We Went Looking for What AI Is Bad At. We Found a Bill Instead.
Every business owner wants a map of where AI is reliable and where it is not. We built five task types — drafting to spe...
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AI & ML guides
Step-by-step how-tos, head-to-head comparisons and honest roundups — every guide worked through with current figures, then backed by a RECATOOLS calculator or AI-directory entry so you can act on it.
185 guides published
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Latest guide Aug 2026
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We Tested the Prompting Folklore — 474 Answers Later, Nothing Had Changed
Tell the model it is an expert. Offer it a $200 tip. Threaten it. Say please. Add "let's think step by step". We ran all...
Why AI Cannot Spell — What Image, Video and Voice Models Do Instead
A language model emits one symbol at a time, in order. An image model starts from noise and refines the whole canvas at...
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How to Spend Fewer Tokens — and Why That Is the Fourth Thing to Try
Every guide to controlling an AI bill opens by telling you to trim your prompt. We ran the arithmetic over all 27 models...
Do You Need Fine-Tuning? Two of the Big Three Are Taking It Away
The usual case against fine-tuning is that it is expensive. That case is wrong — a small training run costs about four d...
If You Put Engineers Inside Your Customers, Do You Still Have a Software Company?
The question every product leader has about forward deployment is financial, and almost nobody selling the model will an...
What a Forward Deployed Engineer Is, and Which Numbers to Believe
Every claim about this job travels faster than its source. The famous "729% growth" is arithmetically correct and almost...
Before You Hire Anyone to Deploy AI, Read the Report They Are Quoting
Every pitch for embedded AI engineering rests on one statistic: 95% of enterprise AI pilots fail. I downloaded the paper...
Why It Confidently Makes Things Up
We asked two AI models for five peer-reviewed studies on an obscure topic, with DOIs. One produced five — authors, journ...
Tokens and Context Windows, Explained From Zero
You are billed in a unit nobody explained. A token is a countable stand-in for a chunk of text — the word is borrowed fr...
What an LLM Actually Costs You
The rate per million tokens is the one number you cannot change, and the smallest part of the bill. Measured on 102 para...
The Chapter Everyone Skips: 孫子兵法 and the AI Capital War
Business writing quotes 知彼知己 and misquotes it — the received text reads 百戰不殆, not the 百戰百勝 that Sun Tzu expl...
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