Author: Markos Symeonides

The Codex API Development Playbook: 15 Prompts for Building Production REST APIs, Authentication Systems, and Database Schemas Production-grade APIs are more than HTTP endpoints. They are carefully modeled contracts with explicit behavior, backed by resilient storage, enforced by authentication and authorization, validated with automated tests, observable in real time, and…

25 ChatGPT-5.5 Prompts for DevOps Engineers: CI/CD Pipelines, Infrastructure as Code, Monitoring Dashboards, and Incident Management DevOps engineers can use conversational assistants to accelerate architecture decisions, codify operational standards, and automate repetitive toil. The 25 prompts below are designed to be immediately actionable in real-world environments. They cover end-to-end CI/CD…

Building AI-Powered Search with GPT-5.5 Instant: From Query Understanding to Result Ranking and Personalization Modern search systems must deliver high relevance under strict latency and cost budgets, while handling ambiguous, multi-faceted natural language. GPT-5.5 Instant enables a new class of AI-powered search by combining fast intent understanding, robust constraint handling,…

How to Migrate from the OpenAI Assistants API to the Responses API: A Complete Developer Guide with Code Examples Author: Markos Symeonides, ChatGPT AI Hub Overview: This long-form tutorial explains why many teams are moving from the Assistants API to the Responses API, what architectural differences to expect, and provides…

OpenAI’s Jalapeño Chip: What In-House AI Silicon Means for Developers, API Pricing, and the Future of Inference In June 2026, OpenAI announced its first in-house AI inference chip—code-named “Jalapeño”—built in partnership with Broadcom. The move marks a strategic shift from reliance on general-purpose accelerators toward custom silicon optimized for large…