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  5. Gemma 4 31BvsNex-N2.5-Mini (free)
Updated Sep 2026

Gemma 4 31BvsNex-N2.5-Mini (free)

Nex-N2.5-Mini (free) is cheaper than Gemma 4 31B at $0/M vs $0.14/M input tokens.

Gemma 4 31B and Nex-N2.5-Mini (free) compared across 14 shared prompts
SpecGemma 4 31BNex-N2.5-Mini (free)
Input price$0.14/M tokensFree
Output price$0.4/M tokensFree
Context window262K tokens262K tokens
WeightsOpen—
Free API (OpenRouter)Yes (1 provider)Yes (1 provider)
ReleasedApr 2026Sep 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 14 prompts both answered. Formatting stripped, words untouched.

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

Gemma 4 31B688 words
If the transistor had been invented in 1920, the "Information Age" would have shifted its starting line by nearly three decades. This isn't just a matter of gadgets appearing earlier; it is a fundamental shift in the timing of the transition from the Industrial Age to the Digital Age.
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Nex-N2.5-Mini (free)2,076 words
A 1920 transistor would not by itself prevent fascism, the Great Depression, or imperial expansion, so World War II might still happen. But it would make electronics 10–20 years more advanced than in our timeline, with huge effects on radar, codebreaking, computing, missiles, space, consumer goods, and Cold War power…
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Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

Gemma 4 31B663 words
Disclaimer: I am an AI, not a doctor. The following plan involves potent supplements, intense physical exertion, and restrictive dietary patterns. Consult with a physician and get a full blood panel (including ApoB, HbA1c, and inflammatory markers like hs-CRP) before starting this protocol.
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Nex-N2.5-Mini (free)3,213 words
Below is a 12-week longevity/performance protocol for a generally healthy adult. It is not medical advice. Before starting—especially if you have diabetes, hypertension, arrhythmia, kidney/liver disease, a history of eating disorders, are pregnant, or take medications—get clinician clearance and use labs to personalize…
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…

Gemma 4 31B222 words
Here is a recipe for a rich, comforting dessert that tastes like a gourmet treat but uses basic staples. 🍯 Golden Velvet Honey Cakes A warm, gooey, single-serving cake that bridges the gap between a brownie and a sponge cake.
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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.
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Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

Gemma 4 31B691 words
This architecture contains several critical flaws that would make it unusable for a real-time collaborative experience. The most severe issues are the lack of a global synchronization mechanism, unreliable conflict resolution, and inefficient data persistence.
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Nex-N2.5-Mini (free)1,869 words
The biggest red flags are: client-clock LWW for document content, polling PostgreSQL for real-time fanout, CDN caching mutable authenticated APIs, per-server WebSocket state with no durable replay, and full HTML snapshots as the main save mechanism.
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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…

Gemma 4 31B548 words
This plan is designed for sustainability, not intensity. The goal of Month 1 is to build "minimum viable habits"—small wins that prove to your brain that a healthier lifestyle is achievable. We will focus on three pillars: Nutrition, Movement, and Sleep.
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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.
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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…

Gemma 4 31B685 words
Dish Title: The Silent Forest Conceptual Narrative: This dish is an exploration of "Terroir and Tension." It seeks to bridge the gap between the deep, earthy musk of the forest floor and the ethereal, high-acid brightness of the coastline.
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Nex-N2.5-Mini (free)1,368 words
Dish: “Nocturne in Green” — Miso-Cured Turbot, Black Garlic, Green Olive, Oak-Smoked Pear, and Black Carrot Caviar Conceptual narrative: A moonlit orchard beside a cold northern sea.
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Our Verdict
Gemma 4 31B
Gemma 4 31B
Nex-N2.5-Mini (free)
Nex-N2.5-Mini (free)Runner-up

Not enough votes to call it. On the specs, Gemma 4 31B has the edge: bigger model tier, major provider backing.

Too close to call
API pricing

Cost per 1M tokens

Gemma 4 31B
Input
$0.14
Output
$0.40
Nex-N2.5-Mini (free)
Input
$0.000
Output
$0.000
Where to run it

12 hosts, cheapest first

Gemma 4 31B11 hosts
HostInOutContextUptime
DDeepInfrafp4$0.09 in·$0.34 out·262k·97.5% upCCoreWeavefp4$0.10 in·$0.34 out·262k·97.1% upVVenicefp4$0.12 in·$0.36 out·256k·96.2% upCChutesfp4$0.12 in·$0.37 out·131k·92.7% upCCrusoebf16$0.14 in·$0.40 out·262k·97.5% upFFriendli$0.14 in·$0.40 out·262k·92.6% up
5 more hostsFewer hosts
NNovitabf16$0.14 in·$0.40 out·262k·87.2% upPParasailfp8$0.15 in·$0.40 out·262k·99.1% upSSambaNova$0.38 in·$1.15 out·131k·96.8% upMModelRunfp4$0.75 in·$1.00 out·262k·100% upSSiliconFlowfp8$0.75 in·$1.00 out·262k·43.1% up
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

Gemma 4 31B is developed by Google AI while Nex-N2.5-Mini (free) is developed by Nex AGI. Gemma 4 31B has a 262K token context window vs Nex-N2.5-Mini (free)'s 262K. You can compare their actual outputs across 14 challenges on Rival to see how they differ in practice.

It depends on your use case. Gemma 4 31B and Nex-N2.5-Mini (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 14 challenges so you can judge which fits your needs best.

Gemma 4 31B costs $0.14/M input tokens and Nex-N2.5-Mini (free) costs $0/M input tokens. Nex-N2.5-Mini (free) is $0.14/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 Gemma 4 31B 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

Gemma 4 31B logo
Gemma 4 31B49 outputs, specs and price
Nex-N2.5-Mini (free) logo
Nex-N2.5-Mini (free)15 outputs, specs and price
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