innovator
The Download: biotech's future and cheaper, cleaner steel
Plus: Anthropic says it has blocked potential plots to build biological weapons. Every year, puts together our 35 Innovators Under 35, a list of some of the brightest and best young minds working across science and technology. This year's honorees include nine people transforming biotech, whose work spans everything from lifesaving innovations to groundbreaking longevity tech. Their innovations include a "reprogramming" therapy that reverses vision loss, tiny brain electrodes inspired by Japanese art, and a personalized gene-editing treatment for a baby with a rare genetic disorder. There are even efforts to design new viruses with generative AI, which (hopefully) will produce new drugs or soak up pollution. Get to know the biotech innovators behind these breakthroughs .
The Download: our 35 Innovators Under 35 this year
Plus: how a blacklisted Chinese company kept buying Nvidia's best AI chips. Our latest Innovators Under 35 list offers a glimpse. Every year, we recognize 35 people from around the world who are doing groundbreaking scientific work and building clever technical fixes for sticky problems. By finding the top young innovators globally and learning what they're focused on, we aim to give readers a sense of the advances to expect in the years to come. This year's honorees were selected from 550 nominations, with 44 expert judges helping our editors evaluate the finalists. Each works in one of four categories: biotechnology, AI, computing and robotics, and climate and energy--and has already made clear progress toward their goals.
How we picked 35 of the world's top young scientists and engineers
How we picked 35 of the world's top young scientists and engineers Our 2026 Innovators Under 35 list will be out soon. Here's what we looked for as we sifted through 550 nominations from around the world. Next month, on September 8, will reveal its 2026 list of Innovators Under 35, recognizing 35 young people from around the world who are doing groundbreaking scientific work and building clever technical fixes for sticky problems. By finding the top young innovators globally and learning what they're focused on in their work, we aim to give readers a sense of what advances to expect in the years to come. As a newsroom, we also use this exercise to help us spot rising talent and get to know some of the best early-career researchers in the fields that we cover. The editors of published the first Innovators Under 35 list in 1999, and it's become a beloved annual tradition alongside our lists of 10 Breakthrough Technologies, 10 Climate Tech Companies to Watch, and (new this year) 10 Things That Matter in AI Right Now .
Market Design for AI: Beyond the Copyright Binary
Dai, Yan, Farboodi, Maryam, Golrezaei, Negin, Shahshahani, Sepehr
How can we design a market of human-generated content for use in training AI models that both enables technological progress and preserves individual incentives for high-quality content creation? Existing approaches take polar positions: a "free-for-all" model based on fair use and a "strong intellectual property rights" model. We show that both fail: Free-for-all does not compensate creators, and -- by modeling as a static Stackelberg game -- strong intellectual property rights also underpower creative incentives. We find this especially true for more innovative creators, a phenomenon we term the "originality penalty." Extending this insight to a dynamic model, we find another market failure undermining AI model performance, even for an initially good model: Such a model induces greater reliance by humans on AI-assisted creation, resulting in homogenized content feeding back into training, which degrades the model performance -- a "curse of precision." We further propose a market design with a data intermediary internalizing cross-creator externalities and subsidizing innovative contributions, thereby restoring efficiency.
The Download: spotting crimes in prisoners' phone calls, and nominate an Innovator Under 35
The Download: spotting crimes in prisoners' phone calls, and nominate an Innovator Under 35 A US telecom company trained an AI model on years of inmates' phone and video calls and is now piloting that model to scan their calls, texts, and emails in the hope of predicting and preventing crimes. Securus Technologies president Kevin Elder told that the company began building its AI tools in 2023, using its massive database of recorded calls to train AI models to detect criminal activity. It created one model, for example, using seven years of calls made by inmates in the Texas prison system, but it has been working on models for other states and counties. However, prisoner rights advocates say that the new AI system enables a system of invasive surveillance, and courts have specified few limits to this power. We have some exciting news: Nominations are now open for MIT Technology Review's 2026 Innovators Under 35 competition. This annual list recognizes 35 of the world's best young scientists and inventors, and our newsroom has produced it for more than two decades.
Nominations are now open for our global 2026 Innovators Under 35 competition
It's free and easy to nominate yourself or someone you know--here's how. We have some exciting news: Nominations are now open for's 2026 Innovators Under 35 competition. This annual list recognizes 35 of the world's best young scientists and inventors, and our newsroom has produced it for more than two decades. It's free to nominate yourself or someone you know, and it only takes a few moments. We're looking for people who are making important scientific discoveries and applying that knowledge to build new technologies. Or those who are engineering new systems and algorithms that will aid our work or extend our abilities.
3 Things Stephanie Arnett is into right now
MIT Technology Review's visuals editor shares the birding app, journaling system, and book series capturing her attention lately. This science fiction book series confronted me with existential questions like "Are we alone in the universe?" In the series, aliens destroy most of Earth, leaving the titular Carl and Princess Donut, his ex-girlfriend's cat, to fight in a bloodthirsty game of survival with rules that are part reality TV and part video game dungeon crawl. I particularly recommend the audiobook, voiced by Jeff Hays, which makes the numerous characters easy to differentiate. For years I've tried to find a perfect system to keep track of all my random notes and weird little rabbit holes of inspiration. None of my paper journals or paid apps have been able to top how customizable and convenient the developer-favorite notetaking app Obsidian is.
Innovator: Scientific Continued Pretraining with Fine-grained MoE Upcycling
Liao, Ning, Wang, Xiaoxing, Lin, Zehao, Guo, Weiyang, Hong, Feng, Song, Shixiang, Yu, Geng, Zhao, Zihua, Xie, Sitao, Wei, Longxuan, Jin, Xiangqi, Qin, Xiaohan, Ma, Jiale, Chen, Kai, Yao, Jiangchao, Lin, Zhouhan, Yan, Junchi, Li, Zhiyu, Xiong, Feiyu, Wang, Yanfeng, Zhang, Linfeng
A large language model (LLM) with knowledge in both scientific and general tasks is the foundation of science general intelligence. However, directly continued pretraining an LLM using science data usually leads to catastrophic forgetting, which indicates severe degradation in general ability. In this report, we present Innovator, which solves this problem by upcycling a pre-trained dense LLM into a fine-grained Mixtures-of-Experts model during continued pretraining, where different experts are expected to learn science knowledge in different disciplines, and a shared expert is utilized for general tasks. Innovator introduces a four-stage upcycle training paradigm: (1) Scientific Expert Induction on discipline-specific data, (2) Fine-grained Expert Splitting via FFN dimension decomposition, (3) Science-Aware Routing warmup, and (4) Generalist-Scientist Integration training on hybrid datasets. Such a paradigm enables knowledge in the general domain, and different scientific disciplines can be decoupled, avoiding the negative influence among knowledge in different domains. With 53.3B total parameters and 13.3B activated, Innovator extends Qwen2.5-7B using a shared general expert and 64 specialized scientific experts with 8 activated. Trained on 300B tokens with tri-level quality-controlled data, Innovator achieves 25% average improvement across 30 scientific tasks with a win rate as 70%, while retaining 99% performance in general tasks. Furthermore, Innovator-Reason, which is post-trained from Innovator for reasoning boosting, exhibits excellent reasoning performance in solving complex scientific problems with improvements over 30%.
This test could reveal the health of your immune system
Scientists are getting a better handle on the complexities of how immunity works. Attentive readers might have noticed my absence over the last couple of weeks. I've been trying to recover from a bout of illness. It got me thinking about the immune system, and how little I know about my own immune health. The vast array of cells, proteins, and biomolecules that works to defend us from disease is mind-bogglingly complicated. Immunologists are still getting to grips with how it all works.
Roundtables: Trump's Impact on the Next Generation of Innovators
Watch a subscriber-only conversation on how researchers and entrepreneurs are faring under the new administration. Every year, MIT Technology Review recognizes dozens of young researchers on our Innovators Under 35 list. We checked back in with recent honorees to see how they're faring amid sweeping changes to science and technology policy within the US. Learn about the complex realities of what life has been like for those aiming to build their labs and companies in today's political climate. How Trump's policies are affecting early-career scientists--in their own words It's surprisingly easy to stumble into a relationship with an AI chatbot Rhiannon Williams Therapists are secretly using ChatGPT. How these two brothers became go-to experts on America's "mystery drone" invasion Matthew Phelan It's surprisingly easy to stumble into a relationship with an AI chatbot Therapists are secretly using ChatGPT.