Ai2 Newsletter
January 2025
Top story - All OLMo 2 details available now in just-released paper, "2 OLMo 2 Furious"
A tech report for OLMo 2 was released earlier this week that includes deep dives into pretraining, stability, mid-training recipe, post-training, compute infrastructure, and more. For extensive language modeling details across the entire OLMo 2 stack, access the paper now!
ACE2 addresses stability and accuracy of climate modeling
In 2023, we developed ACE, which addressed common climate model challenges. The new ACE version 2 (ACE2) ups the ante - it is the world’s first climate emulator accurate for climate variability and climate change. ACE2 incorporates numerous technical improvements, including exact ML-based conservation of air mass and moisture and a higher-capacity model. It has been trained on observed climate (1940-2020). This includes natural year-to-year variability in ocean temperatures associated with such phenomena as El Niño, as well as the bulk of the global warming experienced to date.
Now hiring predoctoral candidates!
If you are a predoctoral candidate, you could join the OLMo team! We are currently taking applications for our Predoctoral Young Investigator program. The application period closes on January 15, so apply today 🎉
Ai2 joins Discord
Join us on Discord to chat with our community about our new models, our open data, and more! Click the image below for an invitation link 🔗