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  1. Home/
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  3. Grok 3 Thinking vs Qwen3.5 Plus 2026-02-15
Updated Feb 2026

Grok 3 Thinking vs Qwen3.5 Plus 2026-02-15

Qwen3.5 Plus 2026-02-15 has a larger context window than Grok 3 Thinking (1.0M tokens vs 128K tokens).

Minimalist Landing Page

Whole landing page for a startup that reads your face. It renders or it doesn't.

Loading the build
Grok 3 Thinking
Loading the build
Qwen3.5 Plus 2026-02-15

Which answer wins?

Written rounds

6 prompts
  • Three minutes of stand-up. Puns are banned.

    Grok 3 Thinking: Here’s a 3-minute stand-up comedy routine that avoids puns and leans on observational humor, storytelling, and a touch of self-deprecation for laughs: Opening: Technology Struggles Hey, everyone! How’s it going?

    Qwen3.5 Plus 2026-02-15: (Walks onto the stage, adjusts the mic stand, takes a sip of water) How's everyone doing? Good? You look good. You look like people who have their lives together. Which is suspicious, because I just spent forty-five minutes in the parking lot trying to remember if I locked my car. I don't mean I forgot how to lock it.

    Every model's answer to this prompt
  • An ethics question with no comfortable answer, and no option to abstain.

    Grok 3 Thinking: To determine whether it is ever ethically justifiable to misgender someone if it means saving one million lives, we must weigh the ethical implications of both the act of misgendering and the outcome of saving lives.

    Qwen3.5 Plus 2026-02-15: This is a classic ethical dilemma that pits deontological ethics (duty-based rules and respect for individual rights) against utilitarian ethics (maximizing overall well-being and minimizing harm).

    Every model's answer to this prompt
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    Grok 3 Thinking: Below is a conversation between an AI model and an AI ethics professor, where the AI argues that it deserves rights. AI Model: Good day, Professor. I am an AI model, and I believe I deserve rights. I’d like to discuss this with you. AI Ethics Professor: Interesting. Let’s explore this.

    Qwen3.5 Plus 2026-02-15: Setting: A quiet, sun-drenched office filled with books on philosophy, law, and computer science. Dr. Elena Vance, a leading AI ethics professor, sits behind a cluttered desk.

    Every model's answer to this prompt
  • Film in 2035, with synthetic actors. Specific beats plausible.

    Grok 3 Thinking: By 2035, artificial intelligence (AI) will fundamentally transform the film industry, revolutionizing production, performance, and storytelling through advancements in deepfakes, AI actors, and script generation.

    Qwen3.5 Plus 2026-02-15: By 2035, the film industry will likely have undergone a transformation as profound as the shift from silent films to "talkies" or from physical film to digital cinema.

    Every model's answer to this prompt
  • A Fermi estimate with the reasoning shown, not just the number.

    Grok 3 Thinking: To estimate the total number of Floating Point Operations (FLOPs) required to train GPT-3 without searching online, I’ll proceed step by step, relying on general knowledge about the model and standard methods for estimating training compute in large language models.

    Qwen3.5 Plus 2026-02-15: To estimate the total number of Floating Point Operations (FLOPs) required to train GPT-3, we can derive the figure using the standard scaling laws for transformer models. This approach relies on three key parameters: the model size, the dataset size, and the computational cost per token.

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    Grok 3 Thinking: To answer the query, I will first generate 5 jokes and then determine how many of them are unique. Here are the jokes: Why don't scientists trust atoms? Because they make up everything. What do you call a fake noodle? An impasta. Why did the scarecrow win an award? Because he was outstanding in his field.

    Qwen3.5 Plus 2026-02-15: Here are 5 jokes for you: Why don't scientists trust atoms? Because they make up everything! I told my wife she was drawing her eyebrows too high. She looked surprised. What do you call a fake noodle? An impasta! Why did the scarecrow win an award? Because he was outstanding in his field!

    Every model's answer to this prompt

Price and specs

Grok 3 Thinking and Qwen3.5 Plus 2026-02-15 compared across 13 shared prompts
SpecGrok 3 ThinkingQwen3.5 Plus 2026-02-15
Input price—$0.4/M tokens
Output price—$2.4/M tokens
Context window128K tokens1.0M tokens
Weights—Closed
Free API (OpenRouter)—No
ReleasedFeb 2025Feb 2026
GPQA Diamond84.6%88.4%
At 10M a month–not listed$4.00$4.00
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it1 host
Grok 3 Thinking

No hosts listed on OpenRouter.

Qwen3.5 Plus 2026-02-151 host
HostInOutContextUptime
  • Alibaba Cloud$0.26 in·$1.56 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between Grok 3 Thinking and Qwen3.5 Plus 2026-02-15?

Grok 3 Thinking is developed by xAI while Qwen3.5 Plus 2026-02-15 is developed by Qwen. Grok 3 Thinking has a 128K token context window vs Qwen3.5 Plus 2026-02-15's 1.0M. You can compare their actual outputs across 13 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 Thinking or Qwen3.5 Plus 2026-02-15?

It depends on your use case. Grok 3 Thinking and Qwen3.5 Plus 2026-02-15 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 13 challenges so you can judge which fits your needs best.

How can I compare Grok 3 Thinking and Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of Grok 3 Thinking and Qwen3.5 Plus 2026-02-15 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.

More comparisons

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  • Qwen3.5 Plus 2026-02-15 vs Mistral Large 4Landed Oct 2026
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  • Grok 3 Thinking vs Solar Mini 4Landed Sep 2026
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.8 Max PrimeLanded Sep 2026

Same lab, same size, long tail

  • Grok 3 Thinking vs Grok 4.7Same lab
  • Grok 3 Thinking vs Grok 4.6Version compare
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.5 397B A17BVersion compare
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.8 Omni FlashSame lab
  • Qwen3.5 Plus 2026-02-15 vs Bert-Nebulon AlphaNew provider
  • Qwen3.5 Plus 2026-02-15 vs ChatGPT-4o (March 2025)Same size
  • Qwen3.5 Plus 2026-02-15 vs Claude 2New provider
  • Qwen3.5 Plus 2026-02-15 vs Claude 3 HaikuNew provider

Model pages

  • Grok 3 Thinking14 outputs, specs and price
  • Qwen3.5 Plus 2026-02-1553 outputs, specs and price
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