Grok 4.1 Fast’s compelling dev access and Agent Tools API overshadowed by Musk glazing

Elon Musk’s frontier generative AI startup xAI formally opened developer access to its Grok 4.1 Fast models last night and introduced a new Agent Tools API—but the technical milestones were immediately subverted by a wave of public ridicule about Grok’s responses on the social network X over the last few days praising its creator Musk …

Machine learning algorithm rapidly reconstructs 3D images from X-ray data

Soon, researchers may be able to create movies of their favorite protein or virus better and faster than ever before. Researchers at the Department of Energy’s SLAC National Accelerator Laboratory have pioneered a new machine learning method—called X-RAI (X-Ray single particle imaging with Amortized Inference)—that can “look” at millions of X-ray laser-generated images and create …

OpenAI debuts GPT‑5.1-Codex-Max coding model and it already completed a 24-hour task internally

OpenAI has introduced GPT‑5.1-Codex-Max, a new frontier agentic coding model now available in its Codex developer environment. The release marks a significant step forward in AI-assisted software engineering, offering improved long-horizon reasoning, efficiency, and real-time interactive capabilities. GPT‑5.1-Codex-Max will now replace GPT‑5.1-Codex as the default model across Codex-integrated surfaces. The new model is designed to …

Musk’s xAI launches Grok 4.1 with lower hallucination rate on the web and apps — no API access (for now)

In what appeared to be a bid to soak up some of Google’s limelight prior to the launch of its new Gemini 3 flagship AI model — now recorded as the most powerful LLM in the world by multiple independent evaluators — Elon Musk’s rival AI startup xAI last night unveiled its newest large language …