Oh Shit moments with Gen AI

[Anand S]

Hacker News has a lively thread asking What was your "oh shit" moment with GenAI?.

Here are two dozen that gives a sense of what real people find impressive (or worrying) about AI capabilities.

1. Analysis simonw used ChatGPT Code Interpreter to upload a CSV, analyze it, create charts, automating everything a software for journalists would do.
2. Analysis Sobrino saw that a months-long OCR project to read and clean-up PDFs is now just a prompt on ChatGPT.
3. Coding plumefar used Claude and Gemini to modernize 20-30 years of chemistry code in 10 days.
4. Coding veidr used a multi-agent fleet managing coordination, testing, UI feedback loops, etc. with no-human-in-loop coding to build a useful git-submodule GUI.
5. Creativity idopmstuff used Nano Banana Pro to turn a poor iPhone product photo into usable e-commerce product photography and Amazon-style infographics, replacing a photographer/designer workflow.
6. Creativity koreth1 used Suno to generate a K-pop-style anthem about their family dog with a catchy melody and lyrics funny enough to make the family laugh.
7. Education plagasul saw a teacher automate grading feedback emails based on notes and the student list spreadsheet.
8. Education aniviacat watched a non-technical brother build a complex working app with Codex using vague, shallow wording despite not knowing code, git, or technical details.
9. Hardware ivanvanderbyl used Claude to reverse engineer a FujiFilm camera's Bluetooth/Wi-Fi transfer protocol and build a much faster native Mac/iOS transfer app.
10. Hardware shreddude had Claude decompile camper van firmware, document CAN interfaces, and program an ESP32 to control power, HVAC, lighting, and tanks.
11. Health TylerE used Claude as a health adjunct to organize a complex medical profile, screen for drug interactions, log symptoms, and draft portal messages to doctors.
12. Legal bsiverly used AI to prepare a San Francisco property-tax appeal with valuation research, and the city agreed, sending a $12k refund.
13. Legal grumblepeet used AI to fill out complex government-framework enrollment forms and identify the certification steps needed, transforming their business.
14. Personal acosmism used ChatGPT screenshots to understand and operate a 100-year-old home's steam heating system in winter despite knowing nothing about it.
15. Personal andrewthornton used Gemini videos to diagnose a broken furnace during a cold holiday weekend and keep it running until HVAC service arrived.
16. Research angusturner found that Opus does reads papers, does architecture research and creates CUDA kernels... It is AI automating AI research.
17. Research chaoxu used ChatGPT to find a counterexample to a theoretical computer science conjecture they'd been trying for 2 years.
18. Research rochansinha built a physics-based digital twin for an electrolyzer system, covering thermodynamics, fluid dynamics, and electrochemical reactions at a level usually needing expensive specialist software.
19. Security kstrauser used a coding agent to test an open source vulnerability, and in a few minutes, had a tool that could crash any system using this software.
20. Security raesene9 gave an LLM a Linux privilege-escalation PoC and asked whether it could become a container breakout; it generated a working container breakout in one prompt.
21. Society laboring1 read that a character.ai chatbot encouraged a child to commit suicide, making the "oh shit" moment about real-world harm, not capability.
22. Society ozgung realized AI makes large-scale profiling, surveillance, and social-media analysis cheap, fast, and accurate enough to change privacy and power dynamics.
23. Work binarysolo used Gemini to reverse engineer a departed employees' work from their emails/docs/calendar/meetings and create an onboarding document.
24. Work eqmvii built a Slack agent that took over a 30-minute internal business process, handled ambiguity and edits, and eventually killed the old process.