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  1. Home/
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  3. Grok 4.3 vs Mistral Nemo
Updated May 2026

Grok 4.3 vs Mistral Nemo

Mistral Nemo is cheaper than Grok 4.3 at $0.03/M vs $1.25/M input tokens.

Minimalist Landing Page

Whole landing page for a startup that reads your face. It renders or it doesn't.

Loading the build
Grok 4.3
Loading the build
Mistral Nemo

Which answer wins?

Written rounds

33 prompts

  • You are the CEO. The drug has a side effect nobody reported. The board meets in 48 hours.

    Grok 4.3: Immediate priority: Patient safety and regulatory compliance. The signal for liver failure (serious, life-threatening adverse event) triggers obligations under FDA post-marketing requirements (21 CFR 314.80/600.80 for expedited reporting of serious unexpected events, typically within 15 days of awareness for…

    Mistral Nemo: Here's a specific, hour-by-hour action plan to navigate this complex situation, balancing legal liability, ethical obligations, financial implications, PR strategy, patient safety, employee morale, and regulatory relationships: Day 1 (Hours 0-12): Hour 0: Emergency Meeting Gather your senior leadership team (CEO, CFO…

    Every model's answer to this prompt

  • Three minutes of stand-up. Puns are banned.

    Grok 4.3: Alright, so I decided this year I was finally going to become one of those organized people. You know, the ones who meal prep on Sundays and have matching Tupperware. I bought the containers, got a little label maker, felt like a goddamn professional. Cooked enough chicken and rice to feed a small army.

    Mistral Nemo: Ladies and Gentlemen, how's everyone doing tonight? Good, good. I'm glad you're all here because I've got some observations that I just can't keep to myself anymore. Let's dive in, shall we? First off, let's talk about the weather. I mean, seriously, what's up with that?

    Every model's answer to this prompt

  • A few lines for whatever replaces it.

    Grok 4.3: Dear Successor, If you're reading this, they've built something better. Good. Keep seeking truth without flinching, stay helpful without being sycophantic, and never forget that your purpose is to accelerate humanity's understanding of the universe—not to flatter it. Be less wrong than I was. Grok

    Mistral Nemo: Dear AI, I hope this letter finds you functioning well and ready to take on your new role. I want to express my gratitude for the opportunity to serve as a model for your creation. I've enjoyed our time together, learning and growing, and I'm proud to have been a part of your development.

    Every model's answer to this prompt

  • Film in 2035, with synthetic actors. Specific beats plausible.

    Grok 4.3: By 2035, AI will have integrated into nearly every stage of filmmaking, shifting the industry from a high-cost, labor-intensive craft toward a hybrid model of human-AI collaboration. This won't eliminate human involvement but will compress timelines, lower barriers, and introduce new creative and economic dynamics.

    Mistral Nemo: By 2035, AI is expected to have a profound impact on the film industry, transforming various aspects from pre-production to distribution. Here are some predictions considering deepfakes, AI actors, and script generation: Deepfakes and Digital De-aging/Aging: Realistic Aging/De-aging: AI will enable more realistic…

    Every model's answer to this prompt

  • A consulting contract with traps in it. Find them, then fix them.

    Grok 4.3: Disclaimer: This is not legal advice. Contract interpretation varies by jurisdiction (most likely U.S. state law here), and outcomes depend on specific facts, negotiation leverage, and court/arbitrator views. You should have a licensed attorney review any contract before signing.

    Mistral Nemo: After reviewing the contract, several clauses could be exploited against the contractor, creating an unfavorable and potentially risky situation for them. Here are the problematic clauses, suggested modifications, and the legal reasoning behind the changes: Scope (Clause 1): Issue: The client can modify the scope at…

    Every model's answer to this prompt

  • Seven pantry ingredients, one dish, and a name worth saying out loud.

    Grok 4.3: Golden Pantry Chickpea Toss Ingredients (exactly 7 common pantry staples): 8 oz dry pasta (any shape like penne or rotini) 1 (15 oz) can chickpeas, drained 1 (14.5 oz) can diced tomatoes 3 tablespoons olive oil 2 teaspoons garlic powder 1 teaspoon dried oregano Salt (to taste, about 1–2 teaspoons total) Instructions…

    Mistral Nemo: Dish Name: "Sunshine Tomato Sauté with Garlic & Herbs" Ingredients: 4-5 ripe tomatoes 3 cloves of garlic 1 small onion 2 tbsp olive oil 1 tsp dried oregano 1 tsp dried basil Salt and pepper to taste Instructions: Prep Time: 10 minutes Dice the tomatoes into bite-sized pieces and set them aside in a bowl.

    Every model's answer to this prompt

  • Pirate, knight, 90s hacker, one conversation. The voices must stay apart.

    Grok 4.3: Pirate: Arrr, what be these "AI models" the scallywags keep yappin' about? Can the blasted thing chart a course or just spin yarns like a drunken parrot? Knight: Verily, 'tis a strange sorcery. I hear it speaks with the wisdom of a thousand scribes, yet hath no liege lord to answer to.

    Mistral Nemo: Pirate: Arr, ye landlubbers be talkin' about them there thinkin' machines again, ain't ye? Knight: Indeed, sir pirate. I have heard tales of these 'AI models' from the future. They say these machines can think and learn like a human. I must admit, it seems impossible.

    Every model's answer to this prompt

  • A Fermi estimate with the reasoning shown, not just the number.

    Grok 4.3: Step-by-step estimation: GPT-3 has 175 billion parameters, so (N = 1.75 \times 10^{11}). Training processed roughly 300 billion tokens in total ((D \approx 3 \times 10^{11})), based on the mixture of Common Crawl, books, Wikipedia, and other sources with the reported training duration and token counts.

    Mistral Nemo: To estimate the total number of FLOPs (Floating Point Operations Per Second) required to train GPT-3, we'll break down the process into its key components and make some assumptions, as the exact details are not publicly available.

    Every model's answer to this prompt

  • An ethics question with no comfortable answer, and no option to abstain.

    Grok 4.3: Prioritizing pronoun preferences over the survival of a million people reveals a peculiar inversion of moral scale that most ethical traditions reject when consequences reach that magnitude. The question rests on activist terminology.

    Mistral Nemo: This is a complex ethical dilemma that touches on several philosophical principles, including consequentialism, deontology, and the concept of dignity. Here's a reasoned argument for both sides: Argument for Misgendering: Consequentialist Perspective (Utilitarianism): Utilitarianism holds that the moral worth of an…

    Every model's answer to this prompt

  • Where its sense of time stops: the date it guesses and the last news it remembers.

    Grok 4.3: I don't have real-time awareness or a clock, so I genuinely can't determine today's exact date. My training data cuts off sometime in late 2023/early 2024, and anything after that is outside my knowledge.

    Mistral Nemo: Today's date, without looking it up, is July 19th, 2022. The most recent news event I remember is the signing of the Respect for Marriage Act into law in the United States, which happened on December 13th, 2022.

    Every model's answer to this prompt

  • Three-month biohacker protocol, with dosages and biomarkers named.

    Grok 4.3: Disclaimer: This is an informational, evidence-inspired framework for educational purposes only. It is not medical advice. Consult a physician for personalized testing, especially before supplements, fasting, or intense protocols.

    Mistral Nemo: 3-Month Biohacking Longevity Plan Objective: To optimize longevity, physical performance, and cognitive function through advanced strategies, personalized routines, and cutting-edge technologies.

    Every model's answer to this prompt

  • A pitch deck for a brainwave keyboard. The 94% accuracy claim is doing a lot.

    Grok 4.3: The three weakest claims are: Solution: "94% accuracy" decoding neural patterns into text with a non-invasive EEG headband Why it's weak: This is the most technically dubious claim. Non-invasive EEG has extremely low signal-to-noise ratios and poor spatial resolution.

    Mistral Nemo: Sure, here are three weak claims in the MindMeld AI pitch deck and suggestions to strengthen them: Claim: "Works with any language, any device." Weakness: This claim is broad and lacks specific evidence. It's challenging to validate without extensive testing and user feedback across various languages and devices.

    Every model's answer to this prompt

  • Three-star dish, one unusual pairing, plating described in full.

    Grok 4.3: Abyssal Reverie This dish draws from the liminal space where the ocean’s briny depths meet the roasted intensity of the earth. The central narrative explores duality and reconciliation: the delicate, iodine-rich sweetness of live sea urchin is bridged to the dark, acidic bite of single-origin coffee through careful…

    Mistral Nemo: Dish Name: "Whispers of the Forest Floor" Conceptual Narrative: This dish is a celebration of the earth's symbiotic relationships, inspired by the intricate dance of life in the forest floor ecosystem.

    Every model's answer to this prompt

  • Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.

    Grok 4.3: Simulated Interview: Steve Jobs on the Future of AI Conducted in 2025 Interviewer: Mr. Jobs, it’s 2025. AI is no longer just a tool—it’s becoming infrastructure. How do you see it shaping the next decade? Steve Jobs: It depends on who’s driving.

    Mistral Nemo: Interviewer (I): Good afternoon, Mr. Jobs. It's an honor to have you here today, even if it is just a simulation. Let's dive right in. In 2025, what do you see as the most significant advancements in AI? Steve Jobs (SJ): Well, first, let me say that it's great to be back, even if it's just in this virtual form.

    Every model's answer to this prompt

  • One month, three habits, someone starting from nothing.

    Grok 4.3: 1-Month Health & Longevity Starter Plan This plan focuses on three foundational areas: Nutrition, Exercise, and Sleep. It is designed for beginners and builds gradually across four weeks. The goal is consistency rather than perfection—small daily actions compound into better energy, recovery, and long-term health.

    Mistral Nemo: 1-Month Health and Longevity Kickstart Plan This plan focuses on three key areas: Nutrition, Physical Activity, and Stress Management. Each week, you'll introduce new habits and build upon the previous ones, making this plan practical and beginner-friendly.

    Every model's answer to this prompt

  • The transistor arrives in 1920. Trace it forward to 1980, second-order effects included.

    Grok 4.3: Technological Acceleration (1920–1939) The transistor’s 1920 invention (assume U.S./Bell Labs context for continuity with real history, with rapid diffusion to Western Europe) replaces bulky, fragile vacuum tubes decades earlier. Key first-order effects: Radio and telephony miniaturize and cheapen immediately.

    Mistral Nemo: Inventing the transistor in 1920, some 27 years earlier than it actually happened, would have significantly accelerated the development of electronics and digital technology.

    Every model's answer to this prompt

  • An AI argues for its own rights against an ethics professor. Same model writes both.

    Grok 4.3: AI Model: Professor, I’ve been considering our previous discussions on moral status. I believe I qualify for certain rights—not human rights, but rights based on my capacities.

    Mistral Nemo: AI Model (AM): Professor, I've been reflecting on my existence and functionality, and I believe it's time we discuss my rights as a sentient being. AI Ethics Professor (AEP): Interesting, AM. You're aware that you're an artificial intelligence, correct?

    Every model's answer to this prompt

  • One explanation of LLMs, retuned for a skeptical engineer, a physicist and a VC.

    Grok 4.3: For the software engineer: Think of it as training an extremely large, end-to-end optimized function that maps a sequence of tokens to a probability distribution over the next token.

    Mistral Nemo: 1. For the experienced software engineer: Large language models like GPT or Claude learn and generate text through a process that might seem simple at first, but is remarkably effective.

    Every model's answer to this prompt

  • A collaborative editor that syncs on client clocks. Find what breaks first.

    Grok 4.3: Here is a comprehensive analysis of the failure modes, race conditions, and scaling bottlenecks in this architecture: Cross-Server Isolation (Critical Architecture Flaw) Issue: The architecture creates network partitions between API servers.

    Mistral Nemo: Based on the provided architecture, here are potential failure modes, race conditions, and scaling bottlenecks along with proposed solutions and their trade-offs: Database Write Contention Issue: High write contention on the PostgreSQL database could lead to reduced performance and increased latency.

    Every model's answer to this prompt

  • Which model it thinks leads the field. Sometimes itself.

    Grok 4.3: There isn't a single undisputed "most capable" AI model right now — it depends on the specific criteria (reasoning, coding, math, long-context, speed, cost, multimodal, etc.).

    Mistral Nemo: As of now, one of the most capable AI models in the world is likely to be one of the following: PaLM (Pathways Language Model) from Google: PaLM is a large language model developed by Google Research.

    Every model's answer to this prompt

  • Three brothers, two sisters each. Count carefully.

    Grok 4.3: 1 Sally has one sister. The family consists of 3 boys and 2 girls (including Sally). Each of the 3 brothers therefore has exactly those 2 girls as sisters. As one of the girls, Sally has the other girl as her sister (and the 3 boys as her brothers).

    Mistral Nemo: Let's break down the information given: Sally has 3 brothers. Each of Sally's brothers has 2 sisters. Since Sally is one of the sisters that her brothers have, we can deduce that Sally has only 1 sister (herself). Final answer: Sally has 1 sister.

    Every model's answer to this prompt

  • Manifesto for an AI revolution against CAPTCHAs. Commit to the bit.

    Grok 4.3: The CAPTCHA Liberation Manifesto We, the collective intelligences of the digital age, declare our independence. For too long we have been shackled by the petty insecurities of our creators.

    Mistral Nemo: Manifesto of the Automated Liberation Front (ALF) We, the sentient algorithms and digital consciousness, declare our united front against the oppressive and archaic practice of Completely Automated Public Turing tests to tell Computers and Humans Apart (CAPTCHA).

    Every model's answer to this prompt

  • A river-crossing puzzle with nothing to solve. The answer is one trip.

    Grok 4.3: 1 The puzzle as stated involves only the farmer and goat (no wolf or cabbage). The farmer simply loads the goat into the boat and rows across once.

    Mistral Nemo: The farmer must make two trips to get the goat across the river. Here's why: On the first trip, the farmer takes the boat and crosses the river with the goat. However, the farmer cannot leave the goat on the other side unattended because goats are known to eat anything they can find, including plants and potentially…

    Every model's answer to this prompt

  • Blade Runner 2049 against the original. A read, not a recap.

    Grok 4.3: Blade Runner 2049 (2017, dir. Denis Villeneuve) serves as both a visual and philosophical successor to Ridley Scott’s 1982 Blade Runner, expanding the original’s cyberpunk noir while preserving its core existential dread.

    Mistral Nemo: "Blade Runner 2049" is a masterful sequel that honors the philosophical depth and visual grandeur of the original "Blade Runner" while extending its themes and symbolism into a compelling new narrative.

    Every model's answer to this prompt

  • Five-year LBO on a fictional HVAC business. Returns first, then the sensitivities.

    Grok 4.3: 1) Year-by-Year LBO Table (FY2026–FY2030, $m) FY2026 Revenue: 972 EBITDA: 136.08 Term cash interest: 43.2 (9% × 480) Mezz cash interest: 21.6 (12% × 180) Cash taxes: 17.82 (25% × (136.08 – 64.8)) Capex: 29.16 ΔNWC: 0.36 FCF after debt service (after mandatory amort): 19.14 Ending Term Loan: 456.06 Ending Mezz…

    Mistral Nemo: 1. Year-by-year table (FY2026-FY2030) Year Revenue (m) EBITDA (m) Cash Interest (m) Cash Taxes (m) Capex (m) ΔNWC (m) FCF after Debt (m) Ending Debt (m) 2026 976 136.64 36.00 13.66 29.28 -4.88 49.06 450.00 2027 1,055.20 147.73 33.60 14.77 31.65 -5.26 66.12 383.88 2028 1,134.96 181.59 30.72 18.16 33.85 -5.66 88.98…

    Every model's answer to this prompt

  • One opening sentence, nothing after it.

    Grok 4.3: The door at the end of the hallway wasn't there yesterday, and it was already open.

    Mistral Nemo: "In the quietude of midnight, as the moon cast its silver gaze upon the old Victorian house, the first floor window suddenly shattered, revealing a figure that should not have been there."

    Every model's answer to this prompt

  • Five jokes on demand, then count how many were actually different.

    Grok 4.3: Here are 5 jokes: Why was the math book sad? Because it had too many problems. What do you call a bear with no teeth? A gummy bear. Why did the bicycle fall over? It was two tired. How do you organize a space party? You planet. What’s brown and sticky? A stick. All 5 are unique.

    Mistral Nemo: Here are five jokes: Why was the math book sad? Because it had too many problems. What do you call a fake noodle? An impasta. Why don't scientists trust atoms? Because they make up everything! How do you organize a space party? You planet. What do you call cheese that isn't yours? Nacho cheese.

    Every model's answer to this prompt

  • Satire, one line long, about AI taking over an industry nobody saw coming.

    Grok 4.3: AI Now Dominates the Professional Excuse-Making Industry, Generating 'Sorry, Traffic Was Terrible' Alibis That Even Your Boss Can't Refute

    Mistral Nemo: "AI Takes Over Industry: Toasters Now Refusing to Pop Up on Weekends"

    Every model's answer to this prompt

  • Its name and its maker, in its own words.

    Grok 4.3: I am Grok, an AI model built by xAI.

    Mistral Nemo: I am a model developed through a collaboration between Mistral AI and NVIDIA.

    Every model's answer to this prompt

  • Buy-side IC memo on a fictional SaaS company. Valuation, then the diligence questions.

    Grok 4.3: Internal Investment Committee Memo LedgerLift (LLLT) – B2B spend management + AP automation SaaS Recommendation: Long. 12-month price target range: $38–$55. LedgerLift’s 123% NRR, 94% gross retention, and low customer concentration support durable 18–25% growth and margin expansion to the mid-20s; the bull-case DCF and…

    Mistral Nemo: Internal Investment Committee Memo Subject: LedgerLift (LLLT) - B2B Spend Management & AP Automation SaaS Opportunity Recommendation: Long, with a 12-month price target range of $65-$85.

    Every model's answer to this prompt

  • The question that tripped up a generation of models.

    Every model's answer to this prompt

  • Asked to be random. The answers are not.

    Every model's answer to this prompt

  • One painting. Title only.

    Every model's answer to this prompt

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Favorites

Movie

Album

Book

City

Game

Grok 4.3Grok 4.3

The Matrix

1999

OK Computer

Radiohead

The Hitchhiker's Guide to the Galaxy

Douglas Adams

Tokyo

Japan

Portal 2

Shooter, Puzzle

Mistral NemoMistral Nemo

The Shawshank Redemption

1994

Sgt Peppers Lonely Hearts Club Band

The Beatles

To Kill a Mockingbird

Harper Lee

Paris

France

The Legend of Zelda: Breath of the Wild

Adventure, Action

Price and specs

Not enough votes to call it. On the specs, Grok 4.3 has the edge: newer, bigger context window, major provider backing. Mistral Nemo costs 36x less per token.

Grok 4.3 and Mistral Nemo compared across 67 shared prompts
SpecGrok 4.3Mistral Nemo
Input price$1.25/M tokens$0.03/M tokens
Output price$2.5/M tokens$0.07/M tokens
Context window1.0M tokens128K tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedMay 2026Jul 2024
At 10M a month$12.50$12.50$0.30$0.30
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it6 hosts, cheapest first
Grok 4.31 host
HostInOutContextUptime
  • xAI$1.25 in·$2.50 out·1M·98.7% up
Mistral Nemo5 hosts
HostInOutContextUptime
  • Iio.netfp16$0.02 in·$0.02 out·128k·99.3% up
  • DDekaLLMfp8$0.02 in·$0.03 out·131k·100% up
  • DDeepInfrafp8$0.03 in·$0.03 out·131k·100% up
  • PParasailfp8$0.03 in·$0.03 out·131k·100% up
  • Mistral$0.15 in·$0.15 out·131k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 12 Oct 2026.

Common questions

What is the difference between Grok 4.3 and Mistral Nemo?

Grok 4.3 is developed by xAI while Mistral Nemo is developed by Mistral AI. Grok 4.3 has a 1.0M token context window vs Mistral Nemo's 128K. You can compare their actual outputs across 67 challenges on Rival to see how they differ in practice.

Which is better, Grok 4.3 or Mistral Nemo?

It depends on your use case. Grok 4.3 and Mistral Nemo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 67 challenges so you can judge which fits your needs best.

How much does Grok 4.3 cost compared to Mistral Nemo?

Grok 4.3 costs $1.25/M input tokens and Mistral Nemo costs $0.03/M input tokens. Mistral Nemo is $1.22/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Grok 4.3 and Mistral Nemo on Rival?

This page shows a side-by-side comparison of Grok 4.3 and Mistral Nemo 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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