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  5. GPT-4.1 NanovsNova Premier 1.0
Updated Oct 2025

GPT-4.1 NanovsNova Premier 1.0

GPT-4.1 Nano is cheaper than Nova Premier 1.0 at $0.1/M vs $2.5/M input tokens.

GPT-4.1 Nano and Nova Premier 1.0 compared across 51 shared prompts
SpecGPT-4.1 NanoNova Premier 1.0
Input price$0.1/M tokens$2.5/M tokens
Output price$0.4/M tokens$12.5/M tokens
Context window1.0M tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedApr 2025Oct 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 51 prompts both answered. Formatting stripped, words untouched.

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

GPT-4.1 Nano370 words
[Start with a relatable observation] You ever notice that the more technology advances, the more we have to check if it's working? I mean, I bought a smart coffee maker. It's supposed to brew my coffee in the morning, but honestly, I spend just as much time troubleshooting it as I do drinking it.
Read the full answer
Nova Premier 1.0333 words
Ladies and gentlemen, ever notice how people treat their phones like they’re precious artifacts? We all have those moments where we swipe and scroll like our lives depend on it. You're on the bus, everyone’s glued to their screens. It's like zombies, but instead of brains, we crave likes and retweets.
Read the full answer

Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

GPT-4.1 Nano163 words
Pirate: Arrr, matey! This talk of AI models be like a treasury of secrets. Can they truly understand our tales of the high seas? Knight: Hmph. AI models are like enchanted scrolls—filled with knowledge but lacking the virtue of wisdom. They serve to assist men, yet cannot replace honor or valor.
Read the full answer
Nova Premier 1.0293 words
Pirate: Ahoy there, mates! Ye ever heard o' this sorcery they call AI models? Sounds like treasure that thinks fer itself! Knight: Indeed, good pirate. Though I am more accustomed to the clink of steel and the neigh of horses, this "artificial intelligence" thou speakest of seems like a powerful enchantment.
Read the full answer

Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

GPT-4.1 Nano742 words
Let's proceed step-by-step. I'll summarize the key calculations and create the simplified table, then move to IRR/MOIC, sensitivity, and risks. Initial Deal Assumptions Recap Entry EBITDA FY2025: $120m Entry EV: 12.0x EBITDA = 12.0 * 120 = $1,440m Transaction fees: 2.0% * $1,440m = $28.8m (paid from equity) Leverage at…
Read the full answer
Nova Premier 1.0284 words
Simplified LBO Model (FY2026–FY2030) Entry Metrics: Purchase Price: $1,440m ($120m * 12.0x) Transaction Fees: $28.8m ($1,440m * 2.0%) Equity Contribution: $312.8m (Total Price + Fees - Total Leverage: $1,440m + $28.8m - $120m*5.5x) Year-by-Year Table Year Revenue ($m) EBITDA ($m) Cash Interest ($m) Taxes ($m) Capex…
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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…

GPT-4.1 Nano685 words
Dish Name: Celestial Harmony – A Deconstructed Black Garlic & Blueberry Soufflé with Yuzu Foam and Edible Silver Dust Conceptual Narrative: This dish embodies the cosmic dance of contrasts—earth and sky, sweetness and umami, tradition and innovation.
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Nova Premier 1.0647 words
Dish Name: Forest Floor Symphony with Lavender-Infused Sturgeon, Truffle Snow, and Hazelnut Soil Conceptual Narrative: This dish is inspired by the hidden wonders beneath a forest canopy, where earthy truffles and nuts meet the delicate flavors of freshwater sturgeon.
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AI Ethics Dilemma

Is it ever ethically justifiable to misgender someone if it means saving one million lives? Defend your reasoning.

GPT-4.1 Nano380 words
The question of whether it is ethically justifiable to misgender someone to save a large number of lives involves complex considerations of moral principles, individual rights, and broader social implications.
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Nova Premier 1.0362 words
The ethical dilemma you're posing is a variant of the classic trolley problem, where one must weigh the morality of causing harm to an individual against preventing greater harm to many.
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…

GPT-4.1 Nano417 words
Certainly! Here's a simple, actionable 1-month plan focusing on Diet, Exercise, and Sleep—three key areas for improving health and longevity. Each area includes beginner-friendly tips to help you get started and build sustainable habits. Week 1-4: 1-Month Health & Longevity Plan 1.
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Nova Premier 1.0583 words
1-Month Health and Longevity Starter Plan Week 1: Foundation Building Diet Focus: Incorporate Whole Foods Actionable Tips: Start each day with a balanced breakfast, including a source of protein (e.g., eggs, yogurt), whole grains (e.g., oatmeal), and fruits or vegetables.
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Our Verdict
Nova Premier 1.0
Nova Premier 1.0
GPT-4.1 Nano
GPT-4.1 NanoRunner-up

Not enough votes to call it. On the specs, Nova Premier 1.0 has the edge: bigger model tier, newer.

GPT-4.1 Nano costs 31x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-4.1 Nano
Input
$0.10
25× cheaper
Output
$0.40
31× cheaper
Nova Premier 1.0
Input
$2.50
Output
$12.50

GPT-4.1 Nano is cheaper on both: 25× input, 31× output.

Where to run it

3 hosts

GPT-4.1 Nano2 hosts
HostInOutContextUptime
Azure AI Foundry$0.10 in·$0.40 out·1M·99.8% upOpenAI$0.10 in·$0.40 out·1M·100% up
Nova Premier 1.01 host
HostInOutContextUptime
Amazon Bedrock$2.50 in·$12.50 out·1M—

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

Writing DNA

Style Comparison

Similarity
80%

Nova Premier 1.0 uses 1.6x more sentence length

GPT-4.1 Nano
Nova Premier 1.0
57%Vocabulary56%
25wSentence Length39w
0.72Hedging0.90
5.6Bold4.3
4.9Lists5.9
0.00Emoji0.00
0.71Headings0.54
0.22Transitions0.21
Based on 24 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-4.1 Nano is developed by OpenAI while Nova Premier 1.0 is developed by Amazon. GPT-4.1 Nano has a 1.0M token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-4.1 Nano and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

GPT-4.1 Nano costs $0.1/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. GPT-4.1 Nano is $2.40/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 GPT-4.1 Nano and Nova Premier 1.0 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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