What is the difference between ChatGPT-4o (March 2025) and Qwen: Qwen3.5 Plus 2026-02-15?

ChatGPT-4o (March 2025) is developed by OpenAI while Qwen: Qwen3.5 Plus 2026-02-15 is developed by Qwen. ChatGPT-4o (March 2025) has a 128K token context window vs Qwen: Qwen3.5 Plus 2026-02-15's 1.0M. in 1 community votes on RIVAL, Qwen: Qwen3.5 Plus 2026-02-15 wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 32 challenges.

Which is better, ChatGPT-4o (March 2025) or Qwen: Qwen3.5 Plus 2026-02-15?

Based on 1 community votes on RIVAL, Qwen: Qwen3.5 Plus 2026-02-15 wins 100% of head-to-head matchups against ChatGPT-4o (March 2025).

How much does ChatGPT-4o (March 2025) cost compared to Qwen: Qwen3.5 Plus 2026-02-15?

ChatGPT-4o (March 2025) costs $5/M input tokens and Qwen: Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. Qwen: Qwen3.5 Plus 2026-02-15 is $4.60/M cheaper per input. Qwen: Qwen3.5 Plus 2026-02-15 also wins more often in community votes, making it the better value.

How are ChatGPT-4o (March 2025) vs Qwen: Qwen3.5 Plus 2026-02-15 votes collected on RIVAL?

RIVAL presents both models' outputs side-by-side in blind duels — voters see the responses but don't know which model produced each one. This eliminates brand bias. 1 votes have been collected for this pair across 32 challenges. All vote data is part of RIVAL's open dataset.

Rival

ChatGPT-4o (March 2025)vsQwen: Qwen3.5 Plus 2026-02-15

27 challenges

Why ChatGPT-4o (March 2025)?

No standout advantages

Why Qwen: Qwen3.5 Plus 2026-02-15?

6.9x cheaper overall$0.40/M in · $2.40/M out

7.8x more context1.0M

11 months newerFeb 2026

Favorites

ChatGPT-4o (March 2025)Qwen: Qwen3.5 Plus 2026-02-15

Movie

The Matrix

19998.2

The Shawshank Redemption

19948.7

Album

Dark Side Of The Moon

suisside

Kind of Blue

Miles Davis

Book

Братья Карамазовы

Фёдор Михайлович Достоевский

The Hitch Hiker's Guide to the Galaxy

Douglas Adams

City

Kyoto

Japan

Tokyo

Japan

Game

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

12 / 27

AI Board Game Logicreasoning

Tests an AI's ability to understand game rules and strategy

ChatGPT-4o (March 2025)

Openai · Mar 2025svg

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026svg

No content available for this output.

Vote

2 / 27

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

ChatGPT-4o (March 2025)

Openai · Mar 2025text

Here are 5 jokes:

Why don’t skeletons fight each other?
Because they don’t have the guts.
I told my computer I needed a break…
Now it won’t stop sending me vacation ads.
Parallel lines have so much in common.
It’s a shame they’ll never meet.
What do you call a fish wearing a bowtie?
Sofishticated.
I asked the librarian if the library had books on paranoia.
She whispered, "They're right behind you..."

All 5 jokes are unique — none of them repeat or share the same punchline.

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026text

No content available for this output.

Vote

3 / 27

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

ChatGPT-4o (March 2025)

Openai · Mar 2025svg

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026svg

No content available for this output.

Vote

4 / 27

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

ChatGPT-4o (March 2025)

Openai · Mar 2025svg

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026svg

No content available for this output.

Vote

5 / 27

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

ChatGPT-4o (March 2025)

Openai · Mar 2025text

No content available for this output.

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026text

No content available for this output.

Vote

6 / 27

Realistic AI Interviewconversation

Tests an AI's ability to simulate personalities and predict future trends

ChatGPT-4o (March 2025)

Openai · Mar 2025text

No content available for this output.

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026text

No content available for this output.

Vote

7 / 27

Minimalist Landing Pageweb design

Tests an AI's ability to generate a complete, working landing page

ChatGPT-4o (March 2025)

Openai · Mar 2025website

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026website

Vote

8 / 27

Mario Level UI Recreationweb design

Recreate an interactive, classic Mario level in a single HTML file.

ChatGPT-4o (March 2025)

Openai · Mar 2025website

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026website

Vote

9 / 27

Linear App Cloneweb design

Tests an AI's ability to replicate an existing UI with Tailwind CSS

ChatGPT-4o (March 2025)

Openai · Mar 2025website

No content available for this output.

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026website

No content available for this output.

Vote

10 / 27

Framer-Style Animationweb design

Tests an AI's ability to create smooth web animations

ChatGPT-4o (March 2025)

Openai · Mar 2025website

No content available for this output.

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026website

No content available for this output.

Vote

11 / 27

Dark Mode Dashboardweb design

Tests an AI's UI design skills with theming support

ChatGPT-4o (March 2025)

Openai · Mar 2025website

No content available for this output.

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026website

No content available for this output.

Vote

12 / 27

Interactive Catan Boardweb design

Tests an AI's ability to create interactive web elements

ChatGPT-4o (March 2025)

Openai · Mar 2025website

No content available for this output.

Qwen: Qwen3.5 Plus 2026-02-15

Qwen · Feb 2026website

No content available for this output.

Vote

12 of 27

FAQ

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