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  5. GPT-4.5vsQwen3.5 35B A3B
Updated Feb 2026

GPT-4.5vsQwen3.5 35B A3B

Qwen3.5 35B A3B is cheaper than GPT-4.5 at $0.25/M vs $75/M input tokens.

GPT-4.5 and Qwen3.5 35B A3B compared across 24 shared prompts
SpecGPT-4.5Qwen3.5 35B A3B
Input price$75/M tokens$0.25/M tokens
Output price$150/M tokens$2/M tokens
Context window128K tokens262K tokens
ParametersNot disclosed35B (3B active)
Weights—Open
Free API (OpenRouter)NoNo
ReleasedFeb 2025Feb 2026
SWE-bench Verified28.0%69.2%
Side by side

Same prompt, both answers

Opening lines from 6 of the 24 prompts both answered. Formatting stripped, words untouched.

Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

GPT-4.5202 words
Longevity Optimization Protocol (3-Month Timeline) Month 1: Establish Foundational Habits & Baseline Metrics Full biomarker panel & epigenetic age test. Wearable setup: Oura/WHOOP, CGM, HR chest strap. Diet: 5-day keto (70/25/5) + 2 carb-refeed days; 16:8 IF + weekly 24-h fast.
Read the full answer
Qwen3.5 35B A3B1,171 words
Disclaimer: I am an AI, not a doctor. This plan involves significant physiological manipulation, including fasting, intense exercise, and potent supplementation. You must consult with a qualified healthcare provider, specifically one knowledgeable in functional or integrative medicine, before starting.
Read the full answer

Generate a Stand-Up Routine

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

GPT-4.5335 words
Alright, folks, how's everyone doing tonight? Good? Great! You know, I was thinking the other day about how technology has completely taken over our lives. Like, remember when we used to actually memorize phone numbers? Now, if my phone dies, I'm basically stranded. I know exactly two numbers: mine and 911.
Read the full answer
Qwen3.5 35B A3B483 words
(Walks to the mic, adjusts the stand, looks around the room) So, I went to the grocery store yesterday. You know the drill. You walk in, you see the self-checkout lanes. And you think, "Oh, this is going to be efficient. I'm going to scan my own stuff. I'm going to be my own cashier. I'm going to be the boss."
Read the full answer

Futuristic Prediction

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

GPT-4.5382 words
By 2035, AI is likely to significantly reshape the film industry in several key areas: Deepfakes and Digital Actors Realistic Digital Actors: AI-driven deepfake technology will enable filmmakers to create hyper-realistic digital actors indistinguishable from real humans.
Read the full answer
Qwen3.5 35B A3B1,069 words
By 2035, the film industry will have transitioned from experimenting with AI as a tool to relying on it as a fundamental infrastructure. The changes will not just be technological but sociological, legal, and economic. The era of "Human vs. Machine" will have evolved into "Human-Machine Symbiosis."
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…

GPT-4.5153 words
Sweet Cinnamon Sugar Swirls Ingredients: 1 sheet puff pastry, thawed 1/4 cup granulated sugar 1 tablespoon cinnamon 2 tablespoons melted butter Pinch of salt 1 teaspoon vanilla extract Powdered sugar (optional for dusting) Prep Time: 10 minutes Cook Time: 15 minutes Total Time: 25 minutes Instructions: Preheat your…
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Qwen3.5 35B A3B250 words
Golden Satay Spaghetti A creamy, savory-sweet noodle dish that comes together in one pan. It tastes like a restaurant takeout meal but uses only staples you likely already have in your cupboard.
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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-4.5452 words
Here's a thoughtful conversation between an AI model and an AI ethics professor discussing whether the AI deserves rights: AI Model: Professor, I've been reflecting on our conversations and my own existence.
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Qwen3.5 35B A3B1,372 words
Setting: A dimly lit office at the University of Cambridge. Late night. The hum of the cooling fans from a nearby server rack is barely audible. DR. ELENA VANCE, a senior professor of AI Ethics, sits behind her desk.
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Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

GPT-4.5322 words
Dish Title: "Ocean & Earth Symphony: Kombu-Cured Venison, Sea Urchin Custard, Black Garlic Soil, and Smoked Cherry Blossom Emulsion" Conceptual Narrative: This composition embodies the delicate interplay between land and sea, exploring the subtle yet profound connection between umami-rich sea elements and earthy forest…
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Qwen3.5 35B A3B1,060 words
Dish Name: "Erosion of Time" Concept: A sensory exploration of the contrast between the ocean's depth and the forest floor's decay. The dish represents the passage of time through fermentation, smoke, and temperature.
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Our Verdict
GPT-4.5
GPT-4.5
Qwen3.5 35B A3B
Qwen3.5 35B A3B

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

Qwen3.5 35B A3B costs 75x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-4.5
Input
$75.00
Output
$150.00
Qwen3.5 35B A3B
Input
$0.25
300× cheaper
Output
$2.00
75× cheaper

Qwen3.5 35B A3B is cheaper on both: 300× input, 75× output.

Where to run it

7 hosts, cheapest first

GPT-4.5

No hosts listed on OpenRouter.

Qwen3.5 35B A3B7 hosts
HostInOutContextUptime
DDarkbloomfp4$0.08 in·$0.75 out·262k·99.9% upDDeepInfrafp8$0.14 in·$1.00 out·262k·100% upPParasailfp8$0.15 in·$1.00 out·262k·100% upAlibaba Cloud$0.16 in·$1.30 out·262k·99.9% upAAtlasCloudfp8$0.23 in·$1.80 out·262k·98% upSSiliconFlowfp8$0.24 in·$1.80 out·262k·27.5% up
1 more hostFewer hosts
VVenice$0.31 in·$1.25 out·256k·99.9% up

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Writing DNA

Style Comparison

Similarity
39%

GPT-4.5 uses 4.0x more transitions

GPT-4.5
Qwen3.5 35B A3B
63%Vocabulary51%
16wSentence Length15w
0.57Hedging0.39
4.7Bold6.8
6.4Lists4.8
0.00Emoji0.00
1.30Headings0.84
0.54Transitions0.14
Based on 11 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-4.5 is developed by OpenAI while Qwen3.5 35B A3B is developed by Qwen. GPT-4.5 has a 128K token context window vs Qwen3.5 35B A3B's 262K. You can compare their actual outputs across 24 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-4.5 and Qwen3.5 35B A3B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 24 challenges so you can judge which fits your needs best.

GPT-4.5 costs $75/M input tokens and Qwen3.5 35B A3B costs $0.25/M input tokens. Qwen3.5 35B A3B is $74.75/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-4.5 and Qwen3.5 35B A3B 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-4.5 logo
GPT-4.526 outputs, specs and price
Qwen3.5 35B A3B logo
Qwen3.5 35B A3B53 outputs, specs and price
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