Study Simulator
Use a tool for the task in front of you, or open a course to work with the material you have already saved. Study Simulator brings both paths together.
Open Study SimulatorStudySim features
Find the way you want to learn.
Bring a question, a draft, or your class material. Start with a quick task, then keep the work you want to return to in Study Simulator.
Open StudySimStudy
Go from a source to an explanation, a recall prompt, a practice question, or an audio review.
Problem solver
Bring a problem and the context needed to solve it. Read a worked answer, inspect the steps, and use the explanation as a starting point for your own attempt.
Work through a problemVisual tutor
Turn a question or your notes into a narrated visual lesson. Follow the drawing, read the captions, and pause to work through an idea at your own pace.
Try the visual tutorGossip-style explanations
Choose a lively, conversational study analogy while keeping the explanation grounded in your material. Gossip style changes the telling, so the lesson has another way to hold your attention.
Try a gossip-style lessonFlashcards
Make question-and-answer cards from pasted notes or a supported document. Try an answer before you flip the card, then keep the deck with your course.
Make flashcardsQuizzes
Create a short quiz from your own study material. Choose your answers, check the result, and read the explanation behind each question.
Create a quizStudy guides
Start with your own material and make a focused guide you can read, review, and keep. Use the self-checks to turn the summary into an active study session.
Make a study guideStudy notes
Organize source material into readable notes and review prompts. Use a straightforward explanation or choose a supported conversational style before generating.
Create study notesCheat sheets
Make a compact reference from your study material. Bring key concepts, formulas, and common mistakes into a format you can scan while reviewing.
Make a cheat sheetStudy podcasts
Turn your material into a short narrated study review with a transcript. Listen when reading another page is not the way you want to review.
Create a study podcastWriting & research
Keep the draft in view as you revise, inspect sources, or look up a publication.
AI writing tools
Revise a passage, check grammar, review writing signals, look for web matches, or work on references. Keep your draft in view while each tool gives you its own result.
Open writing toolsNatural writing editor
Use StealthGPT Super to make a bounded natural-language rewrite. Review the wording alongside your original, with paragraph breaks and supported list structure carried through the request.
Revise a passageAI writing detector
Send a passage for an AI-likelihood report and read the result with its limitations. The score is one signal to review, not proof of who or what wrote the text.
Check writing signalsWeb similarity checker
Compare a passage against public web sources through Copyscape. Read the reported similarities and open the available source links before drawing a conclusion.
Check source similarityParaphraser
Make a bounded revision of a passage, then compare the wording with your original. Keep your intended meaning and sources in view as you edit.
Paraphrase a passageGrammar checker
Review grammar and sentence-level suggestions alongside your draft. Read the explanation before you decide whether a change belongs in your writing.
Check a draftEssay planner
Bring a topic and source notes, then make an outline you can build on. Use the plan to see the argument and decide what evidence is still missing.
Plan an essayCitation generator
Look up a DOI or publication title and use the returned metadata to draft a reference. Open the original source and check the details before submitting your work.
Find citation detailsResearch assistant
Search for scholarly publication records related to a question or topic. Use the titles, metadata, and source links to decide which originals are worth opening.
Find scholarly sourcesExam prep
Choose from the available original sample tests or create a quiz from your own notes.
Exam prep
Explore original sample tests across supported exam categories, then work through a local practice quiz with explanations. Use your own material when you want a quiz for a specific class.
Explore exam prepEveryday tools
Check a length or calculate a result locally, without using the AI generation allowance.
Student calculators
Use focused calculators for arithmetic, percentages, weighted grades, GPA, fractions, and simple linear equations. These utilities calculate locally in your browser.
Choose a calculatorWord counter
Count words, characters, sentences, and paragraphs as you edit. Set a writing goal and see estimated reading and speaking time without signing up.
Open the word counter