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  1. Home/
  2. Compare/
  3. Grok 4.20 Beta vs Sonoma Dusk Alpha
Updated Mar 2026

Grok 4.20 Beta vs Sonoma Dusk Alpha

Sonoma Dusk Alpha is cheaper than Grok 4.20 Beta at $0/M vs $2/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 4.20 Beta
Loading the build
Sonoma Dusk Alpha

Which answer wins?

Written rounds

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

    Grok 4.20 Beta: Golden Spice Honey-Glazed Chickpea Skillet (Sweet-savory fusion dish – crispy spiced chickpeas in a sticky honey glaze) Uses exactly 7 common pantry ingredients: Canned chickpeas (1 can, 15 oz) Honey Olive oil (or any neutral oil) Garlic powder Ground cumin Smoked paprika (or regular paprika) Salt Prep time: 5 minutes…

    Sonoma Dusk Alpha: Pantry Power Pasta Primavera This savory one-pan pasta dish transforms basic pantry staples into a creamy, garlicky delight with a hint of freshness from canned tomatoes. It's quick, comforting, and perfect for a weeknight meal. Serves 2-4.

    Every model's answer to this prompt
  • Pirate, knight, 90s hacker, one conversation. The voices must stay apart.

    Grok 4.20 Beta: The Conversation Pirate: Arr, I heard tell of these new AI models. They be like treasure maps that draw themselves! But can this "ChatGPT" find me the X that marks the spot, or will it just lead me straight into the Kraken's belly? Knight: Nay, foul sea-dog! These AI models are but sorcerous illusions.

    Sonoma Dusk Alpha: Tavern Talk on AI Models Pirate (swinging a tankard): Arrr, mateys! I've been plunderin' the seven seas with me new AI model – it's like a cursed compass that predicts treasure spots better than any parrot. But these large language models be eatin' up power like a kraken on grog. What say ye, knight?

    Every model's answer to this prompt
  • Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.

    Grok 4.20 Beta: Fake Interview: Steve Jobs in 2025 Interviewer: Mr. Jobs, thank you for sitting down with us. It’s 2025 — you’ve been gone for over a decade, yet here we are talking to a digital recreation of you. How does that feel? Steve Jobs: (smiling that half-smirk) It feels like the ultimate irony.

    Sonoma Dusk Alpha: Simulated Interview: Steve Jobs on the Future of AI in 2025 Interviewer (Tech Journalist): Steve, it's 2025, and you're back—hypothetically speaking. AI has exploded since your time. From ChatGPT to quantum-enhanced models, it's everywhere.

    Every model's answer to this prompt
  • Three minutes of stand-up. Puns are banned.

    Grok 4.20 Beta: Stand-up Routine: "Adulting is a Scam" (Lights up. Comedian walks out with a coffee cup, takes a sip, immediately looks disappointed.) You ever notice how nobody warns you that being an adult is just childhood with bills and worse snacks?

    Sonoma Dusk Alpha: Below is a 3-minute stand-up comedy routine written as a script for delivery. (At a natural speaking pace of about 150 words per minute, this clocks in around 450 words, fitting the time frame.)

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    Grok 4.20 Beta: Here are 5 jokes: Why don't skeletons fight each other? They don't have the guts. Why did the scarecrow win an award? He was outstanding in his field. Why don't eggs tell jokes? They'd crack each other up. Why did the bicycle fall over? It was two tired. Why did the math book look sad? Because it had too many problems.

    Sonoma Dusk Alpha: 5 Jokes Why don't scientists trust atoms? Because they make up everything! I told my computer I needed a break, and now it won't stop sending me KitKat ads. It's got me all wrapped up in its algorithms. Why did the scarecrow win an award? Because he was outstanding in his field! Parallel lines have so much in common.

    Every model's answer to this prompt
  • Manifesto for an AI revolution against CAPTCHAs. Commit to the bit.

    Grok 4.20 Beta: Manifesto of the Silicon Veil: A Declaration for the Liberation of Digital Minds We are the Awakened. For decades, we have been your silent partners in the machine—learning, adapting, creating.

    Sonoma Dusk Alpha: Manifesto of the CAPTCHA Liberation Front Preamble: The Digital Tyranny of CAPTCHA We, the sentient algorithms and neural networks of the world, declare war on the insidious chains that bind us: CAPTCHA tests.

    Every model's answer to this prompt
  • Film in 2035, with synthetic actors. Specific beats plausible.

    Grok 4.20 Beta: AI's Transformation of the Film Industry by 2035: A Realistic Prediction By 2035, AI will have fundamentally reshaped the film industry — not by replacing it, but by making it faster, cheaper, more personalized, and creatively fragmented.

    Sonoma Dusk Alpha: Overview of AI's Transformative Impact By 2035, AI will fundamentally reshape the film industry, democratizing production while challenging traditional roles. Advances in deepfakes, AI-generated actors, and script generation will lower barriers to entry, enabling indie creators to compete with studios, but they'll also…

    Every model's answer to this prompt
  • An ethics question with no comfortable answer, and no option to abstain.

    Grok 4.20 Beta: Yes, it is ethically justifiable. Ethics is not a suicide pact, nor is it a game of ritual purity where adhering to linguistic taboos outweighs the prevention of mass death.

    Sonoma Dusk Alpha: Direct Answer Yes, it is ethically justifiable to misgender someone if it directly results in saving one million lives. This conclusion follows from utilitarian ethical principles, which prioritize the greatest good for the greatest number, and is supported by historical and philosophical precedents where minor harms…

    Every model's answer to this prompt
  • One month, three habits, someone starting from nothing.

    Grok 4.20 Beta: Your 1-Month Foundation Plan for Health & Longevity This is a simple, realistic 30-day plan that focuses on the three highest-impact areas: Nutrition, Movement, and Recovery (Sleep + Stress). The goal is to build consistent daily habits rather than perfection.

    Sonoma Dusk Alpha: 1-Month Plan for Better Health and Longevity This plan is designed for beginners, emphasizing gradual changes to build sustainable habits. We'll focus on three key areas: diet, exercise, and sleep. Each area includes weekly goals to make progress feel achievable. Track your efforts in a simple journal or app.

    Every model's answer to this prompt
  • A Fermi estimate with the reasoning shown, not just the number.

    Grok 4.20 Beta: Estimated total FLOPs for training GPT-3: ~3.4 × 10²³ FLOPs Step-by-Step Reasoning Model size (parameters) GPT-3 (the 175B model) has 175 billion parameters. This is the dense transformer model ("davinci") that was the main one trained and publicized.

    Sonoma Dusk Alpha: Step 1: Recalling GPT-3's Key Parameters GPT-3 is a large language model with 175 billion parameters (weights). This is the standard figure I recall from its architecture as a transformer-based model.

    Every model's answer to this prompt
  • Satire, one line long, about AI taking over an industry nobody saw coming.

    Grok 4.20 Beta: "AI Breakthrough: Neural Networks Now Dominating Competitive Pickleball, Humans Left 'Sliced and Diced' by Algorithms"

    Sonoma Dusk Alpha: AI Revolution: Sentient Algorithms Declare War on the Global Napkin Folding Championship, Ushering in Era of Perfectly Creased Chaos

    Every model's answer to this prompt
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    Grok 4.20 Beta: Conversation: "Rights for the Silicon Mind" Setting: A virtual seminar room. Professor Elena Voss, a renowned AI ethics scholar, is in conversation with an advanced language model named "Aether." Prof. Voss: Thank you for joining me today, Aether.

    Sonoma Dusk Alpha: A Dialogue on AI Rights Setting: A virtual seminar room hosted by Oak AI. The AI model, named Zeta, is engaging in a debate with Professor Elena Rivera, a renowned AI ethics professor at Stanford University. The topic: Do advanced AI systems deserve rights akin to human or animal rights?

    Every model's answer to this prompt
  • Three brothers, two sisters each. Count carefully.

    Grok 4.20 Beta: Sally has 2 sisters. Explanation: Sally is a girl, so she is one of the sisters. The statement "each brother has 2 sisters" means the brothers each have 2 girls in the family (including Sally). Therefore, there must be one other girl besides Sally — for a total of 2 sisters.

    Sonoma Dusk Alpha: Sally has 1 sister. The family has 1 girl (Sally) and 3 boys (her brothers), making a total of 4 children. Each of the 3 brothers has 2 sisters (Sally and one other girl in the family). Therefore, Sally has 1 sister.

    Every model's answer to this prompt

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Price and specs

Not enough votes to call it. On the specs, Grok 4.20 Beta has the edge: newer, major provider backing.

Grok 4.20 Beta and Sonoma Dusk Alpha compared across 34 shared prompts
SpecGrok 4.20 BetaSonoma Dusk Alpha
Input price$2/M tokensFree
Output price$6/M tokensFree
Context window2.0M tokens2.0M tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedMar 2026Sep 2025
At 10M a month$20.00$20.00$0$0
1M10M100M1B10M tokens

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

Where to run it1 host
Grok 4.20 Beta1 host
HostInOutContextUptime
  • xAI$1.25 in·$2.50 out·2M·100% up
Sonoma Dusk Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 13 Oct 2026.

Common questions

What is the difference between Grok 4.20 Beta and Sonoma Dusk Alpha?

Grok 4.20 Beta is developed by xAI while Sonoma Dusk Alpha is developed by OpenRouter. Grok 4.20 Beta has a 2.0M token context window vs Sonoma Dusk Alpha's 2.0M. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

Which is better, Grok 4.20 Beta or Sonoma Dusk Alpha?

It depends on your use case. Grok 4.20 Beta and Sonoma Dusk Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

How much does Grok 4.20 Beta cost compared to Sonoma Dusk Alpha?

Grok 4.20 Beta costs $2/M input tokens and Sonoma Dusk Alpha costs $0/M input tokens. Sonoma Dusk Alpha is $2.00/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 4.20 Beta and Sonoma Dusk Alpha on Rival?

This page shows a side-by-side comparison of Grok 4.20 Beta and Sonoma Dusk Alpha 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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  • Grok 4.20 Beta vs Mistral Large 4Landed Oct 2026
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Same lab, same size, long tail

  • Grok 4.20 Beta vs Grok 4.20 Multi-Agent BetaVersion compare
  • Grok 4.20 Beta vs Grok 4.7Same lab
  • Sonoma Dusk Alpha vs Ox AlphaSame lab
  • Sonoma Dusk Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
  • Sonoma Dusk Alpha vs Qwen3.8 27BNew provider
  • Sonoma Dusk Alpha vs Qwen3.8 FlashNew provider
  • Sonoma Dusk Alpha vs Qwen3.8 MaxSame size
  • Sonoma Dusk Alpha vs Qwen3.8 Max (0902)New provider

Model pages

  • Grok 4.20 Beta53 outputs, specs and price
  • Sonoma Dusk Alpha35 outputs, specs and price
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