All Access tool

AI SaaS Profit Simulator

Model token prices, requests per user, plans and churn, and see month-by-month MRR, gross margin per plan and what your heaviest users cost you, before you build.

Per-request cost from model token prices
Margin per plan, including your heaviest user
MRR, churn and customer count over 24 months
Fixed costs and payment fees
Break-even customer count

Included with All Access

Every members-only tool, all four courses, the free Futures course, weekly live coaching and the members Discord.

Join All Access · $99/mo

Already a member? Sign in.

Cancel anytime. 30-day money-back guarantee.

Sample output

Example inputs, so you can see what the tool gives you. Members run it on their own numbers.

Sample inputs

Model: Claude Sonnet 5.5 ($2 / $10 per 1M)
Request: 6,000 input + 800 output tokens
Cost per request: $0.0200
Plans: Starter $19 (150 avg, 300 heavy) · Pro $49 (400 avg, 2,500 heavy)
Mix: 70% Starter, 30% Pro
Growth: 20 new customers in month 1, +5% a month, 5% churn
Costs: Stripe 2.9% + $0.30, $45 fixed a month

Result

Monthly profit turns positive in month 1, at about 20 customers. By month 24: $16,425 MRR and $13,088 profit a month.

Break-even customers: 3
MRR, month 24: $16,425
Profit, month 24: $13,088
Cumulative profit: $147,912

A heavy user loses you money on Pro. Cap usage on that plan.

Starter · $19/mo

79.7%

gross margin at 150 requests

AI cost (average): $3.00
Payment fees: $0.85
Profit (average): $15.15
Heavy user (300): $12.15 · 63.9%

A cap of 242 requests keeps every user at 70%+ margin.

Pro · $49/mo

80.2%

gross margin at 400 requests

AI cost (average): $8.00
Payment fees: $1.72
Profit (average): $39.28
Heavy user (2,500): −$2.72 · -5.6%

Warning: a heavy user costs $51.72 and pays $49.00.

A cap of 648 requests keeps every user at 70%+ margin.

How to improve these numbers

Cap usage. Never sell unlimited when each request costs $0.0200. Say what happens at the limit: pause, upgrade or paid overage.
Route simple work to a cheaper model. The same request on Claude Haiku 4.5 costs $0.0100. Send classification and extraction there and keep the bigger model for hard tasks, after checking quality on your test set.
Cache the fixed prefix. With half the input tokens read from the prompt cache, a request costs $0.0146. Keep the system prompt and tools identical and first in every request.
Check your heaviest users weekly. A few of them can turn a plan unprofitable even when the average looks fine.

MRR vs costs over 24 months

MRRAI, fees and fixed costs

Month 1Month 24

Month by month

Customers, revenue, costs and profit for each month of the projection
Month	Customers	MRR	AI cost	Fees	Fixed	Profit	Cumulative
1	20	$560	$90	$22	$45	$403	$403
2	40	$1,120	$180	$44	$45	$851	$1,253
3	60	$1,681	$270	$67	$45	$1,299	$2,553
4	80	$2,246	$361	$89	$45	$1,751	$4,303
5	101	$2,814	$452	$112	$45	$2,205	$6,508
6	121	$3,388	$545	$135	$45	$2,664	$9,172
7	142	$3,969	$638	$158	$45	$3,129	$12,301
8	163	$4,559	$733	$181	$45	$3,600	$15,901
9	184	$5,158	$829	$205	$45	$4,079	$19,980
10	206	$5,769	$927	$229	$45	$4,568	$24,547
11	228	$6,393	$1,027	$254	$45	$5,066	$29,614
12	251	$7,031	$1,130	$279	$45	$5,577	$35,190
13	274	$7,685	$1,235	$305	$45	$6,100	$41,290
14	298	$8,357	$1,343	$332	$45	$6,637	$47,927
15	323	$9,048	$1,454	$359	$45	$7,189	$55,116
16	349	$9,759	$1,568	$388	$45	$7,758	$62,874
17	375	$10,494	$1,687	$417	$45	$8,346	$71,220
18	402	$11,253	$1,808	$447	$45	$8,952	$80,172
19	430	$12,038	$1,935	$478	$45	$9,580	$89,752
20	459	$12,851	$2,065	$510	$45	$10,230	$99,982
21	489	$13,694	$2,201	$544	$45	$10,905	$110,887
22	520	$14,570	$2,342	$579	$45	$11,604	$122,492
23	553	$15,479	$2,488	$615	$45	$12,332	$134,823
24	587	$16,425	$2,640	$652	$45	$13,088	$147,912