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Laguna by Poolside

AI Developer ToolsFree plan available

Updated

In short

Laguna by Poolside is an AI developer tool: open-weight (Apache 2.0) foundation models for agentic coding, with a 256K context window and single-GPU XS.2.

What is Laguna by Poolside?

Laguna by Poolside is an AI developer tool: a family of foundation models built for agentic coding and long-horizon software work. Released by Poolside, the family includes Laguna M.1 (a 225B-parameter mixture-of-experts model with 23B active parameters) and Laguna XS.2 (a 33B model with 3B active parameters published as open weights under the Apache 2.0 license). XS.2 is small enough to run on a single GPU yet, per Poolside, holds up against models several times its size. Both models support context lengths up to 256K tokens, making them suited to multi-file, multi-step coding tasks rather than single-prompt completions. Laguna is distributed through several channels: Poolside's own API, OpenRouter, Ollama, and Hugging Face, so teams can self-host the open-weight XS.2 or call the larger M.1 hosted. The models also power Poolside's own products — pool, a terminal-based coding agent, and Shimmer, a cloud development experience for iterating on web apps, APIs, and CLIs. Laguna is aimed at individual developers, small teams, startups, universities, and research institutions that want strong agentic coding models with an open-weight option. For buyers comparing the best AI for agentic coding, Laguna's draw is the Apache-2.0 open-weight tier plus a long 256K context window.

What is Laguna by Poolside used for?

Agentic coding and long-horizon software development for developers, startups, and research teams, with an open-weight self-hostable option

How much does Laguna by Poolside cost?

Free

Free

Free to use for a limited time via Poolside's API and OpenRouter

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Plan

Price not published

Laguna XS.2 available as open weights (Apache 2.0) to self-host at no license cost

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Plan

Price not published

Custom rate limits or model weights available to qualifying teams on request

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Plan

Price not published

Long-term hosted pricing not published — contact the vendor

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Pros and cons

Pros

  • Laguna XS.2 (33B, 3B active) ships as open weights under the Apache 2.0 license
  • XS.2 is small enough to run on a single GPU
  • Supports context lengths up to 256K tokens for multi-file, long-horizon coding
  • Available via Poolside API, OpenRouter, Ollama, and Hugging Face
  • Purpose-built for agentic coding rather than general chat completion

Cons

  • Long-term pricing for the hosted API is not yet specified (free for a limited time)
  • Running the larger M.1 (225B) model self-hosted needs substantial GPU resources
  • Newer model family with a shorter public track record than established coding models
  • Best results require an agentic workflow (pool, Shimmer, or compatible tooling)

Questions about Laguna by Poolside

What is Laguna by Poolside used for?

Laguna is a family of foundation models built for agentic coding and long-horizon software tasks — multi-file, multi-step work rather than single-prompt code completion. It powers Poolside's pool terminal agent and Shimmer cloud dev experience, and can be called via API or self-hosted.

Is Laguna by Poolside free or open source?

Laguna XS.2 (33B parameters) is released as open weights under the Apache 2.0 license, so you can download and self-host it for free. The hosted models are free to use for a limited time via Poolside's API and OpenRouter; long-term hosted pricing has not been published.

What context length does Laguna support?

Laguna models support context lengths up to 256K tokens, which suits large multi-file coding tasks and long agentic sessions.

Can Laguna XS.2 run on a single GPU?

Yes. Laguna XS.2 has 33B total parameters with 3B active and is designed to run on a single GPU while, per Poolside, standing up against models several times its size.

What are the best alternatives to Laguna by Poolside?

Qwen2.5-Coder, DeepSeek-Coder, Codestral, Claude (Anthropic)

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