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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 15 topic areas Latest guide Aug 2026

Tagged Finance · 3 guides

All 185 AI & ML 47 Finance 27 Cybersecurity 24 Developer Tools 20 Science 10 Chinese Culture 9

Close-up of a vintage industrial control panel with multiple buttons and switches.

AI & ML 12 min

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...

Kenji Tanaka

Pub. 2 Aug

A green banker's lamp lighting an open ledger of figures on a boardroom table at night, empty chairs around it

AI & ML 11 min

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...

Jeffrey Tan

Pub. 31 Jul

A printed invoice on a desk under lamplight, its line items running off the bottom of the page.

AI & ML 10 min

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...

Kenji Tanaka

Pub. 26 Jul