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Model Highlight: Laguna S 2.1

A new heavyweight for agentic coding?

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aimodels-fyi
Jul 27, 2026
∙ Paid

Laguna S 2.1 is a new 118B parameter Mixture-of-Experts (MoE) model purpose-built for agentic software engineering and long-horizon tasks. Sitting comfortably between the XS and M.1 models in the Laguna family, it achieves high efficiency by activating just 8B parameters per token.

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Highlights

  • Massive 1M context …

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