Release

Poolside releases Laguna XS 2.1, a 33B-parameter open-weight coding model, under OpenMDW-1.1

Event: Jul 2, 2026 · Published: Oct 13, 2026

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.1 2

Sources

1.
Introducing Laguna XS 2.1 (external site: poolside.ai)
Poolside · Announcement · published Jul 2, 2026 · accessed Oct 13, 2026
2.
poolside/Laguna-XS-2.1 model card (external site: huggingface.co)
Poolside (Hugging Face) · Model card · accessed Oct 13, 2026

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USASI. (2026, October 13). Poolside releases Laguna XS 2.1, a 33B-parameter open-weight coding model, under OpenMDW-1.1. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/news/poolside-releases-laguna-xs-2-1/

BibTeX

@misc{usasi_news_poolside_releases_laguna_xs_2_1,
  author = {{USASI}},
  title = {Poolside releases Laguna XS 2.1, a 33B-parameter open-weight coding model, under OpenMDW-1.1},
  year = {2026},
  month = oct,
  howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/news/poolside-releases-laguna-xs-2-1/}},
  note = {United States of America Superintelligence. Last updated 2026-10-13}
}

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