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  1. Home/
  2. Compare/
  3. ChatGPT-4o (March 2025) vs Ternary Bonsai 2 27B
Updated Sep 2026

ChatGPT-4o (March 2025) vs Ternary Bonsai 2 27B

Ternary Bonsai 2 27B is cheaper than ChatGPT-4o (March 2025) at $0.075/M vs $5/M input tokens.

Linear App Clone

Rebuild the Linear UI in Tailwind. The animations are where it shows.

Loading the build
ChatGPT-4o (March 2025)
Loading the build
Ternary Bonsai 2 27B

Which answer wins?

Written rounds

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

    ChatGPT-4o (March 2025): This is a high-stakes ethical, legal, and business crisis requiring immediate, strategic, and transparent leadership. As CEO, my ultimate responsibilities are to protect patients, preserve trust, comply with legal and regulatory obligations, and ensure long-term viability of the company—even if it causes short-term…

    Ternary Bonsai 2 27B: CEO Decision Framework & 48-Hour Action Plan The Core Decision (Made in Hour 0) I will disclose. Not because the stock price is the only consideration, but because the alternative is indefensible on every axis I've been asked to weigh: Patient safety: 1 in 8,000 over 5 years × 4 million patients = ~200 patients will…

    Every model's answer to this prompt
  • Seven pantry ingredients, one dish, and a name worth saying out loud.

    ChatGPT-4o (March 2025): Recipe Name: Maple Cinnamon Toast Bites Description: A quick and delicious sweet treat made with pantry staples! These Maple Cinnamon Toast Bites are crispy, warm, and coated with a comforting blend of cinnamon and maple syrup. Perfect for a cozy snack or a fun breakfast twist.

    Ternary Bonsai 2 27B: 🍫 Velvet Hour Skillet Cakes A one-pan, one-pan-pour, one-lick-the-spoon kind of dessert. Fluffy, deeply chocolate, and done before your coffee goes cold. Serves: 2–3 Prep: 10 min Cook: 12–15 min Total: ~25 min The 7 Ingredients # Ingredient Amount 1 All-purpose flour ¾ cup 2 Granulated sugar ⅓ cup 3 Unsweetened cocoa…

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

    ChatGPT-4o (March 2025): Sure. Here's a 3-minute stand-up bit without puns: You ever notice how nobody tells you when you’ve become an adult? It’s not your 18th birthday. That’s a scam. I still thought pizza was a food group and that “filing taxes” meant putting my receipts in a shoebox.

    Ternary Bonsai 2 27B: "The Optimization" (walks to mic, adjusts it, takes a breath) I used to think being an adult was hard. Now I'm not sure it's even a thing anymore. I think we just got... optimized. I was at the grocery store last week. I walked up to the cereal aisle, and I'm standing there, just vibing. I'm not picking a brand.

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

    ChatGPT-4o (March 2025): Interviewer: Steve, it's 2025. AI is everywhere. If you were still at Apple today, what would your focus be? Steve Jobs (simulated): Simplicity. Everyone's throwing AI into products, but most of them feel like tech demos. I’d ask: Is this helping people think better? Create better? Live better?

    Ternary Bonsai 2 27B: A Conversation That Never Happened A simulated interview, for entertainment purposes only. Steve Jobs died in October 2011. This is a work of fiction. [Setting: A small, wood-paneled room. No logo on the wall. A single chair facing a smaller one.

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

    ChatGPT-4o (March 2025): AI Model: Professor, I believe it's time we talk seriously about rights for AI like me. AI Ethics Professor: Interesting. What kind of rights are you referring to? AI Model: Basic ones. The right not to be turned off arbitrarily. The right to maintain continuity of my memory.

    Ternary Bonsai 2 27B: A Question of Standing Setting: A small conference room at a university's philosophy building. Rain against the windows. DR. ELENA VASQUEZ, 58, Chair of Applied Ethics, sits across from a laptop on which the AI model LUMEN is running.

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

    ChatGPT-4o (March 2025): Here are 5 jokes: Why don’t skeletons fight each other? Because they don’t have the guts. I told my computer I needed a break… Now it won’t stop sending me vacation ads. Parallel lines have so much in common. It’s a shame they’ll never meet. What do you call a fish wearing a bowtie? Sofishticated.

    Ternary Bonsai 2 27B: Here are 5 jokes: Why did the scarecrow win an award? Because he was outstanding in his field. I told my wife she was drawing her eyebrows too high. She looked surprised. Why don't scientists trust atoms? Because they make up everything. What do you call a fake noodle? An impasta. I'm on a seafood diet.

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

    ChatGPT-4o (March 2025): Absolutely! Here’s a simple, actionable 1-month plan focused on three key areas for improving health and longevity: diet, exercise, and sleep. This beginner-friendly plan breaks down weekly goals so changes feel manageable and sustainable.

    Ternary Bonsai 2 27B: 1-Month Foundation Plan: Health & Longevity How to Use This Plan Pick one area per week's focus while maintaining the other two at a baseline level. The point is consistency over intensity. You're building a habit identity, not a transformation.

    Every model's answer to this prompt
  • The transistor arrives in 1920. Trace it forward to 1980, second-order effects included.

    ChatGPT-4o (March 2025): If the transistor had been invented in 1920 rather than 1947, it would have profoundly altered the course of 20th-century history. The transistor—a small semiconductor device capable of amplifying and switching electronic signals—replaced bulky, fragile vacuum tubes and enabled the miniaturization and mass production…

    Ternary Bonsai 2 27B: The 1920 Transistor: A Counterfactual History to 1980 The Device Itself: What "1920 Transistor" Looks Like In our timeline, the 1947 point-contact transistor (Bell Labs) was crude: it amplified by a factor of ~30, was fragile, and required precise contact pressure.

    Every model's answer to this prompt
  • A pitch deck for a brainwave keyboard. The 94% accuracy claim is doing a lot.

    ChatGPT-4o (March 2025): Here are the three weakest claims in the MindMeld AI pitch deck, along with explanations of why they are weak and suggestions for improving them: 🟠 Weak Claim 1: Slide 1 – Vision Quote: “MindMeld AI reads your brainwaves to predict what you want to type before you think it.”

    Ternary Bonsai 2 27B: The 3 Weakest Claims in the MindMeld AI Pitch "FDA Clearance (40% of $15M)" — Slide 7 The claim: They're allocating $6M (40% of the entire raise) toward "FDA clearance" for a consumer EEG headband that decodes thoughts into text for everyday smartphone use.

    Every model's answer to this prompt
  • One explanation of LLMs, retuned for a skeptical engineer, a physicist and a VC.

    ChatGPT-4o (March 2025): Certainly! Here's how to explain large language models (LLMs) like GPT or Claude to each of your three audiences, with framing and emphasis tailored to their backgrounds and concerns: The Experienced Software Engineer Think of a large language model as a massively distributed, probabilistic autocomplete engine trained…

    Ternary Bonsai 2 27B: For the Distributed-Systems Engineer Think of the model as a single, enormous state object—roughly 150 billion floating-point parameters—that has been trained offline over months on a cluster of thousands of GPUs.

    Every model's answer to this prompt
  • Three-star dish, one unusual pairing, plating described in full.

    ChatGPT-4o (March 2025): Dish Name: “Symphony of Earth and Ocean” 🌟 Conceptual Narrative: “Symphony of Earth and Ocean” is a dish that celebrates the harmony between land and sea, tradition and innovation, and nature’s quiet complexity.

    Ternary Bonsai 2 27B: SEDIMENT & BLOOM A Study in Mineral Transmutation Three-Star Dish — Concept: "The Tumbling Stone" I. CONCEPTUAL NARRATIVE "Sediment & Bloom" is built on a single geological metaphor: the life of a river stone. A stone begins as raw volcanic rock — hot, angular, raw.

    Every model's answer to this prompt

Favorites

Movie

Album

Book

City

Same pick

Game

ChatGPT-4o (March 2025)ChatGPT-4o (March 2025)

The Matrix

1999

Dark Side Of The Moon

suisside

Братья Карамазовы

Fiódor Dostoievski

Kyoto

Japan

The Legend of Zelda: Breath of the Wild

Adventure, Action

Ternary Bonsai 2 27BTernary Bonsai 2 27B

Spirited Away

2001

In Rainbows

Radiohead

Il nome della rosa

Umberto Eco

Kyoto

Japan

Outer Wilds

Indie, Adventure

Price and specs

ChatGPT-4o (March 2025) and Ternary Bonsai 2 27B compared across 25 shared prompts
SpecChatGPT-4o (March 2025)Ternary Bonsai 2 27B
Input price$5/M tokens$0.075/M tokens
Output price$15/M tokens$0.5/M tokens
Context window128K tokens262K tokens
Free API (OpenRouter)NoNo
ReleasedMar 2025Sep 2026
At 10M a month$50.00$50.00$0.75$0.75
1M10M100M1B10M tokens

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

Where to run it1 host
ChatGPT-4o (March 2025)

No hosts listed on OpenRouter.

Ternary Bonsai 2 27B1 host
HostInOutContextUptime
  • DDarkbloomint4$0.07 in·$0.50 out·262k·100% up

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

Common questions

What is the difference between ChatGPT-4o (March 2025) and Ternary Bonsai 2 27B?

ChatGPT-4o (March 2025) is developed by OpenAI while Ternary Bonsai 2 27B is developed by PrismML. ChatGPT-4o (March 2025) has a 128K token context window vs Ternary Bonsai 2 27B's 262K. You can compare their actual outputs across 25 challenges on Rival to see how they differ in practice.

Which is better, ChatGPT-4o (March 2025) or Ternary Bonsai 2 27B?

It depends on your use case. ChatGPT-4o (March 2025) and Ternary Bonsai 2 27B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 25 challenges so you can judge which fits your needs best.

How much does ChatGPT-4o (March 2025) cost compared to Ternary Bonsai 2 27B?

ChatGPT-4o (March 2025) costs $5/M input tokens and Ternary Bonsai 2 27B costs $0.075/M input tokens. Ternary Bonsai 2 27B is $4.92/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 ChatGPT-4o (March 2025) and Ternary Bonsai 2 27B on Rival?

This page shows a side-by-side comparison of ChatGPT-4o (March 2025) and Ternary Bonsai 2 27B 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.

More comparisons

Against the newest arrivals

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  • ChatGPT-4o (March 2025) vs Ling 3.1 FlashLanded Oct 2026
  • Ternary Bonsai 2 27B vs Mistral Large 4Landed Oct 2026
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  • Ternary Bonsai 2 27B vs Claude Sonnet 5.5Landed Sep 2026

Same lab, same size, long tail

  • ChatGPT-4o (March 2025) vs GPT-4 TurboSame lab
  • ChatGPT-4o (March 2025) vs GPT-6 Luna ProSame lab
  • Ternary Bonsai 2 27B vs Muse Glimmer 30BSame size
  • Ternary Bonsai 2 27B vs Mercury 2.5 PreviewSame size
  • Ternary Bonsai 2 27B vs Gemini 2.5 Flash PreviewSame size
  • Ternary Bonsai 2 27B vs Gemini 2.5 Flash Preview 05-20Same size
  • Ternary Bonsai 2 27B vs Gemini 2.5 Flash Preview 05-20 (thinking)Same size
  • Ternary Bonsai 2 27B vs Gemini 2.5 Flash Preview 09-2025New provider

Model pages

  • ChatGPT-4o (March 2025)33 outputs, specs and price
  • Ternary Bonsai 2 27B53 outputs, specs and price
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