Allen Institute for AI
Nonprofit AI research lab behind the fully-open OLMo models
The Allen Institute for AI (AI2) is a Seattle nonprofit research lab founded by Paul Allen. Its OLMo model family is released with training data, code, and weights all public, making it one of the few genuinely fully-open frontier-adjacent LLM efforts.
Visit Allen Institute for AI// models by Allen Institute for AI
OLMo 7B
AI2's first fully open model release, with open weights, data, and training code
Allen Institute for AI · Language · Free
ELMo
AI2's deep contextualized word representation model that predated the transformer era
Allen Institute for AI · Language · Free
OLMo 2
AI2's fully open model, released with training data and code alongside weights
Allen Institute for AI · Language · Free
OLMoE
AI2's fully open mixture-of-experts model
Allen Institute for AI · Language · Free