Last updated October 25, 2026
How to build an AI business
Explore the models and how they work. Figure out which models match your business, so you can design your own.
Why AI needs its own business models
AI changes the economics of software businesses. Traditionally, serving one more user or customer cost you almost nothing, so free tiers were cheap and pricing per seat made sense. With AI, everything takes compute. Compute costs money. The result? A free user can be expensive, a heavy user can be unprofitable, and what the customer values is often a finished piece of work rather than access to a tool.
That's why AI pricing is moving away from seats and toward usage, outputs and outcomes, and why the metrics that matter change too. If you sell usage credits (as a proxy of tokens), you care about how fast a new user gets a first quality output. If you charge based on outcomes, you care about how often your system succeeds. Defining your business model tells you how you can make money and which numbers to watch.
How to use this guide
- Find your models. Answer the three questions below and note every model that fits. Most of you will match more than one, and will merge business models together.
- Read the diagrams. Each page shows how customers arrive, pay, expand and leave, and the loops that drive growth and cost.
- Pick your metrics. Each page has a table of the metrics to track, what each one means and why it matters.
- Draw your own model. Every business works differently and is at a different stage. Create your own business model systems diagram and figure out what to focus on.
Three questions that place your business
Each model answers three questions differently: who pays, what they pay for, and who does the work. Find the ones that match your answers.
| Model | Who pays | What they pay for | Who does the work |
|---|---|---|---|
| 01 Model and inference APIs | Companies building AI into their own products | Usage: tokens | The customer, with your model |
| 02 Consumer AI subscription | Consumers | Access, in tiers set by how much they use | The customer, with your tool |
| 03 Subscription for usage credits | Individuals and teams | Usage: a monthly pool of credits | The customer, with your tool |
| 04 Pay per job | Anyone with a job to get done | Output: one finished job, whether or not it works out | Your software |
| 05 AI add-on to existing SaaS | Customers of a product they already use | Access: an add-on, a higher tier or a credit meter | The customer, with your tool |
| 06 Outcome-priced AI agents | Businesses | Outcome: a successful result. Failed attempts are free | Your software |
| 07 Ad-supported AI | Advertisers. Users pay nothing | Reaching your users | The user, with your tool |
| 08 AI-native services | Businesses that would otherwise hire a firm | Output, priced like a firm: per job, commission or basis points | You: AI does most of it, people check it |
Companies often match multiple rows. Crosby, an AI-native law firm, charges about $400 per contract. The price makes it pay per job (model 4). The attorneys who review every document make it an AI-native service (model 8). The first describes how the customer pays. The second describes who does the work and stands behind it.
Case Study
Candor: pay per job with subscriptions mixed in.
Candor fits pay per job on all three questions above, but it's more than that. See what the subscriptions change in its diagram and scorecard.
ExploreSelling seats to businesses? A new AI product priced per seat isn't a separate model here. Its loops are classic SaaS loops, which Lean Analytics covers. What AI changes is the cost: the seat price is fixed, but the compute each seat uses isn't. Model 5 shows how seat expansion works, and model 3 shows how credits can cap heavy use.
Choosing between models
Here's how to figure out which model fits your business. Each model's page adds what to test first and which metric to watch.
| Model | Choose it when | Avoid it when |
|---|---|---|
| 01 Model and inference APIs | You sell a capability other companies build into their own products, so your usage grows as theirs does. | Your volume can't outgrow prices that fall about 10x a year, or a few customers carry most of your revenue. |
| 02 Consumer AI subscription | Individuals use the product often, and paying raises a usage limit rather than unlocking a better model. | People use your product in rare bursts, with nothing bringing them back frequently enough. Or the free tier costs more to serve than paying subscribers are worth. |
| 03 Subscription for usage credits | Usage varies a lot between customers, and they want a predictable monthly price more than a price per result. | Customers can't tell what a credit buys, or a few heavy users would burn your margin before you can set limits. |
| 04 Pay per job | Customers already buy this work one job at a time, and you can count each job. | You can't deliver every job well enough to earn the next one. The customer pays either way, so one bad output can lose them. |
| 05 AI add-on to existing SaaS | You already have paying customers, and AI clearly improves the product they use every day. | Your buyers expect AI in the base price, as 81% did in G2's interviews, or AI's compute cost would eat into your margin with no line item to cover it. |
| 06 Outcome-priced AI agents | The work is narrow and each result is easy to count, like a resolved ticket or a recovered chargeback. | Results are broad or hard to define, or you and the buyer would count them differently. |
| 07 Ad-supported AI | You have a large, habitual audience, and many of their questions show buying intent, like shopping, travel or local services. | Few of your users' questions are commercial, or ads would make users doubt the answers. |
| 08 AI-native services | Clients already hire a firm for this work, and AI can take over a growing share of each job while experts check the results. | AI can't continue to take over more of the work. If margins don't climb, the profitability might not be there. |
Go further
To learn more about how to use these business models in practice:
