# Laguna S 2.1 is now available on AI Gateway

By Steven Van · 2026-07-21

Poolside's open-weight model ships free with a 256K context window or paid with 1M, and runs in thinking and no-thinking modes.

[Vercel](<https://creatorstoolbox.com/tools/vercel>)'s AI Gateway [now supports](<https://vercel.com/docs/ai-gateway/authentication-and-byok/api-keys>) Laguna S 2.1, an open-weight Mixture-of-Experts model from Poolside built for agentic coding and long-running tasks such as writing and debugging code, running tests, building browser-based tooling, and working on MLOps pipelines and AI research.

The model comes in two versions: a free **poolside/laguna-s-2.1-free** with a 256K context window, and a paid **poolside/laguna-s-2.1** with a 1M context window. Both run in thinking and no-thinking modes. In thinking mode, Laguna S 2.1 reports 70.2% on Terminal-Bench 2.1, 78.5% on SWE-bench Multilingual, and 59.4% on SWE-Bench Pro.

[![](<https://vercel.com/api/docs-og?title=API%20Keys&format=docs&sig=7c0ef5ce358e16896035bba21c75a459310fa6b128f31db7b582b93f1a473320&category=Build%20AI%20apps&subcategory=AI%20Gateway&subcategory2=Authentication%20%26%20BYOK>)](<https://vercel.com/docs/ai-gateway/authentication-and-byok/api-keys>)

![Vercel](<https://www.google.com/s2/favicons?domain=vercel.com&sz=128>)

Vercel

The platform for frontend developers — deploy, preview, and scale web apps and AI agents with zero config.

[View Vercel →](<https://creatorstoolbox.com/tools/vercel>)

Sources

[Original source](<https://vercel.com/docs/ai-gateway/authentication-and-byok/api-keys>)

[Read Laguna S 2.1 is now available on AI Gateway on Creators Toolbox](<https://creatorstoolbox.com/blog/vercel-laguna-s-2-1-is-now-available-on-ai-gateway>)

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Canonical source: https://creatorstoolbox.com/blog/vercel-laguna-s-2-1-is-now-available-on-ai-gateway