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Ai2

Latest research

March 13, 2025

OLMo 2 32B: First fully open model to outperform GPT 3.5 and GPT 4o mini

Introducing OLMo 2 32B, the most capable and largest model in the OLMo 2 family.
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February 11, 2025

OLMoE, meet iOS

Our mixture-of-experts model is available on the Apple app store! The OLMoE app allows anyone to test the model privately and securely.
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November 26, 2024

OLMo 2: The best fully open language model to date

Our next generation of fully-open base and instruct models sit at the Pareto frontier of performance and training efficiency. Check out our [paper](https://arxiv.org/abs/2501.00656) to learn more, or keep reading for a summary.
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October 2, 2024

Investigating pretraining dynamics and stability with OLMo checkpoints

We use data from our open pretraining runs to test hypotheses about training dynamics in OLMo checkpoints.
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September 4, 2024

OLMoE: An open, small, and state-of-the-art mixture-of-experts model

Introducing OLMoE, the first model to be on the Pareto frontier of performance and size, released with open data.
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August 12, 2024

Digital Socrates: Evaluating LLMs through explanation critiques

Digital Socrates is an evaluation tool that can characterize LLMs' explanation capabilities.
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August 8, 2024

Open research is the key to unlocking safer AI

Ai2 presents our stance on openness and safety in AI.
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April 17, 2024

OLMo 1.7–7B: A 24 point improvement on MMLU

Introducing an updated version of our 7 billion parameter Open Language Model, OLMo 1.7–7B.
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April 15, 2024

Making a switch — Dolma moves to ODC-BY

We’re moving the Dolma dataset to the ODC-BY license. Here’s why.
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