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Show HN: AI tutor to study and practice STEM books

https://studyjunkie.co/
3•Gregoryy•21h ago
Study Junkie is an AI tutor that turns any textbook or document you upload into an interactive course with lectures, discussion-based chat, practice assignments of various difficulty, and audio narration.

How it's different from similar tools

It seems like similar tools are mostly optimized for a quick preparation for an exam or job interview, which is not optimal if you want to really understand and practice the material.

So Study Junkie is not a "learn history of the western civilization in 30 minutes" thing. It tries not to shorted the source material and generate problems that match the difficulty of the textbook.

How to use

1. Upload any PDF, DOCX, or text file and get the structured course covering everything that is in the book.

2. Read lectures, dive deeper in an inline chat.

3. Solve problems for each lecture to ensure deep understanding.

Everything AI writes there is grounded in the source material to minimize the probability of hallucinations.

Pricing: free forever! (if you provide your own API key for LLMs)

I've initially created this just for myself to study math & physics, so it's probably best suited for STEM subjects

Familial Natural Short Sleep

https://en.wikipedia.org/wiki/Familial_natural_short_sleep
1•JKCalhoun•58s ago•0 comments

AlphaZero and MuZero

https://deepmind.google/research/alphazero-and-muzero/
1•kerim-ca•2m ago•0 comments

Monte Carlo Simulation for Projections and Estimates

https://codecube.net/2026/1/monte-carlo-cloud-costs/
1•CodeCube•4m ago•1 comments

A Deep Dive on Substrate Materials

https://dev.epicgames.com/community/learning/courses/Emv/unreal-engine-a-deep-dive-on-substrate-m...
1•mariuz•6m ago•0 comments

Show HN: I built Mike – AI motion graphics

https://www.mike.new/
1•chcardoz•9m ago•0 comments

Persistent Compromise of LLM Agents via Poisoned Experience Retrieval

https://arxiv.org/abs/2512.16962
1•PaulHoule•9m ago•0 comments

Samsung estimates nearly three-fold profit surge as memory prices skyrocket

https://www.msn.com/en-us/money/companies/samsung-electronics-estimates-nearly-three-fold-profit-...
1•ode•12m ago•0 comments

Intricuit: A touchscreen add-on for Mac laptops

https://intricuit.com
2•nvahalik•16m ago•0 comments

Z.ai Goes Public

https://twitter.com/ZixuanLi/status/2009083001716560209
1•marizluan•19m ago•0 comments

The Universal Declaration of Human Rights, Annotated

https://aliveness.kunnas.com/articles/udhr-annotated
1•ekns•21m ago•0 comments

Open Infrastructure Map

https://openinframap.org
2•efskap•21m ago•1 comments

Show HN: IceRaidsNearMe – Real-time, crowdsourced map of immigration enforcement

https://iceraidsnearme.com/
9•todaycompanies•22m ago•0 comments

"I put AI in a security camera"

https://twitter.com/shiloh_wwe/status/2009058171332251862
2•jscottmiller•23m ago•0 comments

Why Trump Took over Venezuela and What Countries Are Next on the List [video]

https://www.youtube.com/watch?v=sau-MwjmHZk
1•keepamovin•23m ago•0 comments

Chase to become new issuer of Apple Card

https://www.jpmorganchase.com/ir/news/2026/chase-to-become-new-issuer-of-apple-card
1•vismit2000•23m ago•0 comments

A history of AI in two line paper summaries (part two)

https://xquant.substack.com/p/what-if-we-simply-a-history-of-ai-20c
1•nb_quant•25m ago•0 comments

The Resonant Computing Manifesto

https://resonantcomputing.org/
1•pabs3•26m ago•0 comments

Duck Punch an SDK until it quacks like an MCP Server

https://dwell-time.medium.com/duck-punch-an-sdk-until-it-quacks-like-an-mcp-server-a5cb3b834ce9
1•dandye•26m ago•1 comments

The Return of Gusto

https://apewoodx.substack.com/p/the-return-of-gusto
1•aratahikaru5•26m ago•0 comments

Jeffrey Sachs at UN Exposes US Regime Change in Venezuela [video]

https://www.youtube.com/watch?v=I110EFJLw4U
1•stopbulying•27m ago•2 comments

Varnish and Virtue

https://literaryreview.co.uk/varnish-virtue
1•prismatic•28m ago•0 comments

Show HN: Enriched HN, LLM-powered topic filtering for Hacker News

1•mjshashank•29m ago•0 comments

Vaultwarden – Unofficial Bitwarden compatible server, formerly bitwarden_rs

https://github.com/dani-garcia/vaultwarden
1•petethomas•32m ago•0 comments

Chase is taking over Apple's credit card

https://www.theverge.com/news/858170/apple-card-jpmorgan-chase-sachs
1•didip•33m ago•0 comments

SnappyJSON – JSON Viewer and Editor

https://snappyjson.farfarawaylabs.com
1•Brajeshwar•35m ago•0 comments

I got paid minimum wage to solve an impossible problem

https://tiespetersen.substack.com/p/i-got-paid-minimum-wage-to-solve
3•self•37m ago•0 comments

Claude Code 2.1.0 Released

https://github.com/anthropics/claude-code/blob/f34e2535b4fcf5fcc6cb0b566111c588b04873ee/CHANGELOG.md
3•kerim-ca•37m ago•0 comments

The AI Econ Seminar

https://cameron.stream/blog/econ-seminar/
1•forthwall•43m ago•0 comments

CSIS: What Just Happened in Venezuela? and What Comes Next?

https://www.youtube.com/watch?v=Fp24V1Ygn04
1•stopbulying•47m ago•1 comments

Greg and the Eternal Brunch – A Philosophy Fairy Story

https://lagomor.ph/2025/02/greg-the-eternal-brunch/
1•ChilledTonic•47m ago•0 comments