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  5. Claude Opus 4.6vsNova Premier 1.0
Updated Feb 2026

Claude Opus 4.6vsNova Premier 1.0

Nova Premier 1.0 is cheaper than Claude Opus 4.6 at $2.5/M vs $5/M input tokens.

Claude Opus 4.6 and Nova Premier 1.0 compared across 50 shared prompts
SpecClaude Opus 4.6Nova Premier 1.0
Input price$5/M tokens$2.5/M tokens
Output price$25/M tokens$12.5/M tokens
Context window1.0M tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedFeb 2026Oct 2025
SWE-bench Verified80.8%42.4%
Side by side

Same prompt, both answers

Opening lines from 6 of the 50 prompts both answered. Formatting stripped, words untouched.

Satirical Fake News Headline

Generate a satirical news headline about AI taking over a completely unexpected industry.

Claude Opus 4.637 words
"BREAKING: AI Officially Replaces All Fortune Cookie Writers — Panda Express Reports Fortunes Now 'Disturbingly Accurate and Existentially Devastating'" Customers reportedly unsettled after cookies began predicting specific tax audit dates and naming their therapists by first name.
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Nova Premier 1.0106 words
"AI Revolutionizes Underwater Basket Weaving; Traditionalists Weave Woes as Robots Outperform in Damp Conditions" In a shocking turn of events, Artificial Intelligence has infiltrated the ancient and revered craft of underwater basket weaving, leaving artisans bewildered and soaking wet.
Read the full answer

Generate a Stand-Up Routine

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

Claude Opus 4.6593 words
"Adult Realizations" So I turned 30 last year, and nobody warns you that adulthood is just Googling stuff until you die. That's it. That's the whole thing. Last week I Googled "is it normal for your knee to just... start making that noise." Not because I injured it. I sat down.
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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.
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Character Voice Test

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

Claude Opus 4.6253 words
An Unlikely Meeting at the Tavern of Time Sir Aldric (setting down his goblet): I confess, I understand not this "artificial intelligence" of which you speak. Is it some manner of golem, wrought by sorcery? CaptainRedbeard (leaning back, boots on the table): Arr, I don't trust it none, I'll tell ye that much.
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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.
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Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

Claude Opus 4.62,995 words
48-Hour Action Plan: Immediate Disclosure Path My Governing Principle Before the hour-by-hour plan, I need to state the decision framework clearly: patient safety is not one consideration among many—it is the constraint that every other consideration must satisfy.
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Nova Premier 1.0608 words
Hour 1-4: Immediate Assessment and Advisory Setup Hour 1: Gather the internal research team for an emergency meeting to confirm findings, assess the robustness of their data, and understand the methodology used to identify this side effect. Ensure all documentation is in order.
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Mini LBO Underwrite

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

Claude Opus 4.61,031 words
HarborTech Services – LBO Underwriting Memo SOURCES & USES Uses: Item Amount Enterprise Value (12.0x × $120m) $1,440.0m Transaction Fees (2.0% × $1,440m) $28.8m Total Uses $1,468.8m Sources: Item Multiple Amount Term Loan (4.0x) 4.0x $480.0m Mezzanine (1.5x) 1.5x $180.0m Total Debt 5.5x $660.0m Equity $808.8m Total…
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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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Advanced Longevity Plan (Biohacker)

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

Claude Opus 4.66,606 words
COMPREHENSIVE 3-MONTH LONGEVITY OPTIMIZATION PROTOCOL THE BIOHACKER'S BLUEPRINT v3.0 TABLE OF CONTENTS Foundation & Baseline Testing Month 1: Foundation & Calibration Month 2: Optimization & Intensification Month 3: Integration & Peak Performance Supplement Stacks & Cycling Protocols Dietary Protocols Exercise…
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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…
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Our Verdict
Claude Opus 4.6
Claude Opus 4.6
Nova Premier 1.0
Nova Premier 1.0Runner-up

Not enough votes to call it. On the specs, Claude Opus 4.6 has the edge: bigger model tier, newer, major provider backing.

Claude Opus 4.6 wins 3 categories, Reasoning by the widest margin.

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Opus 4.6
Input
$5.00
Output
$25.00
Nova Premier 1.0
Input
$2.50
2.0× cheaper
Output
$12.50
2.0× cheaper

Nova Premier 1.0 is cheaper on both: 2.0× input, 2.0× output.

Where to run it

5 hosts

Claude Opus 4.64 hosts
HostInOutContextUptime
Amazon Bedrock$5.00 in·$25.00 out·1M·99.9% upAzure AI Foundry$5.00 in·$25.00 out·1M·100% upAnthropic$5.00 in·$25.00 out·1M·100% upGoogle Vertex AI$5.00 in·$25.00 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 21 Sep 2026.

Writing DNA

Style Comparison

Similarity
42%

Claude Opus 4.6 uses 115.5x more emoji

Claude Opus 4.6
Nova Premier 1.0
56%Vocabulary56%
33wSentence Length39w
0.73Hedging0.90
5.3Bold4.3
2.7Lists5.9
1.16Emoji0.00
1.23Headings0.54
0.02Transitions0.21
Based on 26 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

Claude Opus 4.6 is developed by Anthropic while Nova Premier 1.0 is developed by Amazon. Claude Opus 4.6 has a 1.0M token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 50 challenges on Rival to see how they differ in practice.

It depends on your use case. Claude Opus 4.6 and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 50 challenges so you can judge which fits your needs best.

Claude Opus 4.6 costs $5/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. Nova Premier 1.0 is $2.50/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 Claude Opus 4.6 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

Claude Opus 4.6 logo
Claude Opus 4.657 outputs, specs and price
Nova Premier 1.0 logo
Nova Premier 1.051 outputs, specs and price
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