ChatGPT

4 Prompt Engineering Techniques Tested on 7 Models: Workshop Guide

30 min read

“Analyze this project and give recommendations” – one prompt, seven models, and GPT-5.4 produced 2,231 words of vague advice while Claude Sonnet delivered 11 complimentary phrases like “excellent budget structure.” Rewriting the prompt using a five-element structure brought all seven models down to 346–443 words, and the praise disappeared. Token savings: 41% to 79% depending on the model.

This isn’t theory. This is data from a “Prompt Engineering in Practice” workshop I ran at the IIBA conference. One project brief, four techniques, seven models, 28 runs – and $0.054 total. Cheaper than a vending machine coffee.

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4 Prompt Engineering Techniques Tested on 7 Models: Workshop Guide
ChatGPT in 2026: What Changed and Where Managers Should Start
14 min

ChatGPT in 2026: What Changed and Where Managers Should Start

By 2026, calling ChatGPT just a “chatbot” feels off. It’s a working platform with several models, search, deep research, an agent mode, image generation, Codex for development and Sora for video. And precisely because of that, newcomers find it harder to grasp the main thing: what among all of this does an ordinary manager actually need, and what still matters only to power users and tech teams.

This version of the article is updated as of April 8, 2026: I’ve removed the models and tariffs that no longer apply, double-checked launch dates and kept only the changes that truly affect day-to-day work.

33 AI Models for Managers: Why We Need Your Ratings
11 min

33 AI Models for Managers: Why We Need Your Ratings

Over the past year, 33 new AI models have appeared on the market, each claiming the title of “best manager’s assistant.” ChatGPT updated to GPT-5.2, Claude released Opus 4.5, Gemini added a new Pro version, Yandex and Sber announced further improvements, and Chinese models went OpenSource. How do you choose a tool when every one of them promises a productivity revolution? We decided to run a large-scale comparative study – but ran into a problem that may seem paradoxical.