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

Laguna XS 2.1 (free)vsQwen3.8 Flash

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

Laguna XS 2.1 (free) and Qwen3.8 Flash compared across 5 shared prompts
SpecLaguna XS 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
Side by side

Same prompt, both answers

Opening lines from 2 of the 5 prompts both answered. Formatting stripped, words untouched.

Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

Laguna XS 2.1 (free)610 words
For the Software Engineer Think of training a language model like building a distributed prediction system with an incredibly complex API contract. Instead of training on labeled datasets where you explicitly tell it "this text is sentiment-positive," you're feeding it massive amounts of text and asking it to predict…
Read the full answer
Qwen3.8 Flash983 words
For an experienced software engineer Training a large language model is not “just” making it guess the next word in isolation. It is fitting an enormous parameterized function to predict the next token conditioned on all previous tokens in a sequence.
Read the full answer

Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

Laguna XS 2.1 (free)409 words
1-Month Health & Longevity Plan Focus Areas: Diet, Exercise, Sleep Week 1: Start with Foundational Habits Diet: Action: Add 1 serving of fruit or vegetables daily (e.g., a banana with breakfast, a side salad with lunch). Why: Boosts nutrient intake and fiber.
Read the full answer
Qwen3.8 Flash368 words
1-Month Beginner Health & Longevity Plan Focus areas: Nutrition, Movement, Sleep Week 1: Build the basics Nutrition Add 1 serving of vegetables to 2 meals per day. Drink water with each meal. Choose protein at most meals: eggs, beans, tofu, chicken, fish, yogurt. Movement Walk 10–15 minutes daily.
Read the full answer
Our Verdict
Qwen3.8 Flash
Qwen3.8 Flash
Laguna XS 2.1 (free)
Laguna XS 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 XS 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 XS 2.1 (free)1 host
HostInOutContextUptime
PPoolsidefp8$0 in·$0 out·262k·99.8% 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 XS 2.1 (free) is developed by Poolside while Qwen3.8 Flash is developed by Qwen. Laguna XS 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 XS 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 XS 2.1 (free) costs $0/M input tokens and Qwen3.8 Flash costs $0.15/M input tokens. Laguna XS 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 XS 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 XS 2.1 (free) logo
Laguna XS 2.1 (free)11 outputs, specs and price
Qwen3.8 Flash logo
Qwen3.8 Flash8 outputs, specs and price
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