Poolside Releases Laguna S 2.1: A Small Coding Model Outperforming 1T+ Parameter Giants
mervenoyann · x · 2026-07-22
Poolside has announced Laguna S 2.1, claiming it is the most capable agentic coding model in its weight class.
On the Terminal-Bench 2.1 benchmark, the model scored 70.2, competing directly with models 5–25x its size and outperforming several of them. On the highly challenging long-horizon DeepSWE benchmark, Laguna S 2.1 scored 40.4, beating multiple open-source models with over 1 trillion parameters. The company has also released the full trajectory of every trial in the final evaluation set on GitHub for transparency.
Related event: Poolside Releases 118B Open-Weight Coding Model Laguna S 2.1(35 posts)→
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