Laguna XS 2.1

Laguna XS 2.1

Poolside
+
+

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About

Laguna XS 2.1 is an upgraded open weight agentic coding model designed for long-horizon work on a local machine. It uses a 33-billion-parameter Mixture-of-Experts architecture with 3 billion activated parameters per token, retaining the same efficient architecture as Laguna XS.2 while improving multilingual software engineering and terminal-style task performance. The model is built to support coding agents that inspect repositories, reason through complex changes, use tools, execute commands, and continue working across extended tasks. It is served with a 256K context window, giving agents room to work with large codebases, lengthy histories, and multi-step workflows. Laguna XS 2.1 is supported by vLLM, SGLang, NVIDIA TensorRT-LLM, Hugging Face Transformers, and Ollama, with native llama.cpp support planned. It is available in BF16, FP8, INT4, and NVFP4 checkpoints, allowing developers to choose between maximum fidelity and configurations suited to tighter VRAM or compute budgets.

About

Trinity Large Thinking is a frontier open source reasoning model developed by Arcee AI, designed specifically for complex, multi-step problem solving and autonomous agent workflows that require long-horizon planning and tool use. Built on a sparse Mixture-of-Experts architecture with roughly 400 billion total parameters but only about 13 billion active per token, the model achieves high efficiency while maintaining strong reasoning performance across tasks such as mathematical problem solving, code generation, and multi-step analysis. It introduces extended chain-of-thought reasoning capabilities, allowing the model to generate intermediate “thinking traces” before producing final answers, which improves accuracy and reliability in complex scenarios. Trinity Large Thinking supports a very large context window of up to 262K tokens, enabling it to process long documents, maintain state across extended interactions, and operate effectively in continuous agent loops.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Local-first developer tooling teams that need an efficient open model for persistent coding agents on limited hardware

Audience

Developers and enterprises building autonomous AI agents that need a high-performance, open-source reasoning model for complex, multi-step workflows

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

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

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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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Poolside
Founded: 2023
United States
poolside.ai/blog/introducing-laguna-xs-2-1

Company Information

Arcee AI
Founded: 2023
United States
www.arcee.ai/blog/trinity-large-thinking

Alternatives

Alternatives

LongCat-2.0

LongCat-2.0

LongCat
Kimi K2 Thinking

Kimi K2 Thinking

Moonshot AI
LongCat-2.0

LongCat-2.0

LongCat
Sarvam 105B

Sarvam 105B

Sarvam
Mistral Large 3

Mistral Large 3

Mistral AI
GLM-5.1

GLM-5.1

Zhipu AI

Categories

Categories

Integrations

OpenClaw
OpenRouter
Visual Studio Code
Agent Client Protocol (ACP)
Claude Code
Claude Fable 5
Claude Mythos 5
Claude Opus 4.7
Claude Opus 4.8
Cline
Hermes Agent
IntelliJ IDEA
Kilo Code
Nous Portal
Ollama
OpenAI Codex
Poolside
Roo Code
Vercel AI Gateway
Visual Studio

Integrations

OpenClaw
OpenRouter
Visual Studio Code
Agent Client Protocol (ACP)
Claude Code
Claude Fable 5
Claude Mythos 5
Claude Opus 4.7
Claude Opus 4.8
Cline
Hermes Agent
IntelliJ IDEA
Kilo Code
Nous Portal
Ollama
OpenAI Codex
Poolside
Roo Code
Vercel AI Gateway
Visual Studio
Claim Laguna XS 2.1 and update features and information
Claim Laguna XS 2.1 and update features and information
Claim Trinity-Large-Thinking and update features and information
Claim Trinity-Large-Thinking and update features and information