He has said privately the deal was'non-binding'. He has said privately the deal was'non-binding'. What does the disappearance of a $100bn deal mean for the AI economy? Apparent collapse of Nvidia-OpenAI tie-up raises questions about circular funding and who will bear the cost of AI's expansion Did the circular AI economy just wobble? Last week it was reported that a much-discussed $100bn deal - announced last September - between Nvidia and OpenAI might not be happening at all.

AI is driving unprecedented investment for massive data centers and an energy supply that can support its huge computational appetite. One potential source of electricity for these facilities is next-generation nuclear power plants, which could be cheaper to construct and safer to operate than their predecessors. We recently held a subscriber-exclusive Roundtables discussion on hyperscale AI data centers and next-gen nuclear --two featured technologies on the MIT Technology Review 10 Breakthrough Technologies of 2026 list . You can watch the conversation back here, and don't forget to subscribe to make sure you catch future discussions as they happen. Demis Hassabis, CEO of Google DeepMind, summed it up in three words: "This is embarrassing." Hassabis was replying on X to an overexcited post by Sébastien Bubeck, a research scientist at the rival firm OpenAI, announcing that two mathematicians had used OpenAI's latest large language model, GPT-5, to find solutions to 10 unsolved problems in mathematics.

Claude also went down for many users earlier today. If you had trouble using ChatGPT today, you aren't alone. The AI chatbot experienced a partial outage for many users this afternoon, with Down Detector saw reports reaching more than 12,000 reports around the peak point of the issue today.. OpenAI issued a status update shortly after noting that elevated error rates were occurring for ChatGPT and Platform users. That problem was marked as resolved at 5:14PM ET. While the initial outage may be repaired, OpenAI does still have an active status alert up. But the end may also be in sight for that final issue, because the current statement from the company is We have applied the mitigation and are monitoring the recovering.

We are working on implementing a mitigation, OpenAI said in a status update. If you've had trouble using ChatGPT today, you aren't alone. The AI chatbot is experiencing a partial outage for many users this afternoon. Down Detector reports of issues with the service leapt from almost nothing to more than 12,000 around 3PM ET. OpenAI issued a status update noting that elevated error rates are occurring for ChatGPT and Platform users.

The performance of machine learning surrogates is critically dependent on data quality and quantity. This presents a major challenge, as high-fidelity (HF) data is often scarce and computationally expensive to acquire, while low-fidelity (LF) data is abundant but less accurate. To address this data-scarcity problem, we develop a probabilistic multi-fidelity surrogate framework based on generative transfer learning. We employ a normalizing flow (NF) generative model as the backbone, which is trained in two phases: (i) the NF is first pretrained on a large LF dataset to learn a probabilistic forward model; (ii) the pretrained model is then fine-tuned on a small HF dataset, allowing it to correct for LF-HF discrepancies via knowledge transfer. To relax the dimension-preserving constraint of standard bijective NFs, we integrate surjective (dimension-reducing) layers with standard coupling blocks. This architecture enables learned dimension reduction while preserving the ability to train with exact likelihoods. The resulting surrogate provides fast probabilistic predictions with quantified uncertainty and significantly outperforms LF-only baselines while using fewer HF evaluations. We validate the approach on a reinforced concrete slab benchmark, combining many coarse-mesh (LF) simulations with a limited set of fine-mesh (HF) simulations. The proposed model achieves probabilistic predictions with HF accuracy, demonstrating a practical path toward data-efficient, generative AI-driven surrogates for complex engineering systems. Email address: David.Barajas-Solano@pnnl.gov (David Barajas-Solano) Introduction High-fidelity (HF) computer modeling using discretization schemes such as the finite elements (FE) method provides a rigorous framework for analyzing and predicting the behavior of complex engineering systems.

Like practically every other tech company under the sun, Mozilla has been jamming generative AI features into its products . The organization has now acknowledged that not everyone wants things like chatbots in the Firefox sidebar, so it's giving you the option to turn off all of that. On February 24 (or earlier in Firefox Nightly builds), Mozilla will roll out Firefox 148, which will include an AI controls section in the desktop browser settings. From here, you'll be able to block current and future generative AI features, or only enable select tools. At the jump, you'll have the option to disable (or enable) chatbots in the sidebar, automated translations and alt text generation for PDFs.

Codex can now manage several AI assistants to complete complex tasks. Since last spring, OpenAI has offered Codex . What started life as the company's response to Claude Code is becoming something more sophisticated with the release of a new dedicated macOS app. At its most basic form, Codex is a programming agent capable of writing code for users, but now it can also manage multiple AI assistants that can work together to complete more complex tasks. OpenAI gives an example of how this could work in practice.

When you purchase through links in our articles, we may earn a small commission. Sterling Stock Picker uses OpenAI-powered AI to analyze stocks, assess risk, and help you make calmer, more informed investment decisions--and lifetime access is just $55.19. While markets don't like uncertainty, lately, there's been plenty of it. That's why Sterling Stock Picker is such a supportive tool . Designed to help investors make clearer, more informed decisions, this tool uses Finley AI, powered by OpenAI (the company behind ChatGPT), to analyze stocks and portfolios with depth and context.

NVIDIA is still planning to make a'huge' investment in OpenAI, CEO says The comment comes after a report from The Wall Street Journal suggested an earlier deal between the two companies had stalled. NVIDIA CEO Jensen Huang told reporters that the company will invest a great deal of money in OpenAI's latest funding round, according to, after on Friday reported that the two companies were rethinking a previous $100 billion deal that hasn't progressed beyond the early stages of negotiations. Speaking to reporters in Taipei this weekend, Huang reportedly said it could be the largest investment we've ever made. NVIDIA and OpenAI jointly announced in September that NVIDIA would be investing up to $100 billion in OpenAI to build 10 gigawatts of AI data centers. The companies said then that they were targeting the second half of 2026 for the first phase of the project to go online.

This change affects users who haven't upgraded to GPT-5.2, though OpenAI claims most users have already transitioned to the newer model. The retirement streamlines ChatGPT's offerings, leaving users with fewer but more advanced AI models for their interactions. You'll soon have fewer AI models to choose from when conversing with ChatGPT. OpenAI recently announced that it'll soon be discontinuing several of the AI chatbot's older GPT models. In two weeks--on Friday, February 13th--OpenAI will remove the GPT-4o, GPT-4.1,