How AI Tutor Pricing Works
AI tutor pricing looks simple until you try to compare two products. One charges a monthly fee. Another gives you credits. A third promises unlimited use but limits the useful features. The prices may sit next to each other, yet they are measuring different things.
The real question is not only, "How much does an AI tutor cost?" It is, "What tutoring work does that price let me do?"
A quick answer, a full lesson, a checked practice attempt, and a personalized study plan do not require the same amount of work behind the scenes. Good pricing makes those differences understandable without asking students to think about model tokens or technical infrastructure.
The common AI tutor pricing models
Most AI tutoring products use one of three models. A flat subscription gives access for a monthly or annual fee, usually with limits hidden behind phrases such as fair use. A credit plan assigns a cost to certain AI actions and deducts those credits as you study. A free tier gives limited daily or monthly use, then asks you to upgrade when you need more.
Many products combine all three. You may get a free allowance, buy a subscription with a larger monthly balance, and add one-off credits during exam season.
None of these models is automatically better. A subscription is easy to budget for. Credits can make usage clearer and allow occasional learners to pay less. A free tier lets you test whether the tutor actually teaches in a way that works for you. What matters is whether the limits are visible before you commit.
What you are actually paying for
An AI tutor does more than display stored content. When it generates a curriculum, writes a lesson for your level, reads an open-ended answer, or creates targeted remediation, it performs new AI work for that request.
That is different from opening a lesson that has already been generated. Reading saved material, looking at your progress, or editing a section title does not need a fresh tutoring response. A fair pricing model should distinguish between work that incurs a real generation cost and ordinary use of the learning workspace.
This distinction also helps explain why an AI tutor app may cost more than a folder of static lessons. The value is not simply access to information. It is the repeated cycle of planning, practice, answer checking, feedback, and adaptation.
Why credits should not mean model tokens
Technical AI services often measure usage in tokens, which are small pieces of text processed by a model. That unit is useful for developers. It is a poor unit for a student trying to decide whether they can afford another practice session.
Student-facing credits should represent recognizable actions. A learner can understand that creating a course, opening a lesson, or checking an answer uses part of a balance. They should not need to estimate how many fragments of text their question contains or wonder whether a detailed answer costs more because it happened to be longer.
Clear credits also make a usage history possible. Instead of seeing a mysterious falling balance, you can see which learning actions used it. If a product uses credits, look for an accessible balance, action costs that stay consistent, and a record of where the credits went.
What should stay free
Charging for every click makes a study tool feel like a parking meter. It also punishes the habits the product should encourage.
Once a lesson exists, reading it again should not require new AI work. Editing your curriculum, checking which sections you finished, reviewing saved feedback, and looking at progress should remain available without draining a balance. Those actions help you get more value from work that has already been done.
Free access should also be useful enough to test the tutor. A student needs more than a decorative demo. They should be able to create something, study it, and see how the product handles at least part of a real learning loop before paying.
How to compare AI tutor plans
Start with your actual study pattern. Someone who asks two questions after class needs a different plan from someone preparing for three exams and submitting several answers a day.
Check what happens when you do not use the full allowance. Do credits roll over, expire at the end of the month, or disappear when you cancel? Check whether you can buy a one-off top-up instead of moving to a larger subscription. Most importantly, check which actions consume the allowance. A generous number means little if one useful lesson takes most of it.
You should also look beyond volume. Does the tutor remember your path? Can it respond to your answer rather than simply reveal a solution? Can you return to generated lessons without paying again? Effective AI tutoring depends on those features, so they belong in the price comparison.
How Benji credits work
Benji credits pay for AI tutoring work, not raw model tokens. Curriculum planning, lesson writing, checkpoints, answer checks, and targeted practice use credits. Reading saved lessons, editing curricula, and tracking progress are free.
The current plans are designed around three levels of use:
| Plan | Price | Included credits | Best fit |
|---|---|---|---|
| Free | $0 | 120 starter credits, plus 20 daily | Trying Benji and light ongoing study |
| Learner | $12 per month | 1,500 monthly | Regular study and one substantial course |
| Intensive | $29 per month | 4,000 monthly | Several paths and frequent answer checks |
Paid monthly credits can roll over for up to one year. One-off packs are also available: 500 credits for $6, 1,500 for $15, or 5,000 for $45. Top-up credits stay valid for one year and stack on top of any plan.
The balance page shows the credits you have left and groups usage by action. Older grants that expire sooner are used first. That detail is small, but it prevents a fresh top-up from being spent while an older balance quietly expires.
Choose a plan from a real week of study
Do not choose the largest plan because you feel ambitious on day one. Start with the free allowance and use the tutor normally. Create a path, open a lesson, answer questions, and check how often you want fresh feedback.
After a week, look at what you actually used. If most of your time went into rereading saved lessons and working independently, a smaller allowance may be enough. If you are generating several lessons and checking answers throughout the week, a subscription will be easier to budget. If your usage spikes only before an exam, a top-up may fit better than a permanent upgrade.
The cheapest plan is the one that supports the study you will really do without making you ration every useful question. The most expensive plan is the one you keep paying for after you stop using it.
Transparent pricing is part of good tutoring
A student should be thinking about the next concept, not calculating the cost of every sentence. That is why good AI tutor pricing uses understandable actions, shows the balance clearly, and leaves ordinary study workspace features free.
You can try Benji free without a card, use the starter credits on a real learning path, and decide from experience whether a paid plan would improve your routine.
