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.
Doppel’s AI defense system stops attacks before they...
Doppel uses GPT-5 and reinforcement fine-tuning to stop deepfake and imperson...
Disrupting malicious uses of AI: October 2025
Discover how OpenAI is detecting and disrupting malicious uses of AI in our O...
Combating online child sexual exploitation & abuse
Discover how OpenAI combats online child sexual exploitation and abuse with s...
OpenAI and Anthropic share findings from a joint saf...
OpenAI and Anthropic share findings from a first-of-its-kind joint safety eva...
Estimating worst case frontier risks of open weight ...
In this paper, we study the worst-case frontier risks of releasing gpt-oss. W...
The Walt Disney Company and OpenAI reach landmark ag...
Disney and OpenAI have reached an agreement to bring more than 200 Disney, Ma...
OpenAI and NORAD team up to bring new magic to “NORA...
OpenAI and NORAD are bringing new magic to “NORAD Tracks Santa” with three Ch...
Our approach to age prediction
ChatGPT is rolling out age prediction to estimate if accounts are under or ov...
Introducing ChatGPT Go, now available worldwide
ChatGPT Go is now available worldwide, offering expanded access to GPT-5.2 In...
Introducing ChatGPT Health
ChatGPT Health is a dedicated experience that securely connects your health d...
Introducing shopping research in ChatGPT
Shopping research in ChatGPT helps you explore, compare, and discover product...
A free version of ChatGPT built for teachers
ChatGPT for Teachers is a secure workspace with education‑grade privacy and a...
GPT-5.1: A smarter, more conversational ChatGPT
We’re upgrading the GPT-5 series with warmer, more capable models and new way...
Introducing gpt-oss-safeguard
OpenAI introduces gpt-oss-safeguard—open-weight reasoning models for safety c...
Continue your ChatGPT experience beyond WhatsApp
ChatGPT will no longer be available on WhatsApp after January 15, 2026. Learn...