OpenAI AI Updates: August 28, 2026

1. OpenAI Publishes Randomized Study on ChatGPT and Critical Thinking in University Work

OpenAI. OpenAI shared results from a randomized study of more than 1,000 students that measured how ChatGPT, paired with critical-thinking training, affects performance on real-world university assignments. The research focused on impacts to originality and critical thinking rather than raw output, testing how guided use of the assistant changes student work. The study is part of OpenAI’s continuing effort to document educational outcomes from AI tools. Source

2. OpenAI Expands Its Presence in Brazil

OpenAI. OpenAI announced plans to deepen its engagement with developers, businesses, and communities in Brazil to broaden AI adoption across the country. The move reflects the company’s push to grow its footprint in fast-adopting international markets beyond the United States. OpenAI framed the expansion around local developer and business support rather than a specific product launch. Source

3. Codex CLI 0.150 Adds Task References, Interrupt Hooks, and Keybinding Customization

OpenAI. OpenAI shipped Codex CLI 0.150.0, introducing task referencing through ”@” mentions, a /copy command with content selection options, automatic descriptive titles for unnamed terminal tasks, clickable markdown links in the terminal, keybinding customization for permission modes, and new Interrupt hooks that trigger commands during turn interruptions. A follow-up patch, 0.150.1, fixed remote compaction to count retained images toward its token budget and trim older images as needed. The releases continue rapid iteration on the Codex command-line workflow. Source

4. ChatGPT for iOS Gains Task Search and a Reasoning-Effort Gauge

OpenAI. OpenAI updated ChatGPT for iOS with task search, a compact composer gauge for adjusting reasoning effort, a full-screen editor for longer prompts, configurable Home Screen shortcuts, and optional response annotations with comments. The release also brings performance gains for loading long threads and layout refinements that align the mobile app with desktop. The changes extend Codex and ChatGPT task management further onto mobile. Source

5. OpenAI Customer Story: loveholidays Uses Codex to Turn Non-Engineers Into Builders

OpenAI. OpenAI published a customer story describing how travel company loveholidays uses Codex to broaden software development beyond its engineering team, letting diverse teams turn ideas into working products on faster timelines. The account is positioned as evidence that Codex can lower the barrier to building internal tools. It adds to OpenAI’s growing set of enterprise Codex adoption case studies. Source

6. OpenAI Report Examines How AI Makes Learning Continuous

OpenAI. OpenAI published a report exploring how students and educators use ChatGPT to make learning continuous, with assistance that extends beyond the classroom. The report highlights usage patterns where AI support persists across study sessions rather than being confined to formal instruction. It complements OpenAI’s broader education research and its ChatGPT for Teachers program. Source