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  5. Nex-N2.5-Mini (free)vsPolaris Alpha
Updated Sep 2026

Nex-N2.5-Mini (free)vsPolaris Alpha

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

Nex-N2.5-Mini (free) and Polaris Alpha compared across 2 shared prompts
SpecNex-N2.5-Mini (free)Polaris Alpha
Input priceFreeFree
Output priceFreeFree
Context window262K tokens256K tokens
Free API (OpenRouter)Yes (1 provider)No
ReleasedSep 2026Nov 2025
Side by side

Same prompt, both answers

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

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…

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
Polaris Alpha186 words
Dish: Golden Pantry Butter Rice Ingredients (7 total): White rice (1 cup, uncooked) Butter (2 tbsp) Onion (1 small, finely chopped) Garlic (2 cloves, minced) Chicken or vegetable broth (2 cups) – or water + 1 bouillon cube Salt Black pepper Instructions: Rinse the rice under cold water until it runs mostly clear; drain…
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…

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
Polaris Alpha763 words
Great goal—and smart to keep it simple. Here’s a beginner-friendly, 1‑month plan built around 3 pillars: Daily movement Better eating Sleep & stress Assumptions: generally healthy adult, no major medical issues. If you have conditions, meds, or pain, check with a doctor before changing exercise/diet.
Read the full answer
Our Verdict
Nex-N2.5-Mini (free)
Nex-N2.5-Mini (free)
Polaris Alpha
Polaris Alpha

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

Too close to call
API pricing

Cost per 1M tokens

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

1 host

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

No hosts listed on OpenRouter.

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

Research

What we learned reading every model

FAQ

Common questions

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

It depends on your use case. Nex-N2.5-Mini (free) and Polaris Alpha 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.

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

Nex-N2.5-Mini (free) logo
Nex-N2.5-Mini (free)15 outputs, specs and price
Polaris Alpha logo
Polaris Alpha35 outputs, specs and price
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