Poolside

What is Poolside?

Poolside builds open-weight foundation models and the systems used to refine and improve them, with an emphasis on agentic coding. Its current models include Laguna S 2.1, which has 118B parameters (8B active) and a 1M context window, and Laguna XS 2.1, which has 33B parameters (3B active), a 256K context window and is small enough to run on-device.

Key capabilities of Poolside

• Laguna S 2.1: 118B parameters, 8B active, 1M context, positioned as frontier-class reasoning at mid-size cost.
• Laguna XS 2.1: 33B parameters, 3B active, 256K context, light enough for on-device use.
• Open weights: downloadable from Hugging Face for self-hosting.
• Government deployments: a dedicated offering for mission-focused customers.
• Research-preview products: product experiences built on earlier Laguna M.1 and XS.2 models.

How Poolside works

Developers download the open weights from Hugging Face and run them on their own infrastructure, or run the smaller model on a device. Government customers deploy through a dedicated program. The Poolside site does not describe a hosted cloud API.

Who uses Poolside?

Engineering teams that want to control their own coding model infrastructure, researchers and developers using open weights, and government customers are the audiences the site addresses.

Poolside pricing

Poolside does not publish pricing or a quote process on its main page. The open weights are available to download, and deployment terms for government and enterprise use are arranged with the vendor.

Poolside alternatives

Cursor is an AI code editor that uses third-party models and focuses on the in-editor experience. Tabnine is an AI coding assistant with privacy-oriented deployment options. Zencoder offers AI coding agents inside the IDE and in pull request workflows.