Molmo
Molmo is a model family from Ai2 (Allen Institute for AI)126, with 1 assessed release in this catalog. Licenses and availability are recorded for each release, not for the family; its releases use the Apache License 2.0.
Molmo is Ai2's family of open vision-language models. The first release (September 2024) comprised MolmoE-1B, Molmo-7B-O, Molmo-7B-D, and Molmo-72B, trained with Ai2's PixMo data. Molmo 2 (December 2025) added video and multi-image understanding and grounding in 4B and 8B models built on Qwen3 and a 7B model (Molmo2-O-7B) built on Ai2's own Olmo 3. Ai2 has since built specialized variants on the line, including MolmoAct 2 for robot manipulation (May 2026).1235
- Release notes: Molmo 2 announcement (external site: allenai.org)
- Paper: Molmo 2 paper (arXiv 2601.10611) (external site: arxiv.org)
- Repository: Molmo 2 code (allenai/molmo2) (external site: github.com)
- Release notes: Original Molmo announcement (external site: allenai.org)
On AI on Hugging Face: Qwen/Qwen3-8B, allenai/Molmo2-8B
Releases assessed
| Release | Weights | Tier (USASI rubric v0.2) | License | Released |
|---|---|---|---|---|
| Molmo2-O 7B | Weights: Public | Model-disclosure tier (USASI rubric v0.2): Open-weight | Apache-2.0, Apache-2.0 | Dec 2025 |
What it is useful for
Organization context
Provenance and derivatives
Molmo models pair a pretrained vision encoder with a pretrained language model and are trained on Ai2's own image and video datasets (PixMo for the first release, the Molmo2 datasets for Molmo 2). Molmo2-4B and Molmo2-8B use the Qwen team's Qwen3 language models; Molmo2-O-7B uses Ai2's Olmo 3 7B Instruct; the Molmo 2 cards name SigLIP 2 (published under Google's Hugging Face organization) as the vision backbone.67814
- Derived from: Olmo 3 7B Instruct — Language model for Molmo2-O-7B.
- Derived from: Qwen3-8B (external site: huggingface.co) — Language model for Molmo2-8B, from the Qwen team; not developed by Ai2.
U.S. eligibility
Eligible · basis: U.S. nonprofit or lab
The Molmo models are developed by Ai2 (Allen Institute for AI), which describes itself as a Seattle-based non-profit AI research institute. Eligibility of each release is assessed on the release record; some releases build on third-party language models, recorded as provenance.69
Sources
This listing is not an endorsement, a safety assessment, or a federal approval.
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APA style
USASI. (2026, September 29). Molmo. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/open/molmo/
BibTeX
@misc{usasi_molmo,
author = {{USASI}},
title = {Molmo},
year = {2026},
month = sep,
howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/open/molmo/}},
note = {United States of America Superintelligence. Last updated 2026-09-29}
}The date is when this page was last updated. Add the date you read it if your style needs one.
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