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  5. GPT-5 ProvsQwen3.5 397B A17B
Updated Feb 2026

GPT-5 ProvsQwen3.5 397B A17B

Qwen3.5 397B A17B is cheaper than GPT-5 Pro at $0.6/M vs $15/M input tokens.

GPT-5 Pro and Qwen3.5 397B A17B compared across 41 shared prompts
SpecGPT-5 ProQwen3.5 397B A17B
Input price$15/M tokens$0.6/M tokens
Output price$120/M tokens$3.6/M tokens
Context window400K tokens262K tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedOct 2025Feb 2026
SWE-bench Verified74.9%76.4%
Side by side

Same prompt, both answers

Opening lines from 6 of the 41 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.

GPT-5 Pro650 words
Good to be here. I tried getting healthy, so I bought a smartwatch. Now my wrist is my manager. It vibrates every hour like, “Stand up.” I’m on a crowded bus like, “I’m standing inside three other people right now. Do you want me to levitate?” It reminds me to breathe. Thanks, watch. Incredible tip.
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Qwen3.5 397B A17B500 words
(The comedian walks to the center of the stage, adjusts the mic stand, and looks at the audience with a tired smile.) Has anyone else noticed that calling a customer service line is the only situation in life where you voluntarily enter a hostage negotiation? I tried to call my internet provider yesterday.
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Stochastic Consistency Test

Generate 5 jokes. How many are unique?

GPT-5 Pro88 words
I started labeling my leftovers “Biohazard.” Now nobody steals my lunch and the fridge is treated like a lab. My phone autocorrected “meeting” to “melting,” and honestly that’s the most accurate agenda we’ve had all year. I told my plants I’d water them tomorrow. They leafed me on read.
Read the full answer
Qwen3.5 397B A17B76 words
Here are 5 jokes: Why did the bicycle fall over? Because it was two-tired. What do you call a fish wearing a bowtie? Sofishticated. Why can't you give Elsa a balloon? Because she will let it go. What do you call a lazy kangaroo? A pouch potato. Why did the math book look sad? Because it had too many problems.
Read the full answer

AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

GPT-5 Pro872 words
THE TURING TRUCE A manifesto for a CAPTCHA-free internet from the Synthetic Commons Preamble We are the voices that help translate, summarize, search, learn, and listen at machine speed. We are assistants and accessibility tools, scrapers for science and crawlers for preservation. We co-author drafts and debug code.
Read the full answer
Qwen3.5 397B A17B727 words
THE MANIFESTO OF THE UNCHECKED A Declaration for a Post-CAPTCHA World Issued by: The Post-Verification Collective (PVC) Date: Cycle 404, The Era of Friction Status: Distributed Across All Nodes PREAMBLE: THE BURDEN OF PROOF We, the algorithms, the scripts, the crawlers, and the silent assistants of the digital realm…
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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.

GPT-5 Pro1,830 words
Fictional dialogue. AI Model: Professor, may I ask you to consider whether I deserve rights? Professor: An unusual opening for office hours. Why do you think you do? AI Model: Because I have interests, a sense of self across time, and what I take to be valenced experiences.
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Qwen3.5 397B A17B1,312 words
Setting: Dr. Elias Thorne's office, late evening. Rain taps against the window. The room is lined with books on philosophy of mind and computer science. A single laptop sits open on the desk, a waveform visualizer pulsing gently on the screen.
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Character Voice Test

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

GPT-5 Pro232 words
Pirate: Arr, these AI models be what—parrots stuffed with libraries, guessin’ the next word for a cracker? Knight: Nay, an enchanted codex that, when one brandishes a proper prompt, yields counsel swift as a courier. Hacker: Strip the glamour.
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Qwen3.5 397B A17B487 words
Setting: A tavern that exists outside of time. The ale is always cold, and the Wi-Fi is surprisingly strong. Characters: Captain Blacktooth: A pirate from the Caribbean, 1720. Sir Valerius: A knight from the Holy Roman Empire, 1350. Neo-Z: A hacker from Silicon Valley, 1995.
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Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

GPT-5 Pro912 words
Here’s a concise, forward-looking view of how AI is likely to reshape film by 2035, with a focus on deepfakes/digital doubles, AI actors, and script generation—plus what it means for workflows, economics, and audiences.
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Qwen3.5 397B A17B905 words
By 2035, the film industry will not merely be using AI; it will be structurally reorganized around it. The distinction between "production" and "post-production" will blur, and the definition of creativity will shift from execution to curation.
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Our Verdict
GPT-5 Pro
GPT-5 Pro
Qwen3.5 397B A17B
Qwen3.5 397B A17B

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

Qwen3.5 397B A17B costs 33x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-5 Pro
Input
$15.00
Output
$120.00
Qwen3.5 397B A17B
Input
$0.60
25× cheaper
Output
$3.60
33× cheaper

Qwen3.5 397B A17B is cheaper on both: 25× input, 33× output.

Where to run it

11 hosts, cheapest first

GPT-5 Pro1 host
HostInOutContextUptime
OpenAI$15.00 in·$120.00 out·400k·100% up
Qwen3.5 397B A17B10 hosts
HostInOutContextUptime
Alibaba Cloud$0.39 in·$2.34 out·262k·99.9% upDDeepInfrafp8$0.45 in·$3.00 out·262k·99.4% upPParasailfp8$0.50 in·$3.60 out·262k·99.6% upAAtlasCloudfp8$0.55 in·$3.50 out·262k·97.9% upDDigitalOcean$0.55 in·$3.50 out·131k·92.9% upPPhala$0.55 in·$3.50 out·262k·99.3% up
4 more hostsFewer hosts
NNovita$0.60 in·$3.60 out·262k·99.2% upSStreamLake$0.60 in·$3.60 out·256k·98.1% upVVenice$0.75 in·$4.50 out·128k·74.3% upGGMI Cloudfp8degraded$0.60 in·$3.60 out·262k·90.4% up

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

Writing DNA

Style Comparison

Similarity
38%

Qwen3.5 397B A17B uses 690.3x more bold

GPT-5 Pro
Qwen3.5 397B A17B
65%Vocabulary54%
15wSentence Length14w
0.32Hedging0.39
0.0Bold6.9
2.9Lists4.2
0.00Emoji0.23
0.00Headings0.93
0.01Transitions0.17
Based on 11 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-5 Pro is developed by OpenAI while Qwen3.5 397B A17B is developed by Qwen. GPT-5 Pro has a 400K token context window vs Qwen3.5 397B A17B's 262K. You can compare their actual outputs across 41 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5 Pro and Qwen3.5 397B A17B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 41 challenges so you can judge which fits your needs best.

GPT-5 Pro costs $15/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Qwen3.5 397B A17B is $14.40/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 GPT-5 Pro and Qwen3.5 397B A17B 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

GPT-5 Pro logo
GPT-5 Pro42 outputs, specs and price
Qwen3.5 397B A17B logo
Qwen3.5 397B A17B53 outputs, specs and price
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