Poolside

Laguna S 2.1 (free)

Free model by Poolside · 262K context · tools, reasoning, open weights, free.

Prices checked Oct 21, 2026 · tracked by LLM Cost Index since Oct 21, 2026

Scheduled for retirement on 2026-10-31. Plan a replacement — see the cheaper alternatives below.
$0
input / 1M tokens
$0
output / 1M tokens
262K
context window
33K
max output

Price history

We started tracking Laguna S 2.1 (free) on Oct 21, 2026; the chart appears as soon as there is a second data point. See all recent price changes.

What to switch to before Laguna S 2.1 (free) is retired

Replacements with the same must-have capabilities (tool calling) and enough context, most capable first. See all models being retired.

ReplacementInput / 1MOutput / 1MPrice vs today
Claude Opus 5.5$4.00$20.00 —
Claude Sonnet 5.5$2.00$10.00 —
Claude Fable 5.1$10.00$50.00 —
GPT-6 Astra$10.00$50.00 —

Specifications

Model IDpoolside/laguna-s-2.1:free
Inputtext
Outputtext
Tool callingYes
Structured outputNo
Reasoning modeYes
Open weightsYes — poolside/Laguna-S-2.1
ReleasedJul 21, 2026

FAQ

What is the context window of Laguna S 2.1 (free)?
262K tokens, with up to 33K output tokens per response.
Does Laguna S 2.1 (free) support images, tools and structured output?
Images as input: no. Tool calling: yes. Structured (JSON) output: no. Reasoning mode: yes.

More from Poolside: all Poolside models · how we collect prices