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  5. Laguna S 2.1 (free)vsSeed 2.1 Turbo
Updated Aug 2026

Laguna S 2.1 (free)vsSeed 2.1 Turbo

Laguna S 2.1 (free) is cheaper than Seed 2.1 Turbo at $0/M vs $0.5/M input tokens.

Laguna S 2.1 (free) and Seed 2.1 Turbo compared across 10 shared prompts
SpecLaguna S 2.1 (free)Seed 2.1 Turbo
Input priceFree$0.5/M tokens
Output priceFree$2.5/M tokens
Context window262K tokens262K tokens
Free API (OpenRouter)Yes (1 provider)No
ReleasedJul 2026Aug 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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Seed 2.1 Turbo1,851 words
This analysis is general in nature and not a substitute for legal advice from a licensed attorney in your jurisdiction, as contract law varies significantly by location and context. Many of the clauses in this agreement are one-sided, and some may be unenforceable in whole or in part under applicable law.
Read the full answer

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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Seed 2.1 Turbo1,319 words
3-Month Cutting-Edge Longevity & Performance Biohacker Plan This progressive, data-driven plan is designed for healthy intermediate-to-advanced biohackers aiming to slow biological aging, maximize physical/cognitive performance, and build sustainable resilience.
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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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Seed 2.1 Turbo1,030 words
Internal Investment Committee Memo Ticker: LLLT (LedgerLift) Current Price: $46 Recommendation: Short 12-Month PT Range: $22 – $42 Base Case PT: $30 Thesis: LedgerLift is a high-quality mid-market spend management and AP automation SaaS with best-in-class 123% NRR, 6% logo churn, and 18-month CAC payback, supported by…
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Our Verdict
Laguna S 2.1 (free)
Laguna S 2.1 (free)
Seed 2.1 Turbo
Seed 2.1 Turbo

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
Seed 2.1 Turbo
Input
$0.50
Output
$2.50
Where to run it

2 hosts

Laguna S 2.1 (free)1 host
HostInOutContextUptime
PPoolsidefp4$0 in·$0 out·262k·100% up
Seed 2.1 Turbo1 host
HostInOutContextUptime
ByteDance Seedfp8$0.50 in·$2.50 out·262k·99.9% 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 Seed 2.1 Turbo is developed by ByteDance. Laguna S 2.1 (free) has a 262K token context window vs Seed 2.1 Turbo's 262K. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

It depends on your use case. Laguna S 2.1 (free) and Seed 2.1 Turbo 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.

Laguna S 2.1 (free) costs $0/M input tokens and Seed 2.1 Turbo costs $0.5/M input tokens. Laguna S 2.1 (free) is $0.50/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 Seed 2.1 Turbo 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

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Laguna S 2.1 (free)10 outputs, specs and price
Seed 2.1 Turbo logo
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