Laguna S 2.1 is now available on AI Gateway
Laguna S 2.1 now available on Vercel's AI Gateway — 1M context window, agentic coding specialization, zero platform markup.

Why it matters
Vercel expands AI Gateway model catalog with Poolside's MoE specialist for coding agents. Matters because it signals Vercel's strategy to commoditize model access (no markup, unified API) while backing long-context agentic workflows—a key developer product move.
The key facts
6 to knowLaguna S 2.1 is open-weight MoE model with 1M token context window
Two versions: free (256K context) and paid (1M context)
70.2% on Terminal-Bench 2.1, 78.5% on SWE-bench Multilingual, 59.4% on SWE-Bench Pro in thinking mode
Specializes in agentic coding, debugging, testing, browser-based tooling, MLOps, AI research
AI Gateway offers: zero data retention, custom reporting, budgets, routing rules, failover, no platform inference fee, no markup on provider pricing
Available via poolside/laguna-s-2.1-free and poolside/laguna-s-2.1 model IDs
Go to the source
Vercel Blogvercel.com
Publisher excerpt: is now available on AI Gateway. There are 2 versions of the model available:Laguna S 2.1 from Poolside Laguna S 2.1 is an open-weight Mixture-of-Experts model that supports a context window of up to 1M tokens and runs in thinking and no-thinking modes. The model specializes in agentic coding and…