Breakthrough AI to solve the world's biggest problems. › Join us: http://allenai.org/careers › Get our newsletter: https://share.hsforms.com/1uJkWs5aDRHWhiky3aHooIg3ioxmhttps://bsky.app/profile/ai2.bsky.socialhttps://bsky.app/profile/ai2.bsky.social/post/3mtmjmmad3l2pWhat kinds of training data shape different model capabilities? A Georgia Tech team used our fully open model flow to trace Olmo’s performance on social/general reasoning and social-science/STEM knowledge tests back to the types of text it trained on. 🧵 buff.ly/cQEzbUn21 Aug 2026 19:46 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mtmjmmad3l2phttps://bsky.app/profile/ai2.bsky.social/post/3mtevy2m3dn2eA model can sound like it knows a drug—even when it doesn’t. Researchers at @utaustin.bsky.social, @northeasternu.bsky.social, & @mdanderson.bsky.social found LLMs often lack drug-specific knowledge and instead lean on morphology. They used Olmo to trace why. 🧵 buff.ly/PuyfnCq18 Aug 2026 19:06 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mtevy2m3dn2ehttps://bsky.app/profile/ai2.bsky.social/post/3msixvpixoj27Today we're introducing a preview of TutorMoments, a framework that measures whether AI tutors can make one of the hardest calls in teaching: when to step in and help a student, & when to hold back and let them do the heavy thinking. 🧵07 Aug 2026 16:26 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3msixvpixoj27https://bsky.app/profile/ai2.bsky.social/post/3msg4ymhood2bWe're expanding our partnership with @hf.co to accelerate open science. Our storage on the Hub is roughly tripling to ~2 petabytes, & our downloads now run at high speed—even for our largest datasets & multi-checkpoint models. 🧵06 Aug 2026 13:19 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3msg4ymhood2bhttps://bsky.app/profile/ai2.bsky.social/post/3mseffby6so23📸 140+ people joined us during #SeattleTechWeek to learn how AI gets built at Ai2. Research lead Iz Beltagy walked through what it takes to train a truly open LLM—from large-scale training runs to eval before release. Thanks to everyone who came + asked thoughtful questions. 🤝05 Aug 2026 20:44 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mseffby6so23https://bsky.app/profile/ai2.bsky.social/post/3mry26yzbxz2eWhen a model writes, where do its words come from? Are they new, or do they match exactly with language it saw in training? An AI-writing detector can't tell you. @tuhinchakr.bsky.social's group at Stony Brook has been dissecting AI-generated prose with our infini-gram engine. 🧵31 Jul 2026 22:52 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mry26yzbxz2ehttps://bsky.app/profile/ai2.bsky.social/post/3mrpvmg2rro2rThe organizations best positioned to use Earth-observation models – those working in conservation, food security, & disaster response – often can't run these models at the scale they need. That's an infrastructure problem. So we built the OlmoEarth Platform to solve it. 🧵28 Jul 2026 17:08 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mrpvmg2rro2rhttps://bsky.app/profile/ai2.bsky.social/post/3mrfvgbyers2kAs a nonprofit research institute dedicated to advancing open science, we're encouraged to see growing support for open models across the AI ecosystem. We believe the evidence behind advanced AI systems shouldn’t be locked up in a few hands.24 Jul 2026 17:38 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mrfvgbyers2khttps://bsky.app/profile/ai2.bsky.social/post/3mrfvf5isi22kAs a nonprofit research institute dedicated to advancing open science, we're encouraged to see growing support for open models across the AI ecosystem. We believe the evidence behind advanced AI systems shouldn’t be locked up in a few hands.24 Jul 2026 17:38 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mrfvf5isi22khttps://bsky.app/profile/ai2.bsky.social/post/3mrfvckpg7c2cAs a nonprofit research institute dedicated to advancing open science, we're encouraged to see growing support for open models across the AI ecosystem. We believe the evidence behind advanced AI systems shouldn’t be locked up in a few hands.24 Jul 2026 17:36 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mrfvckpg7c2chttps://bsky.app/profile/ai2.bsky.social/post/3mrfvaaik5k2hAs a nonprofit research institute dedicated to advancing open science, we're encouraged to see growing support for open models across the AI ecosystem. We believe the evidence behind advanced AI systems shouldn’t be locked up in a few hands.24 Jul 2026 17:35 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mrfvaaik5k2hhttps://bsky.app/profile/ai2.bsky.social/post/3mrdbvzzw532uCurious how AI gets built at Ai2? For #SeattleTechWeek, we're opening our Northlake office for a panel with the researchers building our open models. They'll talk through the deep technical work behind them, with time after to chat about what you're working on & network. 👇23 Jul 2026 16:44 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mrdbvzzw532uhttps://bsky.app/profile/ai2.bsky.social/post/3mr6ctywwrw2qTwo updates to Asta, our ecosystem of AI agents for science: a one-click handoff from AutoDiscovery to Asta’s data analysis tools, & paper search that evaluates its own results + searches again when they fall short. 🧵21 Jul 2026 17:17 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mr6ctywwrw2qhttps://bsky.app/profile/ai2.bsky.social/post/3mqud2rxp242kWhat does it actually take to build cutting-edge AI systems? On July 30 during #SeattleTechWeek, the researchers behind Ai2's open models sit down to talk through the deep technical work behind them. 🧵17 Jul 2026 17:55 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqud2rxp242khttps://bsky.app/profile/ai2.bsky.social/post/3mqs772jbje2sThis week we hosted researchers from @cgiar.org, @servirglobal.bsky.social, NASA Harvest, & @msftresearch.bsky.social at our office to explore OlmoEarth for food security and natural resource management challenges. The CGIAR teams brought their own use cases and put OlmoEarth to work. 🧵16 Jul 2026 21:40 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqs772jbje2shttps://bsky.app/profile/ai2.bsky.social/post/3mqpy4fabo72tIt was an honor to bring OlmoEarth to the Nature Positive Summit (@npinitiative.bsky.social) this week in Kumamoto, Japan, with our partners The Group on Earth Observations (@earthobservations.bsky.social). 🧵16 Jul 2026 00:28 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqpy4fabo72thttps://bsky.app/profile/ai2.bsky.social/post/3mqp7gxwg6l2iWe built SciArena to test how well AI models handle scientific literature questions, as judged by researchers. It's retiring July 15, and the results are in: ~1,700 users cast ~3,900 votes. Here's what they told us. 🧵15 Jul 2026 17:06 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqp7gxwg6l2ihttps://bsky.app/profile/ai2.bsky.social/post/3mqkee22ilt2qOur @skylightmarine.bsky.social team is rolling out Shippy, an AI agent for the people protecting our ocean in real time. A wrong answer at these stakes can send a patrol vessel miles off course. Here's the architecture we built so analysts can trust it. 🧵13 Jul 2026 18:51 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqkee22ilt2qhttps://bsky.app/profile/ai2.bsky.social/post/3mqctwrpjfb2qolmOCR 2 is now in the Ai2 Playground—our home for our fully open text, video, and image understanding models. 🧵10 Jul 2026 19:09 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqctwrpjfb2qhttps://bsky.app/profile/ai2.bsky.social/post/3mqciujmltr2nOlmoEarth turns Earth data into insights—in hours, not years. But it's only as powerful as the people using it. So, we brought them into one room. 🧵10 Jul 2026 15:50 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqciujmltr2nhttps://bsky.app/profile/ai2.bsky.social/post/3mqafwtnc7f2h"Embeddings only get you so far… if you want the next level in performance, I think fine-tuning is the way to go." Ai2 research scientist @pjreddie.bsky.social explains how our partners customize OlmoEarth – our open-source Earth-observation models – to map crops, wildfire risk, & more. 👇09 Jul 2026 19:53 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mqafwtnc7f2hhttps://bsky.app/profile/ai2.bsky.social/post/3mq5reqzwt22zWhat can you build with a fully open robotics model in a weekend? 🤖 Robotics engineer @0xbinh.bsky.social used MolmoAct 2, our open vision-language-action model, in the voice-controlled robot that won @southparkcommons.bsky.social's AI hackathon. Watch our interview with him ↓ 🎥08 Jul 2026 18:39 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mq5reqzwt22zhttps://bsky.app/profile/ai2.bsky.social/post/3mpyxtekkdi2iWe're at #ICML2026 with papers & talks across the conference. Come say hello and learn about our latest research!06 Jul 2026 20:52 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mpyxtekkdi2ihttps://bsky.app/profile/ai2.bsky.social/post/3mpo4exshgw2zThe Danish Foundation Models (DFM) project is adapting our modular FlexOlmo architecture into a lighter-weight system that runs on commodity hardware—putting collaborative model building within reach of smaller research groups & organizations. 🧵02 Jul 2026 13:14 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mpo4exshgw2zhttps://bsky.app/profile/ai2.bsky.social/post/3mplw7344jk27We're at #ACL2026 with papers & talks across the conference. Come say hello and learn about our latest research!01 Jul 2026 16:18 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mplw7344jk27https://bsky.app/profile/ai2.bsky.social/post/3mph3pzaqif24AI image generators don't "draw"—they follow a compass: the score function, which points toward more probable images. The same compass drives Bayesian sampling and plasma physics. We built DiScoFormer to estimate the score far better when data gets complex. 🧵29 Jun 2026 18:13 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mph3pzaqif24https://bsky.app/profile/ai2.bsky.social/post/3mpgvftiwwg2cToday we're releasing OlmoEarth v1.2, the latest in our family of open foundation models for Earth observation. 🌍 We've switched to rotary positional embeddings (RoPE), which reduces artifacts in the embeddings & gives a small performance boost. 🧵29 Jun 2026 16:20 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mpgvftiwwg2chttps://bsky.app/profile/ai2.bsky.social/post/3mp4tr3s6ut2wHybrid (transformer–RNN) models are fast becoming a serious alternative to the transformer, but a big question remains: how do they process tokens differently & how does this impact performance? We compared our transformer (Olmo 3) & hybrid (Olmo Hybrid) models to find out. 🧵25 Jun 2026 16:24 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3mp4tr3s6ut2whttps://bsky.app/profile/ai2.bsky.social/post/3moldeiyhke2pLearn how @thinkaisquared.bsky.social & Domyn used Olmo, our family of fully open language models, to build their own models for regulated industries like finance, healthcare, & the public sector. 🧵18 Jun 2026 17:16 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3moldeiyhke2phttps://bsky.app/profile/ai2.bsky.social/post/3moiowmoj422lWe're releasing MolmoMotion, a 3D motion forecasting model. Given one or a few video frames, 3D points on an object, & an instruction like "Put the white bowl on the table," MolmoMotion predicts where those points will go over the next few seconds in a shared 3D world frame. 🧵17 Jun 2026 16:05 +0000at://did:plc:i4kytxgsu3yfsrt2ml3o7tgq/app.bsky.feed.post/3moiowmoj422l