Introducing Phy Chat

Pronounced · Fi

An AI tutor for any subject, designed for students, that adapts to your learning style. More accurate and cheaper than GPT.

Education is not a cookie cutter template. One size does not fit all.

Education is severely limited by teachers, resources, and curriculums. Schools don’t care if you are a slow learner or fast. Tutoring is costly and sometimes ineffective. So we built PHY to accelerate your learning on your terms.

Phy will be the primary tool used in modern day education. And we’re excited for you to try it. It’s fully integrated into nerd-notes’ Physics ecosystem. Say goodbye to textbooks and hello to Phy.

And Phy Chat isn’t just for Physics. High school, AP and college students use it for Chemistry, Biology, Calculus and Math, Statistics, Computer Science, Economics, History, and English and writing.

Introducing the most elite AI tutor for every subject

like studying with a tutor — but better in every way possible

Learn on your terms. Supercharge your education.

  • next gen powerful audio and visual recognition capabilities

  • Unlimited asks and unlimited answers 24/7 — for free

  • grades written responses with useful feedback and solutions

  • constantly analyzes and adapts to your learning level

Working with Phy...

is better than any tutor or teacher.

  1. Ask about anything

    Type it, paste it, or snap a photo of it: any subject, from tonight's homework to test prep.

  2. Learn it step by step

    Phy works through each problem with you from first principles, with hints when you'd rather solve it yourself.

  3. Shows, not just tells

    Graphs and custom diagrams whenever a picture explains it better.

  4. Practice, then fix what you missed

    A quick quiz or flashcard deck on what you just learned, then Phy names the misconception and re-teaches exactly that.

  5. Remembers you

    Your goals, exam dates and weak spots carry over from one session to the next.

Tried and proven learning framework supercharged with new tools like Phy.

  1. Speak

  2. Listen

  3. Learn

  4. Repeat

What Phy Chat can do

More than answers. Tools built right into the chat, for any class you take.

  • Research agents

    Spin up research agents that search the web and report back with cited sources, for lab reports, essays, and more.

  • Flashcards

    Flip decks on what you just learned. Mark each card, and Phy re-teaches the ones that need review.

  • Quizzes

    Quick multiple-choice quizzes on any topic, graded instantly, with your answers saved.

  • Step-by-step help

    Worked solutions, hints one at a time, and graphs when a plot makes it click.

  • Photo homework help

    Snap your handwritten work or a textbook page, and Phy reads it.

  • CORTEX memory

    Phy remembers your goals, strengths, and weak spots from one conversation to the next.

Hey Phy,

  • Why is the answer (a) and not (b)?
  • Break down step 4 of the problem.
  • What concepts are used in this FRQ?
  • Teach me kinematics in 30 minutes or less
  • Help me study for my momentum test
  • Visually explain how terminal velocity works
  • What's an easy way to understand oscillations
  • I'm having trouble with free body diagrams
  • How do I balance this chemical equation?
  • Walk me through this derivative step by step
  • Give me feedback on my history essay’s thesis
  • Help me get a 5 on my AP Exam

Trained on 5k+ hours of real tutoring

Phy doesn’t just know your subject. It knows how to teach it.

  • Meets you at your level

    Builds intuition first when a topic is new, and skips the ramp when you’ve already got it.

  • Teaches from first principles

    Starts from what the question asks and shows why each step comes next.

  • Hints before answers

    A gentle nudge, then the key idea, then the full walkthrough, one at a time.

  • Analogies and real examples

    One worked example with real numbers, or an analogy that sticks, instead of a wall of theory.

  • Practice picked for you

    Quizzes and flashcards aimed at your weak spots, not random drills.

  • Remembers how you learn

    CORTEX memory keeps your goals, pace and the explanations that clicked, session to session.

  • Benefits of a private education

  • For a fraction of the cost

  • Available to scholars globally