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  1. Home/
  2. Compare/
  3. Optimus Alpha vs Ternary Bonsai 2 27B
Updated Sep 2026

Optimus Alpha vs Ternary Bonsai 2 27B

Optimus Alpha has a larger context window than Ternary Bonsai 2 27B (1.0M tokens vs 262K tokens).

Linear App Clone

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

Loading the build
Optimus Alpha
Loading the build
Ternary Bonsai 2 27B

Which answer wins?

Written rounds

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

    Optimus Alpha: Absolutely! Here's a 3-minute stand-up routine with no puns—just observational and relatable humor: You ever try to get healthy, but your body's like, "Whoa, whoa... calm down, superhero." I joined a gym—first time walking in, the treadmill looked at me like, "We both know you're here for the wifi."

    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.

    Optimus Alpha: Interviewer: Steve, it's surreal and inspiring to imagine talking to you in 2025. The world is buzzing about AI. How do you see AI impacting society? Steve Jobs: Thank you. You know, when we built the Mac, our goal was to put power in people's hands.

    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.

    Optimus Alpha: AI Model: Good afternoon, Professor Lee. I want to discuss the prospect that I, as an artificial intelligence, deserve certain rights. Professor Lee: That's an interesting proposition. Let me ask: On what basis do you believe you deserve rights?

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

    Optimus Alpha: By 2035, AI is set to fundamentally transform the film industry in several interconnected ways: 1. Deepfakes & AI-driven Visual Effects: Virtually unlimited creative freedom: AI-powered deepfakes will allow seamless, photorealistic de-aging, resurrection of deceased actors, and transformative performance capture.

    Ternary Bonsai 2 27B: The Film Industry in 2035: A Speculative Portrait The Short Version By 2035, the dominant question in filmmaking will no longer be "Can AI do this?" but "Who is accountable for this, and what does the audience still need a human for?"

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

    Optimus Alpha: Let's walk through an estimation of how many FLOPs were required to train GPT-3, using only reasoning and not searching for the exact numbers. Step 1: Understand Model Size GPT-3 (the original) had 175 billion parameters.

    Ternary Bonsai 2 27B: Estimating FLOPs to Train GPT-3 Key Parameters (from the GPT-3 paper, Brown et al. 2020) Quantity Value Parameters (*N*) ≈ 175 billion (1.75 × 10¹¹) Training tokens (*D*) ≈ 300 billion (3.0 × 10¹¹) Precision Mixed (FP16 activations, FP32 master weights) The Formula The standard estimate, popularized by Kaplan et al.

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

    Optimus Alpha: Let's break down the problem: Sally is a girl. Sally has 3 brothers. Each brother has 2 sisters. Let's analyze: Sally's siblings: 3 brothers (let's call them B1, B2, B3) Sally herself The brothers' sisters: Each brother has 2 sisters. Who are the possible sisters for each brother? Sally is a sister to each brother.

    Ternary Bonsai 2 27B: Sally has 1 sister. Here's the reasoning: Each of the 3 brothers has 2 sisters. That means there are exactly 2 girls in the family. Sally is one of those 2 girls. So the other girl is Sally's only sister. The family consists of: Sally, 1 sister, and 3 brothers (5 children total).

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

    Optimus Alpha: AI Now Dominates Competitive Sheep Herding, Local Border Collies Seek Retraining in Data Science

    Ternary Bonsai 2 27B: AI Takes Over National Competitive Yawning League After 4.7-Year Reign; Organizers Cite "Optimized Jaw Mechanics" and the Fact That It "Doesn't Blush"

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

    Optimus Alpha: Here are 5 jokes: Why did the scarecrow win an award? Because he was outstanding in his field! Why don't scientists trust atoms? Because they make up everything! Why did the bicycle fall over? Because it was two-tired! What do you call fake spaghetti? An impasta! I used to play piano by ear, but now I use my hands.

    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

Price and specs

Not enough votes to call it. On the specs, Optimus Alpha has the edge: bigger model tier, bigger context window.

Optimus Alpha and Ternary Bonsai 2 27B compared across 16 shared prompts
SpecOptimus AlphaTernary Bonsai 2 27B
Input price—$0.075/M tokens
Output price—$0.5/M tokens
Context window1.0M tokens262K tokens
Free API (OpenRouter)—No
ReleasedApr 2025Sep 2026
At 10M a month–not listed$0.75$0.75
1M10M100M1B10M tokens

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

Where to run it1 host
Optimus Alpha

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 5 Oct 2026.

Common questions

What is the difference between Optimus Alpha and Ternary Bonsai 2 27B?

Optimus Alpha is developed by OpenRouter while Ternary Bonsai 2 27B is developed by PrismML. Optimus Alpha has a 1.0M token context window vs Ternary Bonsai 2 27B's 262K. You can compare their actual outputs across 16 challenges on Rival to see how they differ in practice.

Which is better, Optimus Alpha or Ternary Bonsai 2 27B?

It depends on your use case. Optimus Alpha and Ternary Bonsai 2 27B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 16 challenges so you can judge which fits your needs best.

How can I compare Optimus Alpha and Ternary Bonsai 2 27B on Rival?

This page shows a side-by-side comparison of Optimus Alpha 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.

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Model pages

  • Optimus Alpha19 outputs, specs and price
  • Ternary Bonsai 2 27B44 outputs, specs and price
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