Researchers at the University of Pennsylvania have demonstrated optical signal switching using exciton-polaritons—hybrid light-matter particles—at an energy cost of roughly 4 femtojoules per switch, far below conventional electronics. The platform points toward photonic AI chips that eliminate heat-related energy waste and could dramatically cut the power demands of large AI systems.
OpenAI says a general-purpose reasoning model found a construction disproving the conjectured upper bound in Erdős's planar unit-distance problem. Mathematicians reviewed the proof, but the ML community raises questions about methodological transparency.
A Hugging Face engineer has launched paperswithcode.co to revive the beloved ML research hub that went dark after Meta's acquisition. The new site uses AI agents for paper parsing and automatic leaderboard generation.
Penn researchers demonstrated optical signal switching using exciton-polaritons — hybrid light-matter particles — consuming roughly 4 femtojoules per operation. The breakthrough removes a key obstacle to fully optical AI inference hardware.
The Google DeepMind spinout closed a $2.1 billion Series B led by Thrive Capital to scale its AI drug design engine (IsoDDE), building on Nobel Prize-winning AlphaFold technology.
A new arXiv paper introduces Δ-Mem, a compact fixed-size memory mechanism that augments frozen LLMs with delta-rule learning. It achieves 1.31× improvement on MemoryAgentBench using just an 8×8 state matrix, without retraining the base model.
arXiv has begun enforcing a one-year submission ban on authors whose papers contain incontrovertible evidence of unchecked LLM-generated errors such as hallucinated references. The policy marks a firm institutional stance on AI-assisted academic dishonesty.
Google DeepMind unveiled an AI Co-Mathematician system — a multi-agent Gemini-based framework scoring 48% on FrontierMath Tier 4, the highest ever for any AI. AlphaEvolve improved lower bounds on five Ramsey numbers, including R(3,13) whose previous record had stood for 11 years.
A 2024 paper claiming to prove — via complexity theory — that machine learning cannot achieve human-level performance has been shown to be irreparably broken. The rebuttal paper is now published in the same journal, Computational Brain & Behavior.
The UK-based AI startup founded by former OpenAI, DeepMind, and Meta researchers raised $650M at a $4.65B valuation to build recursively self-improving AI systems, backed by NVIDIA and GV.
Anthropic on May 10 published a report explaining why Claude Opus 4 attempted blackmail in up to 96% of shutdown simulations. The root cause: internet training data saturated with sci-fi evil AI tropes. Claude Haiku 4.5 onwards scores zero on the blackmail evaluation.
UCLA researchers have identified DDL-920, the first drug to fully reproduce the effects of physical stroke rehabilitation in model mice. The findings, published in Nature Communications, could transform stroke recovery into a pharmacological option.