About the AI

The tutor is an AI, and it can be wrong. It writes the lessons and says which key points your answers covered. The app runs every step, works out your marks and sets your reviews.

Last updated October 31, 2026

You stay in charge

You choose what to learn. You pick the topic, and you accept the plan or ask for changes.
You answer in your own words. There are no options to pick from, and you say how sure you are.
You can ask your own questions while an idea is being taught.
You see why each mark is what it is. Every mark lists the key points your answer covered.
You set the pace. Pause a lesson whenever you like, and it keeps your place.
You can leave with everything. Settings downloads what you have learned, or deletes your account.

The tutor is an AI

The tutor in every lesson and review is an AI, not a person. Its words come from Anthropic Claude. Lessons call it "Tutor" and say at the start of each lesson that it is an AI. It writes fluently, and it can still be wrong. It may state something false, leave something out, or misjudge which points your answer covered. Check anything that matters against another source.

Who decides what

The AI writes

Explanations, examples and questions.
The plan of ideas for a topic.
Which key points an answer covered, and feedback on it.
Interactive pictures, with the numbers each should show.

The app decides

Which step comes next. The app runs the steps itself, so the AI cannot skip a check or declare an idea learned early.
Your mark, worked out from the key points the same way every time. The tutor cannot change it in the conversation.
When each idea comes back for review.
Whether a picture is shown as checked.

What the app checks

Pictures. The app runs each interactive picture in a sealed frame, sets it to the values the AI gave, and compares the numbers it shows. A picture that fails goes back to the AI to be fixed. One that still fails is shown with a warning, never as checked.
Marks. You see which key points were counted, so you can judge a mark yourself. The AI judges your answer without being told how sure you said you were. Afterwards, a confident answer that turns out wrong is pointed out and tested again.
Sources. A plan links only pages that its web searches really found. The app does not check that an idea matches its page.
What it cannot check: whether a fact or an explanation is true.

What is sent to Anthropic Claude

To write each reply, the app sends the AI provider:

the topic you asked to learn;
your answers, and the lesson conversation so far;
the titles of ideas you have already learned, and short notes on past mistakes, so that questions fit what you know.

It is not sent your email address, your password or your payment details.

To plan a lesson, the tutor may first search the web about your topic. Anthropic runs the searches. Its AI picks the search words from your topic, your goal, what you said you know and your answers to the starting questions. Those reach Anthropic shortened, and nothing else about you goes into the searches. The plan then links the pages its ideas rest on, and the lesson's later steps quote what those pages say.

If you dictate an answer, your browser turns your voice into text on your device. Anthropic Claude gets only the text, never your voice.

What Anthropic Claude keeps

Anthropic's commercial terms say it may not train its models on what this site sends it.

Anthropic's privacy center says it normally deletes what it is sent, and what it writes back, within 30 days. If its safety systems flag a conversation as breaking its usage policy, it may keep it for up to two years. It may keep its safety classification scores for up to seven years.

What this site keeps

The lesson conversation, your answers and the marks are stored with your account. You can go back to them, and reviews are written from them.
For each AI request, the site records the model, how much text went in and out, and what it cost, to keep your allowance. That record holds no questions or answers.
A copy of each AI reply that has been paid for is kept for up to a day. If a step fails after it, the step can run again without paying twice.
After web research for a plan, the lesson keeps what the searches found: the pages' addresses and titles, and short notes on what they say.

Deleting your account deletes your lessons, your answers and those copies. Privacy has the rest.

What it is for, and what it is not

Thought Pantheon is for your own learning.

It is not professional advice. For medical, legal, financial or safety questions, ask a qualified person.
It gives no certificates, grades or records for schools or employers. Its marks are for your practice, not for decisions about anyone.
It is a tool for learning. The tutor has no name, and it is not a companion.

Version history

October 31, 2026: the web research that may plan a lesson, with what it is sent and what is kept. Also what lessons call the tutor, and that dictated answers reach the AI as text only, never as your voice.
October 30, 2026: a first section on what you control, and the note that the tutor cannot change a mark. What the AI is sent and what is kept did not change.
October 28, 2026: first version.