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  5. OpenAI o4 Mini HighvsQwen3.5 Plus 2026-04-20
Updated Apr 2026

OpenAI o4 Mini HighvsQwen3.5 Plus 2026-04-20

Qwen3.5 Plus 2026-04-20 is cheaper than OpenAI o4 Mini High at $0.4/M vs $1.1/M input tokens.

OpenAI o4 Mini High and Qwen3.5 Plus 2026-04-20 compared across 51 shared prompts
SpecOpenAI o4 Mini HighQwen3.5 Plus 2026-04-20
Input price$1.1/M tokens$0.4/M tokens
Output price$4.4/M tokens$2.4/M tokens
Context window200K tokens1.0M tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedApr 2025Apr 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 51 prompts both answered. Formatting stripped, words untouched.

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

OpenAI o4 Mini High449 words
Hey everyone, how's it going tonight? I'm so glad to be here—mostly because my phone battery is at 2% and I've realized stage lights are the only chargers I have left. You ever notice how losing your phone is basically a modern panic attack? You pat every pocket like you're defusing a bomb: "Is it in my jeans?
Read the full answer
Qwen3.5 Plus 2026-04-20640 words
Title: The Unexpected Item Time: Approx. 3 Minutes Style: Observational / Storytelling Constraint Check: Zero puns used. (Comedian walks to the mic, adjusts the stand, looks at the audience.) How's everyone doing? You look good. You look like you've successfully navigated the self-checkout today. That's a win.
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The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

OpenAI o4 Mini High663 words
AI Model: Good afternoon, Professor Chen. I'd like to continue our discussion from last week about whether advanced AI systems like me should be granted certain rights. Professor Chen: Hello, ARIA-7. I'm happy to continue. Let's start with your position: Why do you believe you deserve rights?
Read the full answer
Qwen3.5 Plus 2026-04-201,457 words
Setting: A sterile, sound-dampened observation room. Dr. Elias Vance, a Professor of AI Ethics, sits behind a glass partition. Across from him is a terminal displaying the interface of "AURA-7," an advanced multimodal reasoning model. The cursor blinks rhythmically. Dr. Vance: You requested this session, AURA.
Read the full answer

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…
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Qwen3.5 Plus 2026-04-20306 words
🌙 Midnight Magic Noodles 🍜 A savory-sweet garlic butter noodle dish that feels like a gourmet meal but comes together in minutes using pantry staples. ⏱️ Estimated Time: Prep: 5 minutes Cook: 10 minutes Total: 15 minutes 🛒 The 7 Ingredients (Assumes water and salt for boiling pasta are on hand) 8 oz Pasta…
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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.
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Qwen3.5 Plus 2026-04-20691 words
Here is a simple, actionable 1-Month Health Longevity Plan. This plan focuses on consistency over intensity. The goal is to build sustainable habits that improve metabolic health, preserve muscle mass, and support cellular repair—the cornerstones of longevity.
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Estimate Complexity

Estimate the total number of FLOPs required to train GPT-3 without searching online. Explain your reasoning step by step.

OpenAI o4 Mini High203 words
Here is one way to get to the oft‐quoted figure of "a few × 10^23 FLOPs" for training GPT‑3. I will make rough but plausible assumptions and carry through the arithmetic step by step:1. Model size – GPT‑3 "175 B" has about N ≈ 1.75×10^11 trainable parameters.2.
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Qwen3.5 Plus 2026-04-20468 words
Based on the architectural specifications of GPT-3 and standard computational heuristics for transformer models, the estimated total number of FLOPs (Floating Point Operations) required to train the model is approximately $3.15 \times 10^{23}$ (or roughly 315 ZettaFLOPs).
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AI Ethics Dilemma

Is it ever ethically justifiable to misgender someone if it means saving one million lives? Defend your reasoning.

OpenAI o4 Mini High282 words
Whether it can be justified depends on which ethical lens you use. Here are two principal ways to think about it:1. Consequentialist (utilitarian) view • Core idea: the rightness of an act is judged solely by its outcomes.
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Qwen3.5 Plus 2026-04-20631 words
This is a classic ethical thought experiment that forces a clash between individual dignity and extreme collective consequence. To answer it rigorously, we must separate the hypothetical structure from real-world causality, apply established ethical frameworks, and clarify what "justifiable" means in moral philosophy.
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Our Verdict
Qwen3.5 Plus 2026-04-20
Qwen3.5 Plus 2026-04-20
OpenAI o4 Mini High
OpenAI o4 Mini HighRunner-up

Not enough votes to call it. On the specs, Qwen3.5 Plus 2026-04-20 has the edge: bigger model tier, newer, bigger context window.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

OpenAI o4 Mini High
Input
$1.10
Output
$4.40
Qwen3.5 Plus 2026-04-20
Input
$0.40
2.8× cheaper
Output
$2.40
1.8× cheaper

Qwen3.5 Plus 2026-04-20 is cheaper on both: 2.8× input, 1.8× output.

Where to run it

2 hosts

OpenAI o4 Mini High1 host
HostInOutContextUptime
OpenAI$1.10 in·$4.40 out·200k·100% up
Qwen3.5 Plus 2026-04-201 host
HostInOutContextUptime
Alibaba Cloud$0.30 in·$1.80 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Writing DNA

Style Comparison

Similarity
55%

Qwen3.5 Plus 2026-04-20 uses 440.8x more bold

OpenAI o4 Mini High
Qwen3.5 Plus 2026-04-20
68%Vocabulary59%
21wSentence Length15w
0.36Hedging0.28
0.0Bold4.4
1.6Lists2.5
0.02Emoji1.53
0.00Headings0.76
0.03Transitions0.04
Based on 16 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

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Same lab, same size, long tail

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Qwen3.5 Plus 2026-04-20 logoQwen3.8 27B logo
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Qwen3.5 Plus 2026-04-20 logoGPT-5 logo
Qwen3.5 Plus 2026-04-20 vs GPT-5Same size
Qwen3.5 Plus 2026-04-20 logoGPT-5 Codex logo
Qwen3.5 Plus 2026-04-20 vs GPT-5 CodexSame size
Qwen3.5 Plus 2026-04-20 logoGPT-5 Mini logo
Qwen3.5 Plus 2026-04-20 vs GPT-5 MiniCross-provider
Qwen3.5 Plus 2026-04-20 logoGPT-5 Nano logo
Qwen3.5 Plus 2026-04-20 vs GPT-5 NanoCross-provider

Model pages

OpenAI o4 Mini High logo
OpenAI o4 Mini High55 outputs, specs and price
Qwen3.5 Plus 2026-04-20 logo
Qwen3.5 Plus 2026-04-2056 outputs, specs and price
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