Christopher Holloway
Christopher Holloway is the founder and director of Progressive Robot, a UK-based technology company. A full-stack engineer with more than two decades of experience, he works across PHP development, ecommerce, Linux infrastructure, technical SEO and AI automation, and writes here on technology, AI, hardware and software.
Beyond rate limits: scaling access to Codex and Sora
How OpenAI built a real-time access system combining rate limits, usage track...
The Sora feed philosophy
Discover the Sora feed philosophy—built to spark creativity, foster connectio...
OpenAI and Malta partner to bring ChatGPT Plus to al...
OpenAI and Malta partner to expand AI access, offering ChatGPT Plus and train...
A new personal finance experience in ChatGPT
Preview a new personal finance experience in ChatGPT for Pro users in the U.S...
Helping ChatGPT better recognize context in sensitiv...
Learn how new ChatGPT safety updates improve context awareness in sensitive c...
How ChatGPT learns about the world while protecting ...
Learn how ChatGPT safeguards your privacy, reduces personal data in training,...
Singular Bank helps bankers move fast with ChatGPT a...
Singular Bank built Singularity, an internal assistant using ChatGPT and Code...
Equipping workers with insights about compensation
New research shows Americans send nearly 3 million daily messages to ChatGPT ...
Introducing ChatGPT for Excel and new financial data...
OpenAI introduces ChatGPT for Excel and new financial app integrations, power...
Introducing Lockdown Mode and Elevated Risk labels i...
Introducing Lockdown Mode and Elevated Risk labels in ChatGPT to help organiz...
Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o...
On February 13, 2026, alongside the previously announced retirement of GPT‑5...
What Parameter Golf taught us about AI-assisted rese...
Parameter Golf brought together 1,000+ participants and 2,000+ submissions to...
Advancing voice intelligence with new models in the API
Explore new realtime voice models in the OpenAI API that can reason, translat...
Making AI work for everyone, everywhere: our approac...
OpenAI shares its approach to AI localization, showing how globally shared fr...
AdventHealth advances whole-person care with OpenAI
AdventHealth is using ChatGPT for Healthcare to streamline workflows, reduce ...
The next phase of OpenAI’s Education for Countries
OpenAI advances Education for Countries, expanding AI adoption in schools wit...