Claude Max 20× runs as a CLI agent. Google AI Ultra $200 (Antigravity) runs as a CLI agent. The stack builder can require at least one CLI seat.

	Claude Max 20×	Google AI Ultra $200 (Antigravity)
Price	$200/mo	$200/mo
Building h/week p50 (p10–p90), peak	90 (50–180)	45 (18–90)
Building h/week p50 (p10–p90), off-peak	—	—
Building h/week per $/mo at p50 peak	0.45	0.23
Benchmark quality /100s	Fable 5.1 (max) (with fallback) · Claude Code · 62/100 planning · Sonnet 5.5 (high) · Claude Code · 55/100 building · Sonnet 5.5 (high) · Claude Code · 55/100 admin	not measured planning · not measured building · not measured admin
Source	community	guessed
Terminal CLI agent	Yes	Yes
Clock	no published off-peak discount	limits refresh every 5h, weekly cap; no off-peak rate

Claude Max 20× vs Google AI Ultra $200 (Antigravity), side by side