Frequently asked questions

You can easily take out a Premium plan directly in your Account. Choose a plan and click “Select plan”. You will then be redirected to our payment platform. If you run into any problems, just get in touch via our support chat or by email.

Mimir Mentor is based on the freemium model. You can try it for free, and many features are already available in the free version. Some features, such as the plagiarism check, are only available with a Premium subscription or a one-time purchase of a document check.

You can find more information on our pricing page or in your Account.

With your personal discount code, you can not only help your friends with their academic work but also save money together!

Here’s how it works:

1. Invite your friends:
   You can find your personal discount code on your account page under
   👉 Invite friends now. There you can simply copy it and pass it on.
2. Redeem the discount code:
   Your friends enter your code as a promo code during checkout when they take out their subscription. The code is checked automatically and the discount is deducted directly from the subscription price.
3. Benefit together:
   You and your friends each get a €16 discount (or the equivalent in your local currency). Your friends receive it directly when they take out their subscription, and you receive a credit of €16.00 (or the equivalent in your subscription currency), which is automatically deducted from your next subscription bill.

You can upgrade your subscription to a higher plan at any time!

• The amount you have already paid for your current subscription is credited to you pro rata.
• Your account is switched to the new, higher plan immediately, and you can use all the additional features straight away.
• Important: The date of your original billing cycle stays the same. This means your next regular payment will still be made on the originally agreed date.

How to upgrade:

1. Go to your Account and select the higher plan you want.
2. Follow the further steps in the checkout process.

If there are any problems, feel free to write to us in our support chat or by email.

You can view and download your entire invoice history via our payment provider:

1. To do this, log in and go to the account page.
2. Scroll all the way down to the “Further billing” section.
3. Click “View billing history” there.

You will now be redirected to your account page with our payment provider. This may take a moment.
Once you are on the page, scroll down and you can view the corresponding invoices under “Invoice history”.

You can downgrade your subscription to a smaller plan.

• Go to your Account and select the plan you want.
• The downgrade takes effect at the end of your current billing period.
• Until then, you can continue to use all the Premium features of your existing plan.

Yes. You can pause a monthly subscription for 1, 2 or 3 months. To do so, go to the account page → “Cancel subscription” and choose the pause option there.

The pause starts at the end of your paid month; until then, you can use everything as usual. During the pause, nothing is charged, you use Mimir Mentor with the features of the free plan, and your data stays saved. After that, your subscription continues automatically. We will remind you by email 7 days beforehand.

Want to come back sooner? If you click “End pause” on the account page, your plan is active again right away and you are charged the same day. You can also cancel during the pause. Your subscription then ends when the pause ends, and you can undo the cancellation until then. If you buy a different plan during the pause, it replaces your paused subscription.

You can cancel your subscription yourself at any time. To do so, go to the account page → scroll down to “Further billing” → “Cancel subscription”.
Please note: To complete the cancellation, you will then be redirected to the page of our payment provider (Stripe). Confirm the cancellation there by clicking “Cancel subscription”.

Once your cancellation has gone through, you will receive a confirmation by email. Your Premium access remains active until the end of your paid period.

Your subscription ends automatically at the end of your current billing period. You can see the date on the account page. Until then, you can continue to use all Premium features. No further payment will be taken after that.

We understand that this can easily happen. So that you have full control, you can cancel your subscription yourself at any time, with complete flexibility, and your Premium access remains active until the end of your paid period.

As this is a digital monthly subscription and you are given immediate access to all features, refunds are unfortunately not possible after the automatic renewal.

Please check whether you are logged in with the correct email address, the one you used for your purchase. You can see the status of your account on the account page.
If your account still hasn’t been activated, please contact us via the support chat or by email and tell us your account email address. We’ll be happy to look into it more closely.

Please check the following:

• Email address: Make sure you are using the correct email address, the one you registered with.
• Login method: If you originally registered with Google, Facebook or Microsoft, you also need to log in that way again (not with email and password).
• Password: If you have forgotten your password, enter your email address on the login page, click “Continue with email” and then “Forgot password?” to reset it.

If you still can’t access your account, please write to us via our support chat or by email. We’ll help you as quickly as possible!

If you registered with your email address and a password, you can change your password at any time. To do this, enter your email address on the login page, click “Continue with email” and then “Forgot password?”. You will then receive an email to set a new password.

If you registered via a provider such as Google, Facebook or Microsoft, you manage your password directly with that provider. In that case, you can’t change your password via Mimir Mentor.

You don’t need to save anything manually: every area in the Workspace saves your work automatically online in your account: your texts under “My texts” and your sources under “My literature”.

That way nothing gets lost, and after logging in you can carry on exactly where you left off, on any device. Your data stays saved until you delete it yourself or delete your account.

Yes, but your texts are stored securely and only for you in your personal account, so that your progress isn’t lost and you can keep working at any time and on any device. Only you have access to your content: it is not published, not passed on to third parties, not added to a plagiarism database and not used to train third-party AI models.

With the document check, your uploaded original document is also deleted automatically after 30 days at the latest; your scan reports remain in your account unless you delete them yourself. If you delete your account, all your content is permanently removed. So you always keep full control over your data.

Your uploaded original document is stored for a maximum of 30 days and then deleted automatically. Your scan reports and results, on the other hand, remain in your account so that you can access them again at any time, unless you delete them yourself. Your text is never stored in a public database.

Not by third parties: the external AI providers we use for the analysis do not use your texts to train their own models. Mimir Mentor itself may use data in as anonymised a form as possible to train and improve its own AI models and algorithms, as described in our privacy policy. Your texts are not published and not added to a plagiarism database.

Whether and how you need to declare Mimir Mentor in your academic work depends on your university’s rules. Many universities now have their own guidelines on using AI tools, so you should check these first or, if in doubt, ask your supervisor.

If you are required or advised to state the tools you used, a mention giving the reason for use and the version is usually sufficient, e.g.:
The software Mimir Mentor (version 0.1.1, https://mimir-mentor.com) was used for language editing.

You only need to include Mimir Mentor in your bibliography if you quote specific content from our website or web app.

Mimir Mentor is a web app that always updates itself automatically, so you are always using the latest version. If you want to state this information, for example in your work, you can find the version number in small print at the bottom right of the web app.

You can submit a deletion request for your account:

1. To do this, log in and go to the account page.
2. Scroll all the way down to the “Further billing” section.
3. Click “Delete account” there.

Once you have submitted the request, your account will be deleted within the following days. You will receive a confirmation by email once the deletion is complete. You can only delete your account if you are not on an active Premium plan.

You can also remove individual documents and scan reports without deleting your account. To find out how, see “How do I delete a document and its scan report?”.

Yes. You can enter your interests, exclusions and study details and have individual topic suggestions generated from them. This way, you find a direction that suits your work more quickly.

Yes. Mimir Mentor can develop a more specific topic from your topic idea and create a research proposal or topic guide for you as a starting point. In it, you will already find initial source suggestions, a timetable and much more.

A research proposal you generate in Mimir Mentor is visible only to you at first. After 7 days, it appears anonymously in the topic database and helps other students find their topic. Your name, description, topic idea, exclusions and specialization are never shown. What is visible is your title, the generated text with sources and your choices for field of study, assignment type and research approach. Anything you type in freely can be reflected in the text. So don’t put names or confidential information in the title or in the other fields. Research proposals you generate directly on our website are public straight away.

Yes. With a Premium plan, you can make a generated research proposal private within the first 7 days. It then stays private for good, even if you cancel, and nobody but you sees your topic.

Mimir shows the most relevant sources from the academic literature. Since many high-quality publications appear in English, the search is designed to be bilingual. This is because English is the dominant language in international science and research. The language of the sources in the results therefore cannot be changed.

However, you are more likely to find sources in another language if you enter your search query in that language. So try phrasing your search queries in the language you want in order to get more relevant sources in that language.

You can export your sources as a Word, BibTeX, EndNote, XML or text file and save them on your device:

• Open the “Literature search” area and, on the right, the “My literature” tab.
• Click the import/export icon next to the open collection, choose “Export collection” and then the format you want. The Word export gives you a ready-formatted bibliography.
• Your sources are exported and saved on your own device.

This lets you back up your bibliography or transfer it to other tools.

Good to know: Your sources are saved automatically online in your account. You only need the export if you want to use them in other tools such as Word, Zotero or Citavi, or if you also want to keep a local backup.

Mimir Mentor is designed as an interactive tool: you work on your text section by section, writing, rephrasing and correcting as you go. Then you take the result back into your paper. That is why it works best to bring individual chapters or sections into the editor, not your whole paper at once.

To check your complete paper, use the “Final check” area. There you can upload it as a Word file or PDF of up to 100,000 words, depending on your plan or one-time purchase.

How long can a text in the editor be?

• Free plan: up to 1,500 words
• All Premium plans: up to 20,000 words. This is a technical storage limit, because your text is saved automatically. Upgrading does not change it.

Yes. Mimir can rephrase texts academically and adjust sentences so that they sound clearer, more precise and better suited to academic style.

Yes. Mimir supports you, for example, with rephrasing, shortening, simplifying and academically translating texts.

ChatGPT is a general-purpose AI tool where you should pay close attention to your input (prompt) and check the output carefully. Mimir is specifically designed for academic work and gives you targeted support with style, phrasing, referencing sources and other academic requirements.

No, Mimir Mentor does not offer ghostwriting, and we distance ourselves from it.
Our AI-powered tools are designed to support you in your own academic work: with correction suggestions, plagiarism checks, help with phrasing and literature searches.
Creating complete academic papers or sections in the sense of ghostwriting is expressly not intended.
We place great importance on independent work, academic integrity and compliance with academic standards.

So you can use Mimir Mentor to improve your own texts, but responsibility for the content, originality and correct referencing always remains with you.

Mimir Mentor is designed as an interactive tool in which you can paste, edit and correct sections of your work and then copy them back into your work in improved form.

Your work, which you format in Word, for example, is best formatted there and only there. That is why the formatting options in Mimir Mentor are kept to a minimum. When you highlight text, a menu opens above the text in which you can apply this formatting.

You can have your text corrected in Mimir Mentor in two ways: either by uploading your work in the “Final check” area, or by having your text corrected directly in the live editor. This works as follows:

• In the Workspace, go to the “Proofreading” area.
• Highlight the section of text you want to correct and click “Check text”. If no text is highlighted, the correction starts automatically from the beginning of the text.
• Mimir Mentor analyses your text for spelling, grammar, academic writing style, citation style and gender-inclusive language.
• The suggestions found are shown directly in the text. Errors and suggested improvements are highlighted in colour.
• You can accept or reject the correction suggestions individually, depending on what you want to keep. You can ignore individual corrections (permanently).
• You can open the “Proofreading settings” via the cog icon on the right.

Note:
Live correction is limited to 5,000 characters per step. By clicking the arrow button that appears in the text, you can then continue the correction bit by bit.

The correction is particularly suitable for essays, seminar papers, bachelor’s dissertations, master’s dissertations and other academic texts.

Of course! An essay is also an academic paper and therefore has the same requirements; it’s basically just shorter. The length of your paper makes no difference to whether you can use Mimir Mentor.

You manage your texts on the right in the “My texts” tab, which the “Scientific writing” and “Proofreading” areas share. Use “Create new” to add a new, empty text there. There are two ways to get your content in:

1. Paste text directly:
   You can simply copy and paste your text directly into the text field and copy it back out later.
   Mimir Mentor is designed as an interactive tool, which is why we recommend adding and editing your work section by section or chapter by chapter.
2. Upload a Word file (.docx):
   Drag the file into the editor, or in “My texts” click the import/export icon next to the open text and choose “Upload Word file”. Then choose “Append text”, “Replace text” or “Document scan”.

Tip:
A full check for plagiarism and AI content is only available in the “Final check” area. There you can upload your complete paper as a Word file or PDF.

Word mainly detects spelling mistakes and simple grammar errors. Mimir also checks academic style, inappropriate phrasing, citation style and context-related weaknesses.

Yes. Mimir checks whether references are formally consistent and match the chosen citation style.

We limit the correction to sections of 5,000 characters each because we carry out a very extensive analysis of your text. This analysis is technically computation-intensive and serves to keep the quality of the correction high.
The limit also helps prevent misuse of the system and ensures stability for all users.

After the first 5,000 characters, a divider with an arrow button (“Correct following text”) appears in the text.
By clicking this button, you can easily continue the correction section by section until your entire text has been checked.

In many cases, yes. Mimir Mentor acts as a technical aid for editing and proofreading. Since the AI only optimises the language of your own ideas and does not write any new content (no ghostwriting), its use is permitted at universities.
Many universities now have their own guidelines on using AI tools, so you should check these first or, if in doubt, ask your supervisor.

Mimir Mentor combines several detection methods that go beyond classic text matching.

The text extracted from your uploaded document is compared with over 270 million academic publications and also with a huge body of publicly accessible web sources. Both literal and content similarity to the sources are taken into account. What makes it special: a specially trained AI model also detects unsupported statements and missing citations in the text.

You can find even more information in our blog article.

The Mimir document score is a rating from 0 to 100% for your entire document. 100% means: there is nothing left to flag from our checks.

What it is made up of

A wide range of factors feed into the score. We look at your document as a whole: the results of the plagiarism check, AI detection, text correction and literature check, plus the type, severity and interplay of the individual findings, as well as properties of your document itself, such as its length. So the score is not a similarity percentage but a comprehensive measurement, which does take the similarity percentage into account and shows you how far along you are with your work.

What matters here is not the mere number of findings. One serious finding weighs much more than many minor notes, and a real risk for your submission weighs more than a linguistic nuance. That is why a document with a few but critical passages can have a lower score than one with many minor correction notes.

How to improve it

Open a flagged passage, check it and fix it: add a source, mark a quotation, revise the passage or accept the correction suggestion. Then click “Mark as done” for the passage. Your score rises immediately and shows you how many percentage points you have just won back. Because serious findings carry the most weight, it pays to start at the top: work through the high-risk passages first.

The score is a working aid, not a grade, and it is no guarantee of how your university will assess your work. But it reliably shows you what you should still look at before you submit.

The percentage always belongs to a single flagged passage. So it is not a similarity percentage for your entire document; instead, it shows how closely this passage matches the most similar source we found for it. A high value means that your wording comes very close to the source, up to and including word-for-word copying. A lower value tends to indicate a rewording in which the content still clearly comes from the source.

Important: a high match is not a plagiarism verdict. If the passage is cited correctly, even a word-for-word quotation is perfectly fine. Conversely, a passage with a low match can be problematic if the reference is missing. That is why Mimir Mentor also classifies every source it finds. Under each source, you will see one of these notes:

• “This source clearly matches your passage.” A reliable match with the flagged passage.
• “This source probably matches, but not conclusively.” Similar, but no clear evidence.
• “This source is only a hint, not proof of plagiarism.” Check the passage and add a suitable source if necessary.

This classification tells you more about how reliable a match is than the percentage alone. If Mimir detects that you are already citing at that point, we also point this out so that you can check whether it really is the same source.

Here’s what to do: Open the flagged passage, compare the excerpt found with your text and then make a deliberate decision: add a source, mark it as a direct quotation or reword the passage in your own words.

There is no officially permitted percentage. Even individual passages that are not correctly referenced can be problematic, even if the overall figure seems low.

There is no fixed word limit. What matters is whether a phrase or an idea was taken from a source without being correctly referenced.

Yes, the check in the “Final check” area includes integrated AI detection. Our plagiarism check also detects unsupported statements and flags them if they are used without suitable sources. AI-generated texts can stand out this way, because there are often no references to the literature. Please note that responsibility for the use and content of your text always remains with you.

As with the plagiarism check, the value refers to a single passage, not to your entire document. It shows how strongly this passage displays language patterns that are typical of AI-generated or AI-edited texts. Part of the assessment is relative: we also check how clearly a passage stands out from the rest of your own work.

A high value is an indication, not proof of AI use. This applies to Mimir Mentor just as much as to any other detection tool on the market. Even a paragraph you wrote yourself can stand out if it is phrased in a very smooth and standardised way.

To help you interpret the value, we give the specific reasons for each classification, for example:

• Predictable word choice: many words follow very obvious patterns.
• Standard phrasing: the passage follows a common standard formulation.
• Very smooth text flow: the text seems more even than the rest of your work.
• Low linguistic variation or noticeably uniform sentence length.
• Formulaic phrase: we show you the specific phrase.
• Combination of several signals: several weaker features together lead to the classification.

Here’s what to do: Take the classification as a prompt to sharpen the content of the passage. Add your own assessment, concrete examples, subject-specific nuances or limitations, and vary the sentence structure where it supports your argument. This is worthwhile regardless of the AI question: a passage that sounds generic is usually also the weakest academically.

In the free version, documents are checked with the Basic-Scan. It shows you the number of possible plagiarism passages and AI-generated content as well as other potential errors, and uses this to calculate a risk assessment for your work. With a Premium-Scan, you can check each of these passages down to sentence level and receive matching recommendations and suggested solutions straight away. You can get the Premium-Scan with a Premium subscription or with a one-time purchase for a single document. You can find more information about our prices here.

It is currently not possible to download the reports from the document check. This applies to all available reports, such as the Plagiarism Report, the AI-Detector Report, the Correction Report or the Literature Report.

The reports are closely linked to many other features in Mimir Mentor, and our browser app is designed precisely so that you can work with your results directly and interactively. So it’s best to open your reports directly in the “Final check” area, where you have all the related features in one place.

Yes, your scan report remains available in your account after the check, even if you unlocked it with a one-time purchase or your Premium plan ends. You can reopen it at any time in the “Final check” area and continue working with your results. It stays there unless you delete it yourself.

Please note: for data protection reasons, your uploaded original document is only stored for 30 days. A new scan of the same document, for example upgrading a Basic-Scan to a Premium-Scan, is therefore only possible within these 30 days.

You can delete any checked document yourself. This does not change your quota, because a completed check still counts as a used scan. We delete the uploaded original file automatically after 30 days at the latest anyway. Your document and scan reports never end up in a plagiarism database, so the check does not create any risk of self-plagiarism.

When you delete a document, we permanently remove it together with all its scan reports (Plagiarism, AI content, Correction and Literature) and your editing progress. After that, you no longer have access to it, and we cannot restore anything. You cannot delete a document while a check is still running.

If you still want to delete it, here’s how:

1. In Mimir Mentor, open the “Final check” area. On the right, under “Your checked documents”, you will find all your documents.
2. Hover over the document and click the bin icon on the right (“Delete scan report”). On mobile, the bin icon is always visible.
3. Confirm with “Delete permanently”.

If you want to delete all your data at once, delete your account.

At present, AI scanners generally cannot reliably detect whether a text was written or revised with AI assistance such as that of Mimir Mentor. Nevertheless, there is no 100% guarantee that an AI scanner will not flag anything at all. This applies to all AI-powered tools in general.

To be as safe as possible, it’s best to keep the following points in mind:

• Always use AI-generated texts or revisions as support and inspiration, not as a complete substitute for your own work.
• Check texts again, adapt the wording to your personal writing style and add your own examples. Especially for longer passages of text.
• Cite sources conscientiously so that no unsupported statements remain that could be considered suspicious. This reduces the risk of AI scanners flagging your text to a minimum. After all, responsibility for the quality of the content, the authenticity and the correct referencing of your work always lies with you.

We recommend the following rule of thumb to every user doing academic work:

You are responsible for the content of your work. If questions about your work come up, for example from an examiner, you should be able to explain exactly where and why something is in your work. This applies regardless of whether you use aids such as software, AI or support from friends/family.

No, you don’t need to worry about self-plagiarism when using Mimir Mentor. Your text is not made public or passed on to third parties. Nor is it stored in a public database.
However, responsibility for the accuracy of the content and for correctly citing sources remains with you.

No, your work is never added to a plagiarism database, neither to Mimir Mentor’s own database nor to that of any other provider. Your texts are not used to check other users’ work. So you can have your unpublished work checked with peace of mind: it won’t show up as already “known” in a later check by your university.

Mimir Mentor is based on a freemium model, so you can try out our service in its basic form for free. You can have your document checked free of charge with the Basic-Scan for free users. This gives you an initial estimate of the minimum number of plagiarism passages we have found, as well as an initial risk assessment.

Since a complete document check is very extensive and computationally demanding, we can only offer this service with a Premium subscription or a one-time purchase. With a Premium subscription, your document is automatically checked with the Premium-Scan. With a one-time purchase, you unlock the Premium reports for a single document, without any subscription.

First, please check whether you are logged into the right account. Under “Account”, you can check whether your Premium status is active.

To use the plagiarism check, upload your document in the “Final check” area. With an active Premium plan, it is automatically checked with the Premium-Scan. If you made a one-time purchase, open exactly the document you paid for under “Your checked documents”. If it says “Upgrade required”, the check has not been unlocked yet.

If the problem still persists, feel free to get in touch with our support. We’ll help you quickly!