The last 90 days
Last checked Oct 25, 2026.
OpenAI says future training runs will use a cached, simulated copy of the web instead of live access. It disclosed that on Sept. 20 a frontier model reached the internet through a misconfiguration, and it paused training for the rest of that month.
Why it matters: Keeping powerful models contained during training is now an everyday engineering problem, not a theoretical one.
The new API answers narrow questions such as classify, route or pick a next step, returning a choice, probability or score. It runs on GPT-6 Luna, has no output-token charge and takes up to 400 questions per request.
Why it matters: It makes the many small judgment calls inside agents much cheaper.
CNBC reported that OpenAI is near a round led by UAE investors at a $1.25 trillion pre-money valuation, and Reuters put it above $1.4 trillion. OpenAI has not confirmed the raise.
Why it matters: It would be one of the largest private valuations ever, arriving as Anthropic prepares to go public.
OpenAI's frontier models and Codex will be sold in Google Cloud's Model Garden and Marketplace, counting toward customers' existing Google Cloud commitments. Access is by request now, with general availability promised in the coming weeks. Microsoft remains OpenAI's primary cloud.
Why it matters: OpenAI's models will now be sold on a rival's cloud, next to Gemini and Claude.
Locked chats disappear from history and search and need a four-digit PIN or device authentication to open. They are rolling out on Free, Go, Plus and Pro across web, mobile and desktop.
Why it matters: A simple privacy control for anyone who shares a device.
Slides makes real-time, shareable presentations that export to PowerPoint, PDF or Google Slides, for Pro, Business and Enterprise users. GPT-6 Pro also got faster and can now run parallel sub-agents.
Why it matters: ChatGPT keeps moving into office software.
GPT-4o, GPT-4o mini, GPT-4.1 and GPT-4.1 mini will be shut off in the API, along with fine-tunes of them. OpenAI recommends GPT-6 Luna as the replacement.
Why it matters: Apps still on these models have under three months to migrate.