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  5. OpenAI o4 Mini HighvsTernary Bonsai 2 27B
Updated Sep 2026

OpenAI o4 Mini HighvsTernary Bonsai 2 27B

Ternary Bonsai 2 27B is cheaper than OpenAI o4 Mini High at $0.075/M vs $1.1/M input tokens.

OpenAI o4 Mini High and Ternary Bonsai 2 27B compared across 9 shared prompts
SpecOpenAI o4 Mini HighTernary Bonsai 2 27B
Input price$1.1/M tokens$0.075/M tokens
Output price$4.4/M tokens$0.5/M tokens
Context window200K tokens262K tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedApr 2025Sep 2026
Side by side

Same prompt, both answers

Opening lines from 2 of the 9 prompts both answered. Formatting stripped, words untouched.

Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

OpenAI o4 Mini High244 words
Sun‑Kissed Bean Spaghetti A bright, one‑pot pasta that turns seven simple pantry staples into a satisfying meal in 20 minutes. Ingredients (serves 2–3) 8 oz (about 2 cups) dried spaghetti or any pasta 1 (14.5 oz) can diced tomatoes (with juices) 1 (15 oz) can beans (cannellini, kidney or chickpeas), drained & rinsed…
Read the full answer
Ternary Bonsai 2 27B358 words
🍫 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…
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…

OpenAI o4 Mini High586 words
One‑Month Starter Plan for Better Health & Longevity Focus areas: 1) Diet 2) Exercise 3) Sleep Week 1 – Lay the Foundations • Diet – Track what you eat for 3 days (use a notes app or paper). – Add at least 8 cups (2 L) of water daily. – Include one extra serving of fruit or veg at each meal.
Read the full answer
Ternary Bonsai 2 27B729 words
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.
Read the full answer
Our Verdict
OpenAI o4 Mini High
OpenAI o4 Mini High
Ternary Bonsai 2 27B
Ternary Bonsai 2 27B

Not enough votes to call it. On the specs, nothing separates them.

Ternary Bonsai 2 27B costs 8.8x less per token.

Too close to call
API pricing

Cost per 1M tokens

OpenAI o4 Mini High
Input
$1.10
Output
$4.40
Ternary Bonsai 2 27B
Input
$0.07
15× cheaper
Output
$0.50
8.8× cheaper

Ternary Bonsai 2 27B is cheaper on both: 15× input, 8.8× output.

Where to run it

2 hosts

OpenAI o4 Mini High1 host
HostInOutContextUptime
OpenAI$1.10 in·$4.40 out·200k·100% up
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 23 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

OpenAI o4 Mini High is developed by OpenAI while Ternary Bonsai 2 27B is developed by PrismML. OpenAI o4 Mini High has a 200K token context window vs Ternary Bonsai 2 27B's 262K. You can compare their actual outputs across 9 challenges on Rival to see how they differ in practice.

It depends on your use case. OpenAI o4 Mini High and Ternary Bonsai 2 27B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 9 challenges so you can judge which fits your needs best.

OpenAI o4 Mini High costs $1.1/M input tokens and Ternary Bonsai 2 27B costs $0.075/M input tokens. Ternary Bonsai 2 27B is $1.03/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 OpenAI o4 Mini High 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.

Keep exploring

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Model pages

OpenAI o4 Mini High logo
OpenAI o4 Mini High55 outputs, specs and price
Ternary Bonsai 2 27B logo
Ternary Bonsai 2 27B9 outputs, specs and price
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