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Poolside releases Laguna XS 2.1 open-weight coding model

Poolside has released Laguna XS 2.1, an open-weight coding model for local long-horizon software engineering and agentic workflows, with BF16, FP8, INT4 and NVFP4 checkpoints available on Hugging Face.

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Poolside has released Laguna XS 2.1, an open-weight coding model aimed at local long-horizon software engineering and agentic coding workflows.

The model is a 33B-total-parameter MoE system with about 3B active parameters per token, designed for tool use, reasoning, and multi-step coding tasks.

Poolside is providing BF16, FP8, INT4, and NVFP4 checkpoints on Hugging Face. Developers can also use the model through OpenRouter, the Poolside API, Ollama, llama.cpp, vLLM, SGLang, and NVIDIA TensorRT-LLM.

The release also includes DFlash draft models intended to improve local inference speed. That matters for teams exploring coding agents without relying entirely on hosted model APIs.

The broader signal is that coding-agent competition is moving beyond cloud APIs into open weights, local runtimes, and deployment flexibility.

Why it matters

The release gives developers another open-weight option for private coding agents and local software-engineering workflows.

Coding AgentOpen Weight ModelPoolsideDeveloper Tools
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