What is the difference between Laguna S 2.1 (free) and Mistral Medium 3.1?

Laguna S 2.1 (free) is developed by Poolside while Mistral Medium 3.1 is developed by Mistral AI. Laguna S 2.1 (free) has a 262K token context window vs Mistral Medium 3.1's 131K. 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 Mistral Medium 3.1?

It depends on your use case. Laguna S 2.1 (free) and Mistral Medium 3.1 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 Mistral Medium 3.1?

Laguna S 2.1 (free) costs $0/M input tokens and Mistral Medium 3.1 costs $0.4/M input tokens. Laguna S 2.1 (free) is $0.40/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 Mistral Medium 3.1 on Rival?

This page shows a side-by-side comparison of Laguna S 2.1 (free) and Mistral Medium 3.1 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)vsMistral Medium 3.1

Laguna S 2.1 (free) is cheaper than Mistral Medium 3.1 at $0/M vs $0.4/M input tokens.

Laguna S 2.1 (free) and Mistral Medium 3.1 compared across 10 shared prompts
Spec	Laguna S 2.1 (free)	Mistral Medium 3.1
Input price	Free	$0.4/M tokens
Output price	Free	$2/M tokens
Context window	262K tokens	131K tokens
Free API (OpenRouter)	Yes (1 provider)	No
Released	Jul 2026	Aug 2025

Side by side

Same prompt, both answers

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

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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Mistral Medium 3.1552 words

3-Month Cutting-Edge Longevity & Performance Optimization Plan For the Advanced Biohacker This plan integrates nutrigenomics, metabolic flexibility, epigenetic modulation, neuroplasticity enhancement, and precision biometrics to maximize lifespan, healthspan, cognitive function, and physical performance.

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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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Mistral Medium 3.11,579 words

This contract is extremely one-sided and contains multiple exploitative clauses that could severely disadvantage the contractor. Below is a breakdown of the problematic clauses, suggested modifications, and the legal reasoning behind them. 1.

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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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Mistral Medium 3.1497 words

LedgerLift (LLLT) – Investment Committee Memo Recommendation: LONG (12-month PT range: $65–$85) Thesis: LedgerLift is a high-quality, mid-market B2B spend management leader with durable unit economics (123% NRR, 18-month CAC payback) and a path to 25%+ EBIT margins, trading at a ~20% discount to peers on FY25…

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Our Verdict

Laguna S 2.1 (free)

Mistral Medium 3.1Runner-up

Not enough votes to call it. On the specs, Laguna S 2.1 (free) has the edge: newer, bigger context window.

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

Mistral Medium 3.1

Input

$0.40

Output

$2.00

Where to run it

2 hosts

Laguna S 2.1 (free)1 host

HostInOutContextUptime

Poolsidefp4$0 in$0 out262k100% up

Mistral Medium 3.11 host

HostInOutContextUptime

Mistral$0.40 in$2.00 out131k99.5% 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

Advanced Longevity Plan (Biohacker)

Adversarial Contract Review

Advanced Investment Memo (IC Memo)

Cost per 1M tokens

2 hosts

What we learned reading every model

Common questions

What is the difference between Laguna S 2.1 (free) and Mistral Medium 3.1?

Which is better, Laguna S 2.1 (free) or Mistral Medium 3.1?

How much does Laguna S 2.1 (free) cost compared to Mistral Medium 3.1?

How can I compare Laguna S 2.1 (free) and Mistral Medium 3.1 on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages

Same prompt, both answers

Advanced Longevity Plan (Biohacker)

Adversarial Contract Review

Advanced Investment Memo (IC Memo)

Cost per 1M tokens

2 hosts

What we learned reading every model

Common questions

What is the difference between Laguna S 2.1 (free) and Mistral Medium 3.1?

Which is better, Laguna S 2.1 (free) or Mistral Medium 3.1?

How much does Laguna S 2.1 (free) cost compared to Mistral Medium 3.1?

How can I compare Laguna S 2.1 (free) and Mistral Medium 3.1 on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages