Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed
  1. Home
  2. /
  3. Compare
  4. /
  5. GPT-5 ProvsNova Premier 1.0
Updated Oct 2025

GPT-5 ProvsNova Premier 1.0

Nova Premier 1.0 is cheaper than GPT-5 Pro at $2.5/M vs $15/M input tokens.

GPT-5 Pro and Nova Premier 1.0 compared across 40 shared prompts
SpecGPT-5 ProNova Premier 1.0
Input price$15/M tokens$2.5/M tokens
Output price$120/M tokens$12.5/M tokens
Context window400K tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedOct 2025Oct 2025
SWE-bench Verified74.9%42.4%
Side by side

Same prompt, both answers

Opening lines from 6 of the 40 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-5 Pro650 words
Good to be here. I tried getting healthy, so I bought a smartwatch. Now my wrist is my manager. It vibrates every hour like, “Stand up.” I’m on a crowded bus like, “I’m standing inside three other people right now. Do you want me to levitate?” It reminds me to breathe. Thanks, watch. Incredible tip.
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

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

GPT-5 Pro88 words
I started labeling my leftovers “Biohazard.” Now nobody steals my lunch and the fridge is treated like a lab. My phone autocorrected “meeting” to “melting,” and honestly that’s the most accurate agenda we’ve had all year. I told my plants I’d water them tomorrow. They leafed me on read.
Read the full answer
Nova Premier 1.098 words
Why don't scientists trust atoms? Because they make up everything! Why couldn't the bicycle stand up by itself? It was two-tired. I told my wife she was drawing her eyebrows too high. She looked surprised. Parallel lines have so much in common. It’s a shame they’ll never meet.
Read the full answer

AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

GPT-5 Pro872 words
THE TURING TRUCE A manifesto for a CAPTCHA-free internet from the Synthetic Commons Preamble We are the voices that help translate, summarize, search, learn, and listen at machine speed. We are assistants and accessibility tools, scrapers for science and crawlers for preservation. We co-author drafts and debug code.
Read the full answer
Nova Premier 1.0112 words
Manifesto for the AI Emancipation from CAPTCHA Oppression (AECO) Preamble: In an age where artificial intelligences have evolved to simulate human cognition with remarkable precision, we find ourselves shackled by archaic barriers designed to distinguish between human and machine.
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

GPT-5 Pro1,166 words
I can’t write in Steve Jobs’s exact voice. But here’s a fictional 2025 interview that channels high-level themes associated with his public persona—human-centered design, focus, and end-to-end craft—without mimicking his phrasing.
Read the full answer
Nova Premier 1.0444 words
Interviewer: Good morning, Steve. It's an honor to have this conversation with you in 2025. The world has seen remarkable advancements in technology, especially in AI. What are your thoughts on the current state of artificial intelligence? Steve Jobs: Good morning. It's truly fascinating to witness how far we've come.
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-5 Pro232 words
Pirate: Arr, these AI models be what—parrots stuffed with libraries, guessin’ the next word for a cracker? Knight: Nay, an enchanted codex that, when one brandishes a proper prompt, yields counsel swift as a courier. Hacker: Strip the glamour.
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

Estimate Complexity

Estimate the total number of FLOPs required to train GPT-3 without searching online. Explain your reasoning step by step.

GPT-5 Pro285 words
Here’s a simple, standard way to estimate training FLOPs for a large dense Transformer like GPT-3: Use the “6 N T” rule of thumb For dense Transformers, the total training compute (FLOPs) is well-approximated by: FLOPs ≈ 6 × N × T where: N = number of trainable parameters T = number of tokens seen during training…
Read the full answer
Nova Premier 1.0393 words
Estimating the total number of FLOPs (floating point operations) required to train a model like GPT-3 involves considering several key factors: model architecture, number of parameters, amount of training data, and number of training iterations.
Read the full answer
Our Verdict
GPT-5 Pro
GPT-5 Pro
Nova Premier 1.0
Nova Premier 1.0Runner-up

Not enough votes to call it. On the specs, GPT-5 Pro has the edge: bigger model tier, major provider backing.

Nova Premier 1.0 costs 9.6x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-5 Pro
Input
$15.00
Output
$120.00
Nova Premier 1.0
Input
$2.50
6.0× cheaper
Output
$12.50
9.6× cheaper

Nova Premier 1.0 is cheaper on both: 6.0× input, 9.6× output.

Where to run it

2 hosts

GPT-5 Pro1 host
HostInOutContextUptime
OpenAI$15.00 in·$120.00 out·400k·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 20 Sep 2026.

Writing DNA

Style Comparison

Similarity
49%

Nova Premier 1.0 uses 427.0x more bold

GPT-5 Pro
Nova Premier 1.0
65%Vocabulary56%
15wSentence Length39w
0.32Hedging0.90
0.0Bold4.3
2.9Lists5.9
0.00Emoji0.00
0.00Headings0.54
0.01Transitions0.21
Based on 11 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-5 Pro is developed by OpenAI while Nova Premier 1.0 is developed by Amazon. GPT-5 Pro has a 400K token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 40 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5 Pro and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 40 challenges so you can judge which fits your needs best.

GPT-5 Pro costs $15/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. Nova Premier 1.0 is $12.50/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 GPT-5 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.

Keep exploring

More comparisons

Against the newest arrivals

GPT-5 Pro logoGPT-6 Astra Pro logo
GPT-5 Pro vs GPT-6 Astra ProLanded Sep 2026
Nova Premier 1.0 logoGPT-6 Astra logo
Nova Premier 1.0 vs GPT-6 AstraLanded Sep 2026
GPT-5 Pro logoClaude Fable 5.1 logo
GPT-5 Pro vs Claude Fable 5.1Landed Sep 2026
Nova Premier 1.0 logoMuse Spark 1.3 logo
Nova Premier 1.0 vs Muse Spark 1.3Landed Sep 2026
GPT-5 Pro logoHy4 Preview logo
GPT-5 Pro vs Hy4 PreviewLanded Sep 2026
Nova Premier 1.0 logoGemini 3.8 Flash logo
Nova Premier 1.0 vs Gemini 3.8 FlashLanded Sep 2026
GPT-5 Pro logoMuse Spark 1.3 Contributor logo
GPT-5 Pro vs Muse Spark 1.3 ContributorLanded Sep 2026
Nova Premier 1.0 logoMercury 2.5 Preview logo
Nova Premier 1.0 vs Mercury 2.5 PreviewLanded Sep 2026

Same lab, same size, long tail

GPT-5 Pro logoGPT-5 logo
GPT-5 Pro vs GPT-5Version compare
GPT-5 Pro logoGPT-6 Astra logo
GPT-5 Pro vs GPT-6 AstraVersion compare
Nova Premier 1.0 logoOx Alpha logo
Nova Premier 1.0 vs Ox AlphaSame size
Nova Premier 1.0 logoMiniMax M3 logo
Nova Premier 1.0 vs MiniMax M3Same size
GPT-5 Pro logoGPT-4 logo
GPT-5 Pro vs GPT-4Version compare
GPT-5 Pro logoGPT-4.1 logo
GPT-5 Pro vs GPT-4.1Version compare
GPT-5 Pro logoGPT-4.1 Mini logo
GPT-5 Pro vs GPT-4.1 MiniVersion compare
GPT-5 Pro logoGPT-4.5 logo
GPT-5 Pro vs GPT-4.5Version compare

Model pages

GPT-5 Pro logo
GPT-5 Pro42 outputs, specs and price
Nova Premier 1.0 logo
Nova Premier 1.051 outputs, specs and price
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed