ModelTreeAI Model Lineage
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Model creator

AI2

A Seattle-based nonprofit research institute whose OLMo project releases fully open language models, publishing weights, training data, and code.

2 familiesChecked Aug 28, 2026
Featured ecosystems

Recorded lineage, creator by creator

Nesting shows a recorded predecessor Model Passport
CreatorAI2A Seattle-based nonprofit research institute whose OLMo project releases fully open language models, publishing weights, training data, and code.
Family

OLMo 2

First released Nov 26, 2024

No recorded lineage links in this family, so no releases are connected here.

No creator statement of what this variant name means is recorded for OLMo 2.

Family

Molmo

First released Sep 25, 2024

No recorded lineage links in this family, so no releases are connected here.

No creator statement of what this variant name means is recorded for Molmo.

Families without a featured release are not drawn here. Every record in the catalog, featured or not, is listed in the model index and the Model Tree.

Official record

The organization's own surfaces, and the verification date these facts were last checked against them.

Full recorded name
Allen Institute for AI
Website
https://allenai.org/
Release page
https://allenai.org/blog
Type
research lab
Verified
Aug 28, 2026

Releases

Every release recorded for AI2, current and legacy alike. Filter by lifecycle status; the choice is kept in the page address so it survives a reload or a shared link.

Showing all 2 releases.

  • OLMo 2 7B Available

    OLMo 2Base Nov 26, 2024 Open-weight

  • Molmo 7B-D Preview

    Molmo7B-D Sep 25, 2024 Open-weight

Primary sources

The organization-level sources behind the summary above.