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Tweets by OpenAI

1. Expanding Stargate to Michigan

   OpenAI is expanding Stargate to Michigan with a new one-gigawatt campus that strengthens America’s AI infrastructure. The project will create jobs, drive investment, and support economic growth across the Midwest.

2. Introducing Aardvark: OpenAI’s agentic security researcher

   OpenAI introduces Aardvark, an AI-powered security researcher that autonomously finds, validates, and helps fix software vulnerabilities at scale. The system is in private beta—sign up to join early testing.

3. How we built OWL, the new architecture behind our ChatGPT-based browser, Atlas

   A deep dive into OWL, the new architecture powering ChatGPT Atlas—decoupling Chromium, enabling fast startup, rich UI, and agentic browsing with ChatGPT.

4. Technical Report: Performance and baseline evaluations of gpt-oss-safeguard-120b and gpt-oss-safeguard-20b

   gpt-oss-safeguard-120b and gpt-oss-safeguard-20b are two open-weight reasoning models post-trained from the gpt-oss models and trained to reason from a provided policy in order to label content under that policy. In this report, we describe gpt-oss-safeguard’s capabilities and provide our baseline safety evaluations on the gpt-oss-safeguard models, using the underlying gpt-oss models as a...

5. Introducing gpt-oss-safeguard

   OpenAI introduces gpt-oss-safeguard—open-weight reasoning models for safety classification that let developers apply and iterate on custom policies.

6. Knowledge preservation powered by ChatGPT

   Dai Nippon Printing (DNP) rolled out ChatGPT Enterprise across ten core departments to drive companywide adoption. Within three months, it achieved 95% faster patent research, 10x processing volume, 100% weekly active usage, 87% automation, and 70% knowledge reuse.

7. Doppel’s AI defense system stops attacks before they spread

   Discover how Doppel uses OpenAI’s GPT-5 and reinforcement fine-tuning (RFT) to stop deepfake and impersonation attacks before they spread, cutting analyst workloads by 80% and reducing threat response from hours to minutes.

8. The next chapter of the Microsoft–OpenAI partnership

   Microsoft and OpenAI sign a new agreement that strengthens its long-term partnership, expands innovation, and ensures responsible AI progress.

9. Built to benefit everyone

   OpenAI’s recapitalization strengthens mission-focused governance, expanding resources to ensure AI benefits everyone while advancing innovation responsibly.

10. Seizing the AI opportunity

    Meeting the demands of the Intelligence Age will require strategic investment in energy and infrastructure. OpenAI’s submission to the White House details how expanding capacity and workforce readiness can sustain U.S. leadership in AI and economic growth.