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Laguna S 2.1

Laguna S 2.1 is Poolside's new open-weight model for agentic coding and long-horizon work.

ReasoningTool Use
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'poolside/laguna-s-2.1',
  prompt: 'Why is the sky blue?'
})
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Poolside
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07/20/2026