Laguna S 2.1 is the flagship of Poolside's open-weight Laguna family, a mixture-of-experts model with 118B total and 8B active parameters released in July 2026. Poolside trains its models from scratch for software engineering, post-training with reinforcement learning from code execution feedback inside the same agentic harness used for evaluation, and native reasoning can be switched on or off per request. The model is tuned for long-horizon agentic coding, sustained tool-use chains, and repository-scale tasks that span many files and steps. Poolside reports strong agentic benchmark results, including 70.2% on Terminal-Bench 2.1 and 78.5% on SWE-Bench Multilingual, positioning it against much larger frontier coding models. It suits production coding agents that need dependable multi-step execution rather than single-shot completion.
Poolside Laguna S 2.1 runs on 1 route through the qynio gateway. Compare residency, zero retention, and training posture at a glance — full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output |
|---|---|---|---|---|---|
| Multi | Not by default | No | — | — |
Each route hosting Poolside Laguna S 2.1 has its own privacy posture, residency, and no-KYC terms. Postures are maintained by qynio with a last-verification timestamp.
Zero data retention is not on by default — abuse monitoring. No training on customer data. GLOBAL; wallets; deposit available.
Call Poolside Laguna S 2.1 through the qynio gateway with one API key. Let your coding agent set it up, or call it directly — qynio is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up qynio for you.
import OpenAI from "openai";const client = new OpenAI({apiKey: process.env.QYN_API_KEY,baseURL: "https://api.qyn.io/v3/compat",});const completion = await client.chat.completions.create({model: "poolside/laguna-s-2.1",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
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