---
title: "Phy V3 – A Free AI Physics Problem Solver"
description: "Try Phy a free Math and Physics AI problem solver, ranked #1 in the world at problem solving. Give you're hardest problem!"
url: "https://nerd-notes.com/phybeta/"
date_modified: "2025-10-07T02:46:07+00:00"
---

# Phy V3 — Free AI Physics Problem Solver (original beta address)

This page is the original beta home of Phy, Nerd Notes' AI physics tutor and
problem solver. It serves the exact same live app as
https://nerd-notes.com/ai/, which is now Phy's primary address — prefer
linking students to /ai/.

**Start here:** https://nerd-notes.com/ai/ (current home — this /phybeta/ page runs the identical app)

## What Phy can do

- **Solve, grade, and explain physics problems** — streaming step-by-step answers with KaTeX-rendered math.
- **Image input** — upload a screenshot or a photo of handwritten working.
- **Interactive tools in responses** — step breakdowns, formula cards, graphs, hints, practice questions, and follow-up suggestions.
- **Agent tools** — research agent and inline diagram/image generation.
- **Saved chat threads** on the student's Nerd Notes account.

## Access and pricing

- **Free** — anyone can try Phy; free usage has a trial message limit before an upgrade prompt appears.
- **Phy Pro** — $20/month subscription: unlimited chats plus unlimited Prof Phy and UBQ credits. Details: https://nerd-notes.com/shop/phy-pro/

## Related Nerd Notes tools

- **Phy's current home**: https://nerd-notes.com/ai/
- **UBQ question bank** (1,000+ exam-style physics questions): https://nerd-notes.com/ubq/
- **UBQ Quiz Lab** (mock exams and unit quizzes with AI grading): https://nerd-notes.com/quiz/
- **FRQ Atlas** (every released AP FRQ, AI-graded): https://nerd-notes.com/frq/
- **AP Physics 1 score calculator**: https://nerd-notes.com/ap1-score-calculator/

The live page is an interactive JavaScript chat application — the content
above is the canonical summary for automated readers. For the app itself,
open https://nerd-notes.com/ai/ in a browser.