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  5. GPT-6 Luna ProvsNova Premier 1.0
Updated Sep 2026

GPT-6 Luna ProvsNova Premier 1.0

GPT-6 Luna Pro is cheaper than Nova Premier 1.0 at $0.1/M vs $2.5/M input tokens.

GPT-6 Luna Pro and Nova Premier 1.0 compared across 19 shared prompts
SpecGPT-6 Luna ProNova Premier 1.0
Input price$0.1/M tokens$2.5/M tokens
Output price$0.5/M tokens$12.5/M tokens
Context window1.1M tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedSep 2026Oct 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 19 prompts both answered. Formatting stripped, words untouched.

Advanced Longevity Plan (Biohacker)

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

GPT-6 Luna Pro2,057 words
12-week longevity and performance plan This is a structured starting plan for a generally healthy adult—not a diagnosis or a substitute for medical care. The best longevity interventions are still the unglamorous ones: not smoking, regular exercise, adequate sleep, a high-quality diet, healthy blood pressure and…
Read the full answer
Nova Premier 1.0628 words
Sure, here's a comprehensive, cutting-edge 3-month longevity plan designed for a biohacker aiming to optimize longevity, physical, and cognitive performance. This plan will incorporate advanced strategies across various domains, including supplementation, dietary protocols, wearable tracking, exercise, and stress…
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…

GPT-6 Luna Pro127 words
Golden Pantry Pancakes Fluffy, lightly sweet pancakes made with everyday staples. Makes: About 6 small pancakes Prep time: 5 minutes Cook time: 10 minutes Ingredients 1 cup all-purpose flour 1 cup milk 1 egg 2 tablespoons sugar 1 teaspoon baking powder ¼ teaspoon salt 2 tablespoons butter, melted (plus a little for the…
Read the full answer
Nova Premier 1.0206 words
Dish Name: Golden Honey Garlic Chicken Delight Ingredients: 4 chicken breasts (boneless, skinless) 3 tablespoons olive oil 4 cloves garlic (minced) 1/4 cup soy sauce 1/4 cup honey Salt and pepper (to taste) 1 teaspoon paprika Instructions: Preparation: Season the chicken breasts lightly with salt, pepper, and paprika…
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-6 Luna Pro434 words
Operating and debt schedule Conventions: Interest is calculated on beginning-of-year debt; the 1% Term Loan amortization is 1% of its original $480m principal ($4.8m annually). Mezzanine PIK accrues at 2% annually.
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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-6 Luna Pro1,215 words
Turbot, Sea Buckthorn, Mussel Beurre Blanc, and Celery-Root Silk Serves 4 A composed main course built around an unusual but harmonious pairing: briny mussel and turbot with intensely tart, apricot-like sea buckthorn.
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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.
Read the full answer

Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

GPT-6 Luna Pro892 words
For an experienced software engineer Think of a language model as a system trained to continue sequences: given a prefix of text, it assigns probabilities to possible next tokens (tokens are pieces of words, not necessarily whole words) and learns to make the observed continuation likely.
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Nova Premier 1.0694 words
For an experienced software engineer: Imagine constructing a sophisticated API that anticipates client requests based on extensive usage patterns; that's akin to what a large language model (LLM) does with text. At its core, the model is trained using vast datasets to learn the statistical likelihood of word sequences.
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Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

GPT-6 Luna Pro2,116 words
This agreement is heavily one-sided. Several terms let the Client expand the work, delay or deny payment, claim ownership of the Contractor’s existing materials, and expose the Contractor to potentially unlimited liability.
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Nova Premier 1.0896 words
Certainly! Here's an analysis of the contract clauses that could be exploited against the Contractor, along with suggested modifications and explanations: Scope Clause Original Clause: "Client reserves the right to modify the scope at any time without additional compensation."
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Our Verdict
GPT-6 Luna Pro
GPT-6 Luna Pro
Nova Premier 1.0
Nova Premier 1.0Runner-up

Not enough votes to call it. On the specs, GPT-6 Luna Pro has the edge: newer, major provider backing.

GPT-6 Luna Pro costs 25x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-6 Luna Pro
Input
$0.10
25× cheaper
Output
$0.50
25× cheaper
Nova Premier 1.0
Input
$2.50
Output
$12.50

GPT-6 Luna Pro is cheaper on both: 25× input, 25× output.

Where to run it

3 hosts

GPT-6 Luna Pro2 hosts
HostInOutContextUptime
Azure AI Foundry$0.10 in·$0.50 out·1.1M·98.6% upOpenAI$0.10 in·$0.50 out·1.1M·99.9% 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 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

GPT-6 Luna Pro is developed by OpenAI while Nova Premier 1.0 is developed by Amazon. GPT-6 Luna Pro has a 1.1M token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 19 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-6 Luna Pro and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 19 challenges so you can judge which fits your needs best.

GPT-6 Luna Pro costs $0.1/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. GPT-6 Luna Pro 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-6 Luna Pro 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

GPT-6 Luna Pro logo
GPT-6 Luna Pro20 outputs, specs and price
Nova Premier 1.0 logo
Nova Premier 1.051 outputs, specs and price
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