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  5. Laguna S 2.1 (free)vsQwen3.8 Flash
Updated Aug 2026

Laguna S 2.1 (free)vsQwen3.8 Flash

Laguna S 2.1 (free) is cheaper than Qwen3.8 Flash at $0/M vs $0.15/M input tokens.

Laguna S 2.1 (free) and Qwen3.8 Flash compared across 5 shared prompts
SpecLaguna S 2.1 (free)Qwen3.8 Flash
Input priceFree$0.15/M tokens
Output priceFree$0.47/M tokens
Context window262K tokens1.0M tokens
Weights—Closed
Free API (OpenRouter)Yes (1 provider)No
ReleasedJul 2026Aug 2026
Our Verdict
Qwen3.8 Flash
Qwen3.8 Flash
Laguna S 2.1 (free)
Laguna S 2.1 (free)Runner-up

Not enough votes to call it. On the specs, Qwen3.8 Flash has the edge: newer, bigger context window.

Too close to call
API pricing

Cost per 1M tokens

Laguna S 2.1 (free)
Input
$0.000
Output
$0.000
Qwen3.8 Flash
Input
$0.15
Output
$0.47
Where to run it

2 hosts

Laguna S 2.1 (free)1 host
HostInOutContextUptime
PPoolsidefp4$0 in·$0 out·262k·100% up
Qwen3.8 Flash1 host
HostInOutContextUptime
Alibaba Cloud$0.15 in·$0.47 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Laguna S 2.1 (free) is developed by Poolside while Qwen3.8 Flash is developed by Qwen. Laguna S 2.1 (free) has a 262K token context window vs Qwen3.8 Flash's 1.0M. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.

It depends on your use case. Laguna S 2.1 (free) and Qwen3.8 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 5 challenges so you can judge which fits your needs best.

Laguna S 2.1 (free) costs $0/M input tokens and Qwen3.8 Flash costs $0.15/M input tokens. Laguna S 2.1 (free) is $0.15/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of Laguna S 2.1 (free) and Qwen3.8 Flash across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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Model pages

Laguna S 2.1 (free) logo
Laguna S 2.1 (free)10 outputs, specs and price
Qwen3.8 Flash logo
Qwen3.8 Flash8 outputs, specs and price
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