Laguna
Laguna is a model family from Poolside1, with 2 assessed releases in this catalog. Licenses and availability are recorded for each release, not for the family; its releases use the OpenMDW License Agreement, version 1.1.
Laguna is Poolside's family of mixture-of-experts language models for agentic coding. Poolside's release notes and announcements list Laguna XS.2 and Laguna M.1 (April 2026), Laguna XS 2.1 (announced 2 July 2026), and Laguna S 2.1 (21 July 2026), with sizes from 33B total (3B active) to 225B total (23B active) parameters.1234
- Model hub: Poolside on Hugging Face (external site: huggingface.co)
- Release notes: Model release notes (external site: docs.poolside.ai)
- Paper: Laguna M.1/XS.2 technical report (external site: poolside.ai)
On AI on Hugging Face: poolside/Laguna-M.1
Releases assessed
| Release | Weights | Tier (USASI rubric v0.2) | License | Released |
|---|---|---|---|---|
| Laguna S 2.1 | Weights: Public | Model-disclosure tier (USASI rubric v0.2): Open-weight | OpenMDW License Agreement, version 1.1 | Jul 21, 2026 |
| Laguna XS 2.1 | Weights: Public | Model-disclosure tier (USASI rubric v0.2): Open-weight | OpenMDW License Agreement, version 1.1 | Jul 2, 2026 |
What it is useful for
Poolside documents the models for multi-step coding work that uses tools and checks, such as exploring a codebase, editing files, running tests, and fixing failures, mainly through its agent CLI or an OpenAI-compatible API.1
Organization context
In the news
Poolside releases Laguna S 2.1, a 118B-parameter open-weight model with a 1M-token context
Poolside introduced Laguna S 2.1 on July 21, 2026, a Mixture-of-Experts model with 118B total parameters and 8B activated per token that the model card says is designed for agentic coding and long-horizon work. Poolside describes it as a scale-up of the Laguna XS family, and the model card lists a 1,048,576-token context window. The weights are on Hugging Face under the OpenMDW-1.1 license, with FP8, NVFP4, INT4, and GGUF variants and a DFlash draft model for speculative decoding. USASI has not tested this model.
Poolside releases Laguna XS 2.1, a 33B-parameter open-weight coding model, under OpenMDW-1.1
Poolside introduced Laguna XS 2.1 on July 2, 2026, describing it as a Mixture-of-Experts model with 33B total parameters and 3B activated per token. The model card calls it an upgraded version of Laguna XS.2, designed for agentic coding and long-horizon work on a local machine. Poolside licenses the weights under OpenMDW-1.1 and publishes them on Hugging Face in BF16, FP8, NVFP4, and INT4 formats; the model is also offered through Poolside's API and OpenRouter. USASI has not tested this model.
U.S. eligibility
Sources
This listing is not an endorsement, a safety assessment, or a federal approval.
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APA style
USASI. (2026, September 29). Laguna. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/open/laguna/
BibTeX
@misc{usasi_laguna,
author = {{USASI}},
title = {Laguna},
year = {2026},
month = sep,
howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/open/laguna/}},
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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