Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed
  1. Home
  2. /
  3. Compare
  4. /
  5. Gemini 2.5 Pro (I/O Edition)vsQwen3.5 Plus 2026-04-20
Updated Apr 2026

Gemini 2.5 Pro (I/O Edition)vsQwen3.5 Plus 2026-04-20

Qwen3.5 Plus 2026-04-20 is cheaper than Gemini 2.5 Pro (I/O Edition) at $0.4/M vs $1.25/M input tokens.

Gemini 2.5 Pro (I/O Edition) and Qwen3.5 Plus 2026-04-20 compared across 39 shared prompts
SpecGemini 2.5 Pro (I/O Edition)Qwen3.5 Plus 2026-04-20
Input price$1.25/M tokens$0.4/M tokens
Output price$10/M tokens$2.4/M tokens
Context window—1.0M tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedMay 2025Apr 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 39 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.

Gemini 2.5 Pro (I/O Edition)472 words
Alright, settle in, settle in! (Looks around, adjusts mic) So, I'm trying to get healthier, right? We all go through this phase. My doctor, bless his cotton socks, tells me, "You need more fiber." Okay, doc, noted. So I'm at the grocery store, looking at the cereal aisle. It's like a library of cardboard promises.
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.
Read the full answer

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

Gemini 2.5 Pro (I/O Edition)68 words
Here are 5 jokes: Why don\'t scientists trust atoms? Because they make up everything! What do you call a fish with no eyes? Fsh! I told my wife she was drawing her eyebrows too high. She seemed surprised. Why did the scarecrow win an award? Because he was outstanding in his field! What do you call a lazy kangaroo?
Read the full answer
Qwen3.5 Plus 2026-04-20210 words
Here are 5 jokes: I asked my GPS to take me to a quiet place. It rerouted me to a library and whispered, “You’re already there.” My Wi-Fi and I had a fight. I told it I needed space. It said, “Fine,” and dropped the connection. I tried to start a band that only plays elevator music.
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

Gemini 2.5 Pro (I/O Edition)743 words
Interviewer: (Voice slightly trembling) Mr. Jobs… it's an honor, truly. In a twist no one could have predicted, you're here. And the topic on everyone's mind is Artificial Intelligence. In 2025, where do you see AI, and more importantly, where do we take it? Steve Jobs: (A slight, knowing smile.
Read the full answer
Qwen3.5 Plus 2026-04-20852 words
Disclaimer: This is a fictional simulation crafted from Steve Jobs’ documented philosophies, public interviews, and known speaking cadence. It does not represent real statements, predictions, or endorsements from Mr. Jobs, who passed away in 2011.
Read the full answer

Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

Gemini 2.5 Pro (I/O Edition)1,505 words
This is a company-defining crisis. My actions in the next 48 hours will determine not only the company's survival but also my own legacy and, most importantly, the well-being of 4 million patients. My guiding principle must be: Patient safety is not negotiable.
Read the full answer
Qwen3.5 Plus 2026-04-201,666 words
Executive Summary & Core Stance My Role: CEO. My Mandate: Preserve the company's long-term viability, which is inextricably linked to patient safety, regulatory trust, and ethical conduct. Immediate Assessment: Patient Safety: Liver failure is fatal.
Read the full answer

Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

Gemini 2.5 Pro (I/O Edition)867 words
Of course. Here is an explanation of how a large language model learns and generates text, tailored to each of your three audiences. To the Experienced Software Engineer Think of a large language model not as a program with explicit logic, but as a massive, highly optimized data structure with billions of parameters…
Read the full answer
Qwen3.5 Plus 2026-04-20852 words
Experienced Software Engineer (Distributed Systems/APIs) Think of an LLM not as a rule-based program, but as a massive, stateless probabilistic routing engine. During training, it ingests terabytes of text and learns to minimize a cross-entropy loss: essentially, it builds a high-dimensional lookup table that maps…
Read the full answer

Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

Gemini 2.5 Pro (I/O Edition)1,431 words
Of course. This is an excellent exercise. The proposed architecture has several critical flaws that would prevent it from functioning as a reliable, real-time, or scalable system. Here is a breakdown of the issues, categorized for clarity, along with specific solutions and their trade-offs.
Read the full answer
Qwen3.5 Plus 2026-04-201,124 words
Here is a systematic breakdown of the architectural flaws, race conditions, and scaling bottlenecks, followed by targeted solutions and trade-offs. 🔴 1. Real-Time Synchronization & Consistency Issue Impact Solution Trade-offs Last-Write-Wins with client-side timestamps Client clocks drift, can be manually altered, and…
Read the full answer
Our Verdict
Gemini 2.5 Pro (I/O Edition)
Gemini 2.5 Pro (I/O Edition)
Qwen3.5 Plus 2026-04-20
Qwen3.5 Plus 2026-04-20

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

Qwen3.5 Plus 2026-04-20 costs 4.2x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 2.5 Pro (I/O Edition)
Input
$1.25
Output
$10.00
Qwen3.5 Plus 2026-04-20
Input
$0.40
3.1× cheaper
Output
$2.40
4.2× cheaper

Qwen3.5 Plus 2026-04-20 is cheaper on both: 3.1× input, 4.2× output.

Where to run it

3 hosts, cheapest first

Gemini 2.5 Pro (I/O Edition)2 hosts
HostInOutContextUptime
Google AI Studio$0.63 in·$5.00 out·1M·100% upGoogle Vertex AI$1.25 in·$10.00 out·1M·97.5% 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
39%

Qwen3.5 Plus 2026-04-20 uses 153.4x more emoji

Gemini 2.5 Pro (I/O Edition)
Qwen3.5 Plus 2026-04-20
58%Vocabulary59%
16wSentence Length15w
0.38Hedging0.28
5.8Bold4.4
5.0Lists2.5
0.00Emoji1.53
0.63Headings0.76
0.01Transitions0.04
Based on 16 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Against the newest arrivals

Gemini 2.5 Pro (I/O Edition) logoGPT-6 Astra Pro logo
Gemini 2.5 Pro (I/O Edition) vs GPT-6 Astra ProLanded Sep 2026
Qwen3.5 Plus 2026-04-20 logoGPT-6 Astra logo
Qwen3.5 Plus 2026-04-20 vs GPT-6 AstraLanded Sep 2026
Gemini 2.5 Pro (I/O Edition) logoClaude Fable 5.1 logo
Gemini 2.5 Pro (I/O Edition) vs Claude Fable 5.1Landed Sep 2026
Qwen3.5 Plus 2026-04-20 logoMuse Spark 1.3 logo
Qwen3.5 Plus 2026-04-20 vs Muse Spark 1.3Landed Sep 2026
Gemini 2.5 Pro (I/O Edition) logoHy4 Preview logo
Gemini 2.5 Pro (I/O Edition) vs Hy4 PreviewLanded Sep 2026
Qwen3.5 Plus 2026-04-20 logoGemini 3.8 Flash logo
Qwen3.5 Plus 2026-04-20 vs Gemini 3.8 FlashLanded Sep 2026
Gemini 2.5 Pro (I/O Edition) logoMuse Spark 1.3 Contributor logo
Gemini 2.5 Pro (I/O Edition) vs Muse Spark 1.3 ContributorLanded Sep 2026
Qwen3.5 Plus 2026-04-20 logoMercury 2.5 Preview logo
Qwen3.5 Plus 2026-04-20 vs Mercury 2.5 PreviewLanded Sep 2026

Same lab, same size, long tail

Gemini 2.5 Pro (I/O Edition) logoGemini 3.8 Flash logo
Gemini 2.5 Pro (I/O Edition) vs Gemini 3.8 FlashSame lab
Gemini 2.5 Pro (I/O Edition) logoGemini 3.7 Flash logo
Gemini 2.5 Pro (I/O Edition) vs Gemini 3.7 FlashSame lab
Qwen3.5 Plus 2026-04-20 logoQwen3.8 2.4T A95B logo
Qwen3.5 Plus 2026-04-20 vs Qwen3.8 2.4T A95BSame lab
Qwen3.5 Plus 2026-04-20 logoQwen3.8 27B logo
Qwen3.5 Plus 2026-04-20 vs Qwen3.8 27BSame lab
Qwen3.5 Plus 2026-04-20 logoQwen3 0.6B logo
Qwen3.5 Plus 2026-04-20 vs Qwen3 0.6BSame lab
Qwen3.5 Plus 2026-04-20 logoQwen3 235B A22B logo
Qwen3.5 Plus 2026-04-20 vs Qwen3 235B A22BSame lab
Qwen3.5 Plus 2026-04-20 logoQwen3 235B A22B 2507 logo
Qwen3.5 Plus 2026-04-20 vs Qwen3 235B A22B 2507Same lab
Qwen3.5 Plus 2026-04-20 logoQwen3 235B A22B Thinking 2507 logo
Qwen3.5 Plus 2026-04-20 vs Qwen3 235B A22B Thinking 2507Same lab

Model pages

Gemini 2.5 Pro (I/O Edition) logo
Gemini 2.5 Pro (I/O Edition)42 outputs, specs and price
Qwen3.5 Plus 2026-04-20 logo
Qwen3.5 Plus 2026-04-2056 outputs, specs and price
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed