Author: Markos Symeonides

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…