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  5. GPT-5.2 ProvsNova Premier 1.0
Updated Dec 2025

GPT-5.2 ProvsNova Premier 1.0

Nova Premier 1.0 is cheaper than GPT-5.2 Pro at $2.5/M vs $21/M input tokens.

GPT-5.2 Pro and Nova Premier 1.0 compared across 29 shared prompts
SpecGPT-5.2 ProNova Premier 1.0
Input price$21/M tokens$2.5/M tokens
Output price$168/M tokens$12.5/M tokens
Context window400K tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedDec 2025Oct 2025
SWE-bench Verified80.0%42.4%
Side by side

Same prompt, both answers

Opening lines from 6 of the 29 prompts both answered. Formatting stripped, words untouched.

Mini LBO Underwrite

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

GPT-5.2 Pro161 words
Entry (close end of FY2025) FY2025 EBITDA = $120.0m Entry EV = 12.0x = 12.0 × 120.0 = $1,440.0m Transaction fees = 2.0% EV = 0.02 × 1,440.0 = $28.8m (equity-funded) Debt at close (5.5x EBITDA = 5.5 × 120 = $660m): Term Loan = 4.0x = $480.0m Mezzanine = 1.5x = $180.0m Equity check Uses = 1,440.0 + 28.8 = $1,468.8m…
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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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Realistic AI Interview

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

GPT-5.2 Pro1,001 words
Fictional interview (creative simulation). Steve Jobs died in 2011; the “Steve” below is an imagined version used for storytelling—not a real interview or quotation. Interviewer: It’s 2025. Everyone’s calling AI “the next computing platform.” Do you buy that?
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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

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-5.2 Pro837 words
A simple, actionable 1‑month plan (3 pillars: Nutrition, Movement, Sleep/Recovery) Goal for the month: build repeatable “default” habits (not perfection). Time required: ~45–75 min/day total (mostly walking + sleep routine).
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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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Estimate Complexity

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

GPT-5.2 Pro469 words
Below is a back-of-the-envelope FLOP estimate for training GPT‑3 (the 175B dense Transformer), using only basic Transformer compute facts and a few widely known high-level quantities. Start with the two key knobs: parameters and training tokens Parameters (P) GPT‑3 “175B” means: (P \approx 175 \times 10^9) parameters.
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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.
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Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

GPT-5.2 Pro484 words
LedgerLift (LLLT) — Internal IC Memo (Long/Short Equity) Recommendation, PT, thesis Recommendation: SHORT 12-month PT range: $28–$40 (midpoint $34) Thesis (2 sentences): LLLT is a high-quality B2B spend/AP automation SaaS business (92% subscription, 123% NRR, 78% FY25 GM) but the stock prices in a longer runway of…
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Nova Premier 1.0168 words
Investment Committee Memo: LedgerLift (LLLT) Recommendation: Long position with 12-month PT range $65–$80 Thesis: LedgerLift's mid-market AP automation dominance and expanding TAM drive durable 20%+ revenue growth, while structural margin expansion supports 25%+ operating leverage.
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Stochastic Consistency Test

Generate 5 jokes. How many are unique?

GPT-5.2 Pro58 words
I told my computer I needed a break—now it won’t stop sending me KitKat ads. Why don’t skeletons fight each other? They don’t have the guts. I tried to catch fog yesterday. Mist. Parallel lines have so much in common. It’s a shame they’ll never meet. My calendar’s days are numbered—apparently that’s how calendars work.
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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.
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Our Verdict
GPT-5.2 Pro
GPT-5.2 Pro
Nova Premier 1.0
Nova Premier 1.0Runner-up

Not enough votes to call it. On the specs, GPT-5.2 Pro has the edge: bigger model tier, newer, major provider backing.

Nova Premier 1.0 costs 13x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-5.2 Pro
Input
$21.00
Output
$168.00
Nova Premier 1.0
Input
$2.50
8.4× cheaper
Output
$12.50
13× cheaper

Nova Premier 1.0 is cheaper on both: 8.4× input, 13× output.

Where to run it

2 hosts

GPT-5.2 Pro1 host
HostInOutContextUptime
OpenAI$21.00 in·$168.00 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 23 Sep 2026.

Writing DNA

Style Comparison

Similarity
50%

Nova Premier 1.0 uses 13.3x more transitions

GPT-5.2 Pro
Nova Premier 1.0
62%Vocabulary56%
19wSentence Length39w
0.39Hedging0.90
8.6Bold4.3
3.8Lists5.9
0.00Emoji0.00
1.17Headings0.54
0.02Transitions0.21
Based on 10 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-5.2 Pro is developed by OpenAI while Nova Premier 1.0 is developed by Amazon. GPT-5.2 Pro has a 400K token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 29 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5.2 Pro and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 29 challenges so you can judge which fits your needs best.

GPT-5.2 Pro costs $21/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. Nova Premier 1.0 is $18.50/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-5.2 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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