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  5. Horizon BetavsLaguna XS 2.1 (free)
Updated Jul 2026

Horizon BetavsLaguna XS 2.1 (free)

Laguna XS 2.1 (free) has a larger context window than Horizon Beta (262K tokens vs 256K tokens).

Horizon Beta and Laguna XS 2.1 (free) compared across 4 shared prompts
SpecHorizon BetaLaguna XS 2.1 (free)
Input priceFreeFree
Output priceFreeFree
Context window256K tokens262K tokens
Free API (OpenRouter)NoYes (1 provider)
ReleasedAug 2025Jul 2026
Side by side

Same prompt, both answers

Opening lines from 3 of the 4 prompts both answered. Formatting stripped, words untouched.

Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

Horizon Beta1,780 words
Dish Title: “Tide and Tundra” — King Crab, Koji-Cured Venison, Fir, and Sea Lettuce with Frozen Dashi Meringue, Burnt Whey Caramel, and Bitter Cocoa Soil Conceptual Narrative: This dish explores the meeting point between ocean and boreal forest—an imagined shoreline where cold waves meet coniferous wind.
Read the full answer
Laguna XS 2.1 (free)602 words
Recipe: "Nocturne of Shadows and Light" Concept: A poetic exploration of ancient flavors (pomegranate, quince) intertwined with modernist techniques (spherification, sous vide) and an unexpected coffee-cocoa depth, harmonizing the boldness of game with the elegance of fruit.
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…

Horizon Beta1,720 words
I can offer a detailed, research-informed, experimental framework for a 3‑month longevity and performance plan. This is educational, not medical advice. Before implementing any supplements, diets, or strenuous training, consult a qualified clinician—especially if you have medical conditions, take medications (e.g.…
Read the full answer
Laguna XS 2.1 (free)828 words
3-Month Longevity & Performance Optimization Plan for a Biohacker Designed for advanced biohackers with a focus on longevity, cognitive sharpness, and peak physical performance. Assumes access to basic medical testing, wearables, and some advanced tools (e.g., neurofeedback apps).
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…

Horizon Beta739 words
Here’s a simple, beginner-friendly 1-month plan focusing on three foundations: diet, exercise, and sleep. It’s designed to be realistic, habit-based, and sustainable. Key principles Start small, be consistent. Track basics (steps, sleep, water). Adjust if something feels too hard—aim for “easy but consistent.”
Read the full answer
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
Our Verdict
Horizon Beta
Horizon Beta
Laguna XS 2.1 (free)
Laguna XS 2.1 (free)

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

Horizon Beta
Input
$0.000
Output
$0.000
Laguna XS 2.1 (free)
Input
$0.000
Output
$0.000
Where to run it

1 host

Horizon Beta

No hosts listed on OpenRouter.

Laguna XS 2.1 (free)1 host
HostInOutContextUptime
PPoolsidefp8$0 in·$0 out·262k·99.8% up

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

Research

What we learned reading every model

FAQ

Common questions

Horizon Beta is developed by OpenRouter while Laguna XS 2.1 (free) is developed by Poolside. Horizon Beta has a 256K token context window vs Laguna XS 2.1 (free)'s 262K. You can compare their actual outputs across 4 challenges on Rival to see how they differ in practice.

It depends on your use case. Horizon Beta and Laguna XS 2.1 (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 4 challenges so you can judge which fits your needs best.

Horizon Beta costs $0/M input tokens and Laguna XS 2.1 (free) costs $0/M input tokens. Laguna XS 2.1 (free) is $0.00/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 Horizon Beta and Laguna XS 2.1 (free) 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

Horizon Beta logo
Horizon Beta41 outputs, specs and price
Laguna XS 2.1 (free) logo
Laguna XS 2.1 (free)11 outputs, specs and price
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