LLM Perks

Laguna S 2.1

Poolside · All Laguna models
Free right now Small
ReasoningCodingLong context

Laguna S 2.1 is a language model from Poolside. It is currently free at 4 providers with up to 1M tokens of context. The model supports step-by-step reasoning, is suited to coding.

Developer
Poolside
Context
1M tokens
Type
Text

Where to use Laguna S 2.1 for free

Each row is a separate free endpoint with its own limits.

ProviderContextLimitCard
OpenRouter
poolside/laguna-s-2.1:free
262K Free tier No Open
Vercel AI Gateway
poolside/laguna-s-2.1-free
256K A valid payment card must be on file even for zero-price models. Free promotions may change; availability is refreshed from the Models API. Yes Open
Nous Portal
poolside/laguna-s-2.1:free
262K The $0 Portal plan includes free models with standard rate limits. Model availability can change. No Open
UnoRouter
laguna-s-2.1:free
1M No-card free models use shared capacity and per-model limits; availability can change. No Open

Quick start

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "poolside/laguna-s-2.1:free",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Example for OpenRouter. Any OpenAI-compatible client works: Cursor, Cline, OpenCode, Open WebUI.

Benchmarks

This model is not on the Artificial Analysis leaderboard yet. We do not publish our own estimates.

Similar free models

FAQ

Is Laguna S 2.1 free?

Yes. As of September 26, 2026, Laguna S 2.1 is free at OpenRouter, Vercel AI Gateway, Nous Portal, UnoRouter. Each provider has its own limits — see the table above.

What is the context window of Laguna S 2.1?

The largest context among free routes is 1,048,576 tokens. Some providers cap it lower.

How do I call Laguna S 2.1 via API?

Use any OpenAI-compatible client with base URL https://openrouter.ai/api/v1, model ID poolside/laguna-s-2.1:free, and a OpenRouter key.