Claude examples: 77 real use cases with prompts

Test six AI homework tutors on one maths problem with a 14-year-old and pick ChatGPT Study Mode

During back-to-school prep, Laura Cioffi and their 14-year-old daughter gave the same cone surface-area problem to ChatGPT Study Mode, Photomath, Socratic by Google, Claude, Brainly AI and Duolingo Math. Photomath got it wrong; Claude and Socratic were right but too academic; Brainly gave clear steps; Duolingo felt like a game. ChatGPT Study Mode asked the 14-year-old for the values, walked them through the formula and checked their understanding; the teen said it didn't make them feel 'thick'.

Check whether a noisy dishwasher is failing from a recording with Claude

A Hacker News commenter noticed a loud dishwasher at an old apartment and, unsure whether to call a technician, recorded the noise, screenshotted a spectrogram (a picture of the sound) from an app, took photos and gave them to Claude. The commenter says it matched frequencies to the machine's components and concluded it was operating normally, with the pump just louder from age and wear. A reply asked how they could know Claude was right without verifying.

File a utility complaint about low voltage with Claude

A Hacker News commenter who had circuit-level power monitoring set up at home was analyzing bills when they mentioned voltage problems to Claude. They say it put together a packet documenting brownouts down to 95v and routine dips below 110v, and helped them fill out a Board of Public Utilities complaint form. Two days later the utility, JCP&L, called; they say they still need to call back to ask for a larger transformer.

Organize a Spanish visa renewal and fill the forms with Claude and Claude in Chrome

For a Spanish visa renewal, the poster set up a bureaucracy folder with Claude, fed in the family's information, had Claude verify documents, then used Claude in Chrome to fill the online forms faster and more accurately than checking by hand.

Build a work-trip itinerary from booking emails with Claude

The day before a work trip, Claude read the poster's booking emails and organized a polished itinerary that the poster says would have taken a few hours by hand.