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  5. Horizon AlphavsNex-N2.5-Mini (free)
Updated Sep 2026

Horizon AlphavsNex-N2.5-Mini (free)

Nex-N2.5-Mini (free) has a larger context window than Horizon Alpha (262K tokens vs 256K tokens).

Horizon Alpha and Nex-N2.5-Mini (free) compared across 2 shared prompts
SpecHorizon AlphaNex-N2.5-Mini (free)
Input priceFreeFree
Output priceFreeFree
Context window256K tokens262K tokens
Free API (OpenRouter)NoYes (1 provider)
ReleasedJul 2025Sep 2026
Side by side

Same prompt, both answers

Opening lines from every prompt both answered. Formatting stripped, words untouched.

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 Alpha698 words
Here’s a simple, beginner-friendly 1‑month plan focused on diet, exercise, and sleep. It’s designed to be realistic, build consistency, and show quick wins. Overall approach Keep it simple: small daily actions beat perfection. Track 3 basics daily: steps, protein at meals, sleep duration.
Read the full answer
Nex-N2.5-Mini (free)671 words
1-Month Beginner Health & Longevity Plan Goal: Build 3 simple habits you can maintain: better food choices, regular movement, and better recovery through sleep/stress management. If you have medical conditions, injuries, or take medications, check with a healthcare professional before starting.
Read the full answer

Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

Horizon Alpha207 words
Golden Maple Soy Glazed Chickpeas Ingredients (7 pantry staples) 1 can (15 oz) chickpeas, drained and rinsed 2 tbsp soy sauce 1 tbsp maple syrup (or honey) 1 tbsp olive oil 1 tsp garlic powder 1/2 tsp smoked paprika (or regular paprika) Pinch of red pepper flakes (optional) + salt to taste Instructions Dry the…
Read the full answer
Nex-N2.5-Mini (free)111 words
Golden Peanut Lantern Noodles Time: Prep 5 min Cook 10 min Serves: 2 Ingredients — 7 pantry staples Spaghetti or any noodles Peanut butter Soy sauce Honey Garlic powder Rice vinegar Water Instructions Cook the noodles: Boil noodles in water until tender. Reserve about ½ cup cooking water, then drain.
Read the full answer
Our Verdict
Horizon Alpha
Horizon Alpha
Nex-N2.5-Mini (free)
Nex-N2.5-Mini (free)

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

Too close to call
API pricing

Cost per 1M tokens

Horizon Alpha
Input
$0.000
Output
$0.000
Nex-N2.5-Mini (free)
Input
$0.000
Output
$0.000
Where to run it

1 host

Horizon Alpha

No hosts listed on OpenRouter.

Nex-N2.5-Mini (free)1 host
HostInOutContextUptime
NNex AGIbf16degraded$0 in·$0 out·262k·92.2% up

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

Research

What we learned reading every model

FAQ

Common questions

Horizon Alpha is developed by OpenRouter while Nex-N2.5-Mini (free) is developed by Nex AGI. Horizon Alpha has a 256K token context window vs Nex-N2.5-Mini (free)'s 262K. You can compare their actual outputs across 2 challenges on Rival to see how they differ in practice.

It depends on your use case. Horizon Alpha and Nex-N2.5-Mini (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 2 challenges so you can judge which fits your needs best.

Horizon Alpha costs $0/M input tokens and Nex-N2.5-Mini (free) costs $0/M input tokens. Nex-N2.5-Mini (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 Alpha and Nex-N2.5-Mini (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

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