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Laguna S 2.1 is a 118B-parameter Mixture-of-Experts model that activates 8B…

Brief

Laguna S 2.1 is a new local-first model from Poolside: a 118B-parameter MoE (8B activated/token) with a 1M-token context, “thinking/no-thinking” modes, and weights released under OpenMDW-1.1 on Hugging Face. Poolside and early-access reviewer @alexocheema claim it beats 1T+ models on Terminal-Bench 2.1 and can run on a single NVIDIA DGX Spark, with detailed results forthcoming on local.ai.

Why it matters

Laguna S 2.1 is a 118B-parameter Mixture-of-Experts model that activates 8B parameters per token and supports up to a 1,000,000-token context window; Poolside released it under OpenMDW-1.1 with weights available on Hugging Face.

Key details

  • @alexocheema and Poolside (announcement dated 2026-07-22) claim Laguna S 2.1 outperforms 1T+ parameter models on Terminal-Bench 2.1 while remaining small enough to run on a single NVIDIA DGX Spark; @alexocheema received early access and will publish full evaluations on local.ai.
Source evidence

Laguna S 2.1 is a new model built for running locally on DGX Spark.

It's punching way above its weight class. It has only 118B parameters, but it's scoring higher than 1T+ parameter models on Terminal-Bench 2.1.

As Local AI gains adoption, I expect more models to be released that are designed specifically for local hardware.

We kindly received early access from the @poolsideai and have been evaluating it extensively - full results will be added to local dot ai shortly.

Poolside (@poolsideai)

Today we're releasing Laguna S 2.1, our most capable model to date.

It's a 118B total parameter Mixture-of-Experts model with 8B activated per token, a context window of up to 1M tokens, and thinking and no-thinking modes.

Capable enough to hold its own against models many times its size. Small enough to run on a single @NVIDIAAI DGX Spark.

Laguna S 2.1 is fully open under OpenMDW-1.1, with weights available today on @huggingface

poolside.ai/blog/introducing…

Video

— https://nitter.net/poolsideai/status/2079613777343848465#m