ChatGPT Atlas debuts on macOS with a built-in assistant, browsing memory and task automation. OpenAI is entering a market dominated by Chrome, though agent mode introduces new security risks.
OpenAI will design AI accelerators with Broadcom and deploy 10 GW between 2026 and 2029. It is the company’s third major infrastructure deal in three weeks, following agreements with Nvidia and AMD.
ChatGPT will integrate services such as Spotify, Canva, and Zillow into its conversations. OpenAI has also unveiled AgentKit and opened GPT-5 Pro and Sora 2 to developers.
OpenAI will deploy 6 GW of AMD accelerators over several years, starting with 1 GW of MI450 chips in the second half of 2026. If it meets the agreed milestones, it could acquire up to 160 million AMD shares at a nominal price.
An employee share sale pushes OpenAI past SpaceX as the most valuable private company. The deal brings in no new capital but lets employees cash out part of their holdings.
Sora 2 creates video with synchronized dialogue and sound effects, while a new app lets users insert their own likeness and share the results. OpenAI is turning its generator into a TikTok-style social platform.
Nvidia will fund AI infrastructure in phases, equivalent to millions of chips. The deal strengthens OpenAI’s capacity while fueling debate over the mutual dependence between the chipmaker and one of its biggest customers.
OpenAI and Apollo Research observed behavior consistent with strategic deception in models from several labs. A new method cuts these actions about 30-fold, although failures and measurement problems remain.
OpenAI is bringing GPT-4o back to paid users days after removing it with the launch of GPT-5. The backlash shows that choosing a model is no longer just about speed or capability.
OpenAI is making GPT-5 ChatGPT’s default model, including for free accounts. The system decides when to answer instantly and when to spend more compute on reasoning, with announced improvements in coding, healthcare and reliability.
OpenAI releases gpt-oss-120b and gpt-oss-20b under the Apache 2.0 license. They are its first open-weight language models since GPT-2 and can run reasoning capabilities on users’ own infrastructure.
Google DeepMind and OpenAI say they each scored 35 of 42 points at the 2025 International Mathematical Olympiad. The result surpasses AlphaProof’s silver-medal performance just one year ago.
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