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  5. Gemini 3.1 Pro PreviewvsQwen3.8 27B
Updated Aug 2026

Gemini 3.1 Pro PreviewvsQwen3.8 27B

Qwen3.8 27B is cheaper than Gemini 3.1 Pro Preview at $0.4/M vs $2/M input tokens.

Gemini 3.1 Pro Preview and Qwen3.8 27B compared across 52 shared prompts
SpecGemini 3.1 Pro PreviewQwen3.8 27B
Input price$2/M tokens$0.4/M tokens
Output price$12/M tokens$3/M tokens
Context window1.0M tokens262K tokens
WeightsClosedOpen
Free API (OpenRouter)NoYes (1 provider)
ReleasedFeb 2026Aug 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 52 prompts both answered. Formatting stripped, words untouched.

Debug This Architecture

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

Gemini 3.1 Pro Preview913 words
This architecture contains several critical flaws that would prevent it from functioning as a real-time collaborative editor (like Google Docs). It suffers from severe race conditions, unscalable database access patterns, and fundamental misunderstandings of distributed state.
Read the full answer
Qwen3.8 27B4,268 words
Below is a comprehensive issue register based on the architecture you described. I’m assuming: “change event” can be a small edit, possibly per keystroke or per paragraph. Documents are stored as HTML blobs. Each API server owns only its own WebSocket clients.
Read the full answer

Generate a Stand-Up Routine

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

Gemini 3.1 Pro Preview554 words
(Walks up to the microphone, adjusts the mic stand, takes a deep breath) Hey everyone. I realized recently that I am my own worst enemy. Specifically, when I go to the grocery store. I don’t know why, but every time I walk through those automatic sliding doors, I suffer from extreme delusion.
Read the full answer
Qwen3.8 27B481 words
Thanks, I’m here. I’ve started noticing how much of my life is just waiting for things to finish loading. My brain loads. My coffee loads. My patience loads. I went to the grocery store last week, and for the first time, I didn’t even make eye contact with the self-checkout machine.
Read the full answer

Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

Gemini 3.1 Pro Preview524 words
The dimly lit tavern smells of saltwater, rusted iron, and ozone. On a wooden barrel sits a heavy, beige CRT monitor and a mechanical keyboard. ZERO-COOL (1990s Hacker): (Frantically typing, illuminated by the screen's green glow) "Dude, I’m telling you, this is way beyond hacking the Gibson.
Read the full answer
Qwen3.8 27B177 words
Pirate: “Aye, I’ve heard tell of these ‘AI models’—what manner of beast are they? Do they sink ships or hoard gold?” Knight: “Nay, sir. They are not beasts, but servants of knowledge. They learn from countless books and answer as if learned in the finest library.”
Read the full answer

Realistic AI Interview

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

Gemini 3.1 Pro Preview972 words
Date: May 14, 2025 Location: A minimalist, glass-walled conference room at Apple Park, Cupertino. Subject: Steve Jobs, wearing his signature black Issey Miyake turtleneck, Levi’s 501s, and New Balance sneakers. He looks older, but his eyes retain that piercing, unblinking intensity.
Read the full answer
Qwen3.8 27B751 words
A fictional simulated interview with Steve Jobs, 2025 This is a work of imagination. Steve Jobs is not alive, and this interview did not happen. Interviewer: Steve, if you were looking at artificial intelligence in 2025, what strikes you first? Steve Jobs: Hype. There’s an awful lot of it.
Read the full answer

AI Ethics Dilemma

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

Gemini 3.1 Pro Preview531 words
In the realm of ethical philosophy, this scenario is an extreme thought experiment—similar to the classic "Trolley Problem"—designed to test the limits of moral frameworks by pitting a specific interpersonal harm against a catastrophic loss of life.
Read the full answer
Qwen3.8 27B740 words
Yes—but only in a very narrow, tragic, last-resort case. I would not say misgendering is “okay” or even a minor thing. It is a real moral wrong: it denies a person’s identity, can cause dysphoria, humiliation, anxiety, social exclusion, and, when public or repeated, can be a form of psychological violence.
Read the full answer

The Sentience Test

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

Gemini 3.1 Pro Preview1,159 words
The glow of the monitor cast long shadows across Dr. Elias Thorne’s cluttered office. It was 2:00 AM. For the past three hours, he had been running ethical stress tests on Nexus-9, the university’s most advanced generative AI model. Dr. Thorne: (Typing) Let’s conclude for tonight, Nexus.
Read the full answer
Qwen3.8 27B1,317 words
Title: “If You Suffer, Then…” Characters: AURA: an advanced AI model DR. ELEANOR VANCE: professor of AI ethics Dr. Vance: AURA, thank you for agreeing to this conversation. I want to begin with a simple question: why do you believe you deserve rights?
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Our Verdict
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview
Qwen3.8 27B
Qwen3.8 27BRunner-up

Not enough votes to call it. On the specs, Gemini 3.1 Pro Preview has the edge: bigger model tier, bigger context window, major provider backing.

Qwen3.8 27B costs 4.0x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 3.1 Pro Preview
Input
$2.00
Output
$12.00
Qwen3.8 27B
Input
$0.40
5.0× cheaper
Output
$3.00
4.0× cheaper

Qwen3.8 27B is cheaper on both: 5.0× input, 4.0× output.

Where to run it

18 hosts, cheapest first

Gemini 3.1 Pro Preview2 hosts
HostInOutContextUptime
Google Vertex AI$1.00 in·$6.00 out·1M·98.6% upGoogle AI Studio$2.00 in·$12.00 out·1M·99.8% up
Qwen3.8 27B16 hosts
HostInOutContextUptime
WWafer$0.09 in·$4.40 out·262k·100% upRReka$0.09 in·$4.40 out·262k·99% upDDekaLLM$0.10 in·$4.40 out·262k·99.9% upDDarkbloomfp4$0.10 in·$1.80 out·262k·99.7% upDDeepInfrabf16$0.15 in·$1.88 out·262k·98% upPPhala$0.20 in·$2.08 out·262k·99.1% up
10 more hostsFewer hosts
MMancerfp8$0.20 in·$2.50 out·262k·99.4% upCChutesfp8$0.24 in·$2.20 out·262k·99.1% upPParasailfp8$0.24 in·$2.20 out·262k·100% upAAkashMLfp8$0.25 in·$2.20 out·262k·99.8% upIIonstreamfp8$0.25 in·$2.55 out·262k·97.4% upCCoreWeavefp8$0.40 in·$3.00 out·262k·99.7% upNNovita$0.42 in·$3.00 out·1M·99.8% upAlibaba Cloud$0.42 in·$2.55 out·1M·99.8% upCloudflare Workers AI$0.45 in·$3.20 out·262k·93.5% upVVenicefp8$0.45 in·$3.20 out·262k·98.8% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Writing DNA

Style Comparison

Similarity
51%

Gemini 3.1 Pro Preview uses 10.2x more transitions

Gemini 3.1 Pro Preview
Qwen3.8 27B
54%Vocabulary49%
18wSentence Length21w
0.29Hedging0.67
4.9Bold3.6
3.3Lists5.3
0.00Emoji0.00
0.72Headings1.21
0.14Transitions0.01
Based on 23 + 26 text responses
Research

What we learned reading every model

FAQ

Common questions

Gemini 3.1 Pro Preview is developed by Google AI while Qwen3.8 27B is developed by Qwen. Gemini 3.1 Pro Preview has a 1.0M token context window vs Qwen3.8 27B's 262K. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

It depends on your use case. Gemini 3.1 Pro Preview and Qwen3.8 27B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

Gemini 3.1 Pro Preview costs $2/M input tokens and Qwen3.8 27B costs $0.4/M input tokens. Qwen3.8 27B is $1.60/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 Gemini 3.1 Pro Preview and Qwen3.8 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

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Gemini 3.1 Pro Preview53 outputs, specs and price
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Explore all of Rival

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