Laguna XS.2

Laguna XS.2

Poolside
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About

Laguna XS.2 is Poolside’s open-weight agentic coding model, built as the lightest and fastest model in the Laguna family. It is a 33B total-parameter Mixture of Experts model with 3B activated parameters, trained completely in-house on 30T tokens. As Poolside’s newest generation model open to the community, Laguna XS.2 is a second-generation architecture and the company’s first open-weight model, built on the lessons learned from training Laguna M.1 across synthetic data and reinforcement learning. The model is designed for agentic coding workflows, where it can code, act, iterate quickly, and perform best inside Poolside’s coding agent. Laguna XS.2 is positioned as a strong model for rapid agentic iteration, especially for developers and teams that need a compact, efficient coding model rather than a heavier frontier system. It is released under an Apache 2.0 license, allowing the community to evaluate, fine-tune, quantize, serve, and build on the weights.

About

Patronus AI provides frontier AI labs with training data, tasks, and simulated environments for reinforcement learning. The company builds RL environments that replicate real-world digital workflows across software engineering, computer use, customer support, and financial services. Each environment pairs simulated applications with tasks and reward signals, so models can practice long-horizon, multi-step work under realistic conditions such as latency, interface changes, and unexpected pop-ups. Patronus AI also develops Digital World Models, AI models trained to predict how digital environments behave, which are used to generate and evolve training environments at scale as models improve. Its work spans reinforcement learning environments and digital world models for agents operating in software, supporting post-training, benchmarking, and evaluation of frontier AI models and agents.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

AI developers and engineering teams that need efficient AI models for agentic coding, long-horizon software development, and rapid coding iterations

Audience

Frontier AI labs training and evaluating AI models and agents

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Custom pricing based on project scope. Contact Patronus AI to discuss.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Poolside
Founded: 2023
United States
www.poolside.ai/models

Company Information

Patronus AI
Founded: 2023
United States
www.patronus.ai/

Alternatives

GLM-5.2

GLM-5.2

Z.ai

Alternatives

GLM-5.3

GLM-5.3

Z.ai
GLM-5

GLM-5

Z.ai
Kimi K2.7 Code

Kimi K2.7 Code

Moonshot AI
Laguna M.1

Laguna M.1

Poolside
LongCat-2.0

LongCat-2.0

LongCat
Poolside

Poolside

Poolside.ai
MiniMax M2.5

MiniMax M2.5

MiniMax

Categories

AI Coding Models Supported
AI Models Supported

Categories

Artificial Intelligence Features

Chatbot Not Supported
For eCommerce Not Supported
For Healthcare Not Supported
For Sales Not Supported
Image Recognition Not Supported
Machine Learning Supported
Multi-Language Not Supported
Natural Language Processing Supported
Predictive Analytics Not Supported
Process/Workflow Automation Not Supported
Rules-Based Automation Not Supported
Virtual Personal Assistant (VPA) Not Supported

Integrations

Agent Client Protocol (ACP) Supported
Claude Code Supported
Cline Supported
Hermes Agent Supported
Hugging Face Supported
IntelliJ IDEA Supported
Kilo Code Supported
Nous Portal Supported
Ollama Supported
OpenAI Codex Supported
OpenClaw Supported
OpenCode Supported
OpenRouter Supported
Poolside Supported
Roo Code Supported
Visual Studio Supported
Visual Studio Code Supported
Zed Supported

Integrations

Agent Client Protocol (ACP) Not Supported
Claude Code Not Supported
Cline Not Supported
Hermes Agent Not Supported
Hugging Face Not Supported
IntelliJ IDEA Not Supported
Kilo Code Not Supported
Nous Portal Not Supported
Ollama Not Supported
OpenAI Codex Not Supported
OpenClaw Not Supported
OpenCode Not Supported
OpenRouter Not Supported
Poolside Not Supported
Roo Code Not Supported
Visual Studio Not Supported
Visual Studio Code Not Supported
Zed Not Supported
Claim Laguna XS.2 and update features and information
Claim Laguna XS.2 and update features and information
Claim Patronus AI and update features and information
Claim Patronus AI and update features and information