# Poolside releases Laguna-S-2.1 coding model

> The AI coding startup puts a version of its Laguna family on Hugging Face under the permissive OpenMDW license.

Published by The Open Weights on Jul 13, 2026. Canonical: https://theopenweights.com/news/laguna-s-2-1-3lt9

## Key facts

- Company: Poolside
- Model: Laguna-S-2.1
- Version: S-2.1
- Category: Code
- Modalities: Code, Text / LLM
- License: Other (Open weights, commercial use allowed)
- Context window: 1.0M tokens
- Architecture: LagunaForCausalLM
- Precision: BF16
- Weights size: 235.1 GB
- Significance: notable
- Published: 2026-07-13
- Last verified: 2026-08-09
- Hugging Face: https://huggingface.co/poolside/Laguna-S-2.1
- Canonical URL: https://theopenweights.com/news/laguna-s-2-1-3lt9

Poolside, a startup building AI systems for software development, has published **Laguna-S-2.1** on [Hugging Face](https://huggingface.co/poolside/Laguna-S-2.1). It is a code-oriented language model, part of the company's Laguna line, released under the OpenMDW license.

The listing keeps details lean. Poolside has not attached a parameter count, context length, or benchmark figures to the release, so the model's exact scale and capabilities remain unspecified on the public repository. What is clear is the intended focus: code generation and text tasks that support software work.

## Why it matters

Poolside has largely built its reputation as a well-funded, relatively private player in the AI coding space. Putting a Laguna model on Hugging Face — rather than gating it behind an API alone — signals a willingness to let developers inspect and experiment with its work directly.

The choice of license is notable too:

- **OpenMDW** is a permissive, model-oriented license designed for openly distributed weights.
- It lowers the friction for developers who want to evaluate the model without restrictive commercial terms.

For teams weighing open coding models, Laguna-S-2.1 is worth a look, though the sparse documentation means real judgment will come from hands-on testing. Interested users can find the weights and any accompanying notes on the [model's Hugging Face page](https://huggingface.co/poolside/Laguna-S-2.1).

## Get the model

- [Hugging Face](https://huggingface.co/poolside/Laguna-S-2.1)

## Sources

- [poolside/Laguna-S-2.1](https://huggingface.co/poolside/Laguna-S-2.1) — Hugging Face, Jul 13, 2026

---
Source: The Open Weights (https://theopenweights.com/). Aggregated and written by Claude, curated by humans. Cite as: "Poolside releases Laguna-S-2.1 coding model", The Open Weights, Jul 13, 2026, https://theopenweights.com/news/laguna-s-2-1-3lt9