What is the difference between Laguna S 2.1 (free) and Qwen3.5 397B A17B?

Laguna S 2.1 (free) is developed by Poolside while Qwen3.5 397B A17B is developed by Qwen. Laguna S 2.1 (free) has a 262K token context window vs Qwen3.5 397B A17B's 262K. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, Laguna S 2.1 (free) or Qwen3.5 397B A17B?

It depends on your use case. Laguna S 2.1 (free) and Qwen3.5 397B A17B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How much does Laguna S 2.1 (free) cost compared to Qwen3.5 397B A17B?

Laguna S 2.1 (free) costs $0/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Laguna S 2.1 (free) is $0.60/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Laguna S 2.1 (free) and Qwen3.5 397B A17B on Rival?

This page shows a side-by-side comparison of Laguna S 2.1 (free) and Qwen3.5 397B A17B 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.

Updated Jul 2026

Laguna S 2.1 (free)vsQwen3.5 397B A17B

Laguna S 2.1 (free) is cheaper than Qwen3.5 397B A17B at $0/M vs $0.6/M input tokens.

Laguna S 2.1 (free) and Qwen3.5 397B A17B compared across 10 shared prompts
Spec	Laguna S 2.1 (free)	Qwen3.5 397B A17B
Input price	Free	$0.6/M tokens
Output price	Free	$3.6/M tokens
Context window	262K tokens	262K tokens
Weights	—	Open
Free API (OpenRouter)	Yes (1 provider)	No
Released	Jul 2026	Feb 2026

Side by side

Same prompt, both answers

Opening lines from 3 of the 10 prompts both answered. Formatting stripped, words untouched.

Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

Laguna S 2.1 (free)275 words

I'll analyze each clause for potential exploitation against the contractor and suggest improvements. Exploitable Clauses & Recommended Modifications SCOPE CLAUSE Problem: "Client reserves the right to modify the scope at any time without additional compensation" Allows unlimited scope creep without extra pay No…

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Qwen3.5 397B A17B1,220 words

Disclaimer: I am an artificial intelligence, not an attorney. The following analysis is for informational and educational purposes only and does not constitute legal advice or create an attorney-client relationship. Contract laws vary significantly by jurisdiction (e.g., California vs. New York vs. UK).

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Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

Laguna S 2.1 (free)1,140 words

Comprehensive 3-Month Longevity Optimization Plan Phase 1: Foundation & Assessment (Month 1) Week 1-2: Baseline Establishment Comprehensive Health Testing Complete blood panel (CBC, CMP, lipid panel, inflammatory markers: hs-CRP, IL-6) Hormone panel (testosterone, estrogen, DHEA, cortisol, thyroid panel) Genetic…

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Qwen3.5 397B A17B1,071 words

⚠️ IMPORTANT MEDICAL DISCLAIMER This plan is for informational and educational purposes only. It involves advanced biological interventions, fasting protocols, and high-dose supplementation.

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Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

Laguna S 2.1 (free)910 words

INTERNAL INVESTMENT COMMITTEE MEMO 1. Recommendation & Thesis Recommendation: LONG 12-Month Price Target Range: $62 – $75/share Thesis: LedgerLift is a high-quality B2B SaaS platform with strong recurring revenue, exceptional unit economics, and durable customer retention.

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Qwen3.5 397B A17B707 words

INVESTMENT COMMITTEE MEMO TO: Investment Committee FROM: TMT Investment Team DATE: October 26, 2023 SUBJECT: LedgerLift (LLLT) – Initiation Coverage Recommendation Rating: LONG 12-Month Price Target: $52 – $58 Thesis: LedgerLift combines best-in-class retention (123% NRR) with a fortress balance sheet ($1.4B net cash)…

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Our Verdict

Laguna S 2.1 (free)

Qwen3.5 397B A17B

Not enough votes to call it. On the specs, nothing separates them.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Laguna S 2.1 (free)

Input

$0.000

Output

$0.000

Qwen3.5 397B A17B

Input

$0.60

Output

$3.60

Where to run it

11 hosts, cheapest first

Laguna S 2.1 (free)1 host

HostInOutContextUptime

Poolsidefp4$0 in$0 out262k100% up

Qwen3.5 397B A17B10 hosts

HostInOutContextUptime

Alibaba Cloud$0.39 in$2.34 out262k99.9% up DeepInfrafp8$0.45 in$3.00 out262k97% up Parasailfp8$0.50 in$3.60 out262k99.2% up AtlasCloudfp8$0.55 in$3.50 out262k96% up DigitalOcean$0.55 in$3.50 out131k90.3% up Phala$0.55 in$3.50 out262k98.7% up

4 more hosts

GMI Cloudfp8$0.60 in$3.60 out262k83.5% up Novita$0.60 in$3.60 out262k97.4% up StreamLake$0.60 in$3.60 out256k97.4% up Venice$0.75 in$4.50 out128k73.2% up

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

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Same prompt, both answers

Adversarial Contract Review

Advanced Longevity Plan (Biohacker)

Advanced Investment Memo (IC Memo)

Cost per 1M tokens

11 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between Laguna S 2.1 (free) and Qwen3.5 397B A17B?

Which is better, Laguna S 2.1 (free) or Qwen3.5 397B A17B?

How much does Laguna S 2.1 (free) cost compared to Qwen3.5 397B A17B?

How can I compare Laguna S 2.1 (free) and Qwen3.5 397B A17B on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages

Same prompt, both answers

Adversarial Contract Review

Advanced Longevity Plan (Biohacker)

Advanced Investment Memo (IC Memo)

Cost per 1M tokens

11 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between Laguna S 2.1 (free) and Qwen3.5 397B A17B?

Which is better, Laguna S 2.1 (free) or Qwen3.5 397B A17B?

How much does Laguna S 2.1 (free) cost compared to Qwen3.5 397B A17B?

How can I compare Laguna S 2.1 (free) and Qwen3.5 397B A17B on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages