01
Consumer subscriptions
The most visible line. Individuals pay monthly for higher usage limits, access to more capable models, and features that are restricted or absent on the free tier.
This is a classic freemium structure. The free product must be good enough to build a habit and limited enough that heavy users feel the ceiling. Rate limits are not only a cost control, they are the conversion mechanism.
02
Business and enterprise plans
Sold per seat to teams and companies, with administrative controls, different data handling commitments and higher limits.
Strategically this is the more durable line. Consumer subscriptions churn when someone's interest fades; a tool embedded in a company's workflow with an annual agreement does not. It is also where the objection being answered is about data governance rather than price.
03
The API
Developers pay per token to build the models into their own products. Every AI feature you meet in some other company's app may be routed through an API like this.
It is a usage-based line with no acquisition cost per query, and it scales with someone else's product growth rather than OpenAI's own marketing.
04
Why the costs are unusual
Conventional software has a large fixed build cost and a near-zero cost per additional user. That is why software margins are famously high.
Large language models break that. Training a frontier model is enormously expensive, and then every answer costs compute too. A heavy free user is a real, recurring cost rather than a rounding error, which is why limits exist and why the economics are argued about so much.
- Training cost: very large, and repeated with each new model generation.
- Inference cost: recurring, and proportional to usage.
- Infrastructure: data centres, hardware and the power to run them.
- This is why large revenue does not automatically mean profit.
Frequently asked questions
Does ChatGPT show ads?
Advertising has not been the core of the model, which has been built on subscriptions and API usage instead. Companies do revisit monetisation, so treat any specific claim about current advertising as something to check against OpenAI's own announcements rather than an article.
Why is ChatGPT free if it costs so much to run?
Because the free tier buys three things: scale, habit and data. It builds a very large user base, some of whom convert to paid, it makes the product the default in people's minds, and usage informs development. The limits on it are what make the conversion happen.
Is OpenAI profitable?
Revenue and profitability are different questions, and the second one is where the debate sits, because training and inference costs are enormous. Any specific figure changes fast and is often reported second hand, so check OpenAI's own statements and credible financial reporting rather than relying on a number in a blog post.
How does the API pricing actually work?
It is billed by token, covering both what you send and what the model returns, with different rates per model. That is why cost control for developers is largely about choosing the smallest model that does the job and keeping prompts tight.