Author: Markos Symeonides

OpenAI’s $40 Billion Government Stake: What the US Government’s 5% Ownership Means for AI Policy, Developers, and Enterprise Customers OpenAI’s $40 Billion Government Stake: What the US Government’s 5% Ownership Means for AI Policy, Developers, and Enterprise Customers Type: News/Analysis Multiple reports indicate that OpenAI has discussed giving the United…

The Codex Application Modernization Playbook: 15 Prompts for Migrating Legacy Systems to Cloud-Native Architecture The Codex Application Modernization Playbook: 15 Prompts for Migrating Legacy Systems to Cloud-Native Architecture Type: Prompting Playbook Table of Contents Introduction Modernization Principles and Guardrails How to Use Codex Effectively in Modernization Prompt Structure Pattern Prompt…

Masterclass: 35 ChatGPT-5.5 Prompts for Startup Founders — Pitch Deck, Market Research, Competitive Analysis, Fundraising, Go-to-Market ChatGPT-5.5 Masterclass for Startup Founders — 35 Prompts to Build, Validate, and Scale Published by chatgptaihub.com — a practical masterclass that gives founders immediate, copy-pasteable prompts for Pitch Decks, Market Research, Competitive Analysis, Fundraising,…

The Complete Guide to GPT-5.5 Instant: Understanding OpenAI’s Most-Used Model and Its June 2026 Upgrade The Complete Guide to GPT-5.5 Instant: Understanding OpenAI’s Most-Used Model and Its June 2026 Upgrade Note on currency of information: This guide synthesizes community practices, model-class patterns, and publicly discussed design trends of “Instant”-style models….

End-to-End Tutorial: Using ChatGPT-5.5 for Financial Modeling (Revenue Forecasting, Scenario Analysis, DCF, Sensitivity Tables, and Investment Memos) Using ChatGPT-5.5 for Financial Modeling: A Complete Guide Build robust revenue forecasts, run bull/bear/base scenarios, generate institutional-grade investment memos, get DCF assistance, and automate sensitivity tables—augmented by ChatGPT-5.5. Table of Contents Introduction and…

OpenAI Codex Micro: The First AI Hardware Device for Developers — What We Know About the July 15 Launch OpenAI Codex Micro: The First AI Hardware Device for Developers — What We Know About the July 15 Launch Type: News/Feature | Published: July 3, 2026 OpenAI’s first foray into developer-facing…