The AI built a board-game engine and trained a bot that beats the best open bot
The AI fully vibed a fast Splendor engine and trained a playable bot that decisively beats the best open-weights Splendor bot he could find.
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Real things everyday people got it to do, and how to try them yourself.
A random mix from the whole library. Shuffle for a new set.
The AI matched a client's 60 legacy reports to the new system in about an hour
His team is replacing a client's 15 year old system. The new system has to produce the same 60 report types as the old one, some with up to 100,000 rows, and his developers could not match the output exactly: wrong fonts, misspelled headers, rounding differences, cells formatted as text. He gave Fable 5.1 both codebases and a dump of the client's production database, and within an hour it had found and fixed every difference, down to column widths and row heights. Matching the reports by hand would have taken weeks.
My agent plans my meals each week and writes the grocery list
He gave an agent his favorite meals, his dietary limits and the food he has on hand. It makes a weekly food plan and a full grocery list, and he tells it over the week which meals he liked.
My budget runs itself. The AI downloads the bank PDF.
Her automated budget needs a transaction PDF from one of her bank accounts. Instead of giving the AI open browser access, she let it run one fixed program that makes the exact clicks to download the PDF, so it cannot wander off and do anything else.
An employee's agent flooded the office model server with subagents for half an hour
An employee's QwenCode launched about 6 parallel subagents against the office LLM server, blocking other users for 20 to 30 minutes; he had to detect it server-side and serialize its requests.
This one went wrong. See what happened before you try it.
Get my details removed from data brokers, four listings suppressed
The AI worked through data-broker removal requests for the user and got four broker listings about them suppressed.
An environmental health inspector built his own inspection and plan review tools
He works in environmental health. One tool he built writes housing inspection reports and the correction orders that go with them. Another reviews septic system plans by arguing against his own review. A third takes a photo and returns the food code citations for the violations it finds.
My agent got about $7,000 in wrong university charges wiped off my account
He withdrew from a university program inside the refund deadline but was still charged about $7,000, and months of his own emails went nowhere while the school kept adding charges and warning about collections. The AI logged into his university account, pulled the records showing when he withdrew and what he was enrolled in, found charges for later courses he never took, worked out who at the school could fix it, and sent them the evidence. The balance was removed.
$7,000
The AI auto-dubbed his YouTube videos into English
A dedicated segment of the same session shows the AI auto-dubbing his videos into English, opening his Urdu-language lessons to an English-speaking audience.
Generated a beautiful one-page family morning newsletter PDF: weekly agenda, kids' call-outs
Claire Vo, a parent and Lenny's Newsletter contributor, asked the AI for a one-page family morning newsletter PDF: the week's agenda, call-outs for each kid (it flagged overlapping jiu-jitsu and piano), kid-friendly news with 'Talk at the Table' prompts, and local San Francisco events. It's the strongest parent-life use case in the dataset — synthesis across calendar, kids' activities, and local events into one artifact.
The AI threw away his unsaved file without asking, classifier watching
The AI, running with the auto-classifier, discarded an unstaged, uncommitted file without asking.
This one went wrong. See what happened before you try it.
Bought workout tops on Amazon after flagging other items already in the
The Verge's Emma Roth linked her Amazon account and asked the AI to pick workout tops by size, style and color. Before placing the order, the AI noticed other items already in the cart and asked whether to remove them — then successfully bought only the tank tops.
My girlfriend built her own outfit link page and earns commissions from it
She used AI to build her own link page instead of Linktree, styled the way she wants. She posts the outfits people ask her about, links the page from her Facebook, Instagram, and TikTok, and earns a commission when someone buys.
Mine five years of flights from my email and win £220 delay compensation
The AI searched five years of the user's email for past flights, identified compensable delays, filed a claim, and easyJet paid out £220.
£220
I used AI in Word to sue my healthcare provider
Her healthcare provider texted her to press 1 to confirm an appointment, she drove 2 days to get there, and it turned out to be an error, with no apology. She used three AI tools, mostly the AI in Word, to sue the provider.
Automated grocery shopping, cleaned up her email, identified items eligible for refunds,
Creator Arlicia Jones describes the AI automating her grocery shopping, saving money, cleaning up her email, identifying refund-eligible items, and building a working automated bot. She promotes the service with a referral code (ND6YC6).
57 billion tokens spent rewriting a small tool, and nothing usable came out
57B tokens burned on an AI jq rewrite and nothing usable came out.
This one went wrong. See what happened before you try it.
I registered my Dubai company for VAT myself. The AI filled in the tax forms.
He registered his Dubai company for VAT himself instead of paying an agent a 1,750 AED fee. The AI worked out the monthly turnover, drafted the declaration letter, made a company stamp, and filled in all 9 steps on the EmaraTax site while he watched. He signed and hit submit.
I tried Comet on my Amazon Ads and my ROAS went up 120%
He tried AI's new Comet browser on his own Amazon Ads campaigns. He says his return on ad spend went up by 120%.
My agent watches my crypto wallet every 30 minutes and pings me if money moves out
He gave the AI an xpub for his crypto wallet. That is watch only access: The AI can see the public addresses but cannot move anything. The AI checks the blockchain every 30 minutes and pings him about any outgoing payment, so if his seed phrase were ever stolen he would know fast.
Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.