What is the difference between Grok 4.1 Fast and Qwen3.5 9B?

Grok 4.1 Fast is developed by xAI while Qwen3.5 9B is developed by Qwen. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, Grok 4.1 Fast or Qwen3.5 9B?

It depends on your use case. Grok 4.1 Fast and Qwen3.5 9B 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.

How can I compare Grok 4.1 Fast and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of Grok 4.1 Fast and Qwen3.5 9B 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.

What is the difference between Grok 4.1 Fast and Qwen3.5 9B?

Grok 4.1 Fast is developed by xAI while Qwen3.5 9B is developed by Qwen. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, Grok 4.1 Fast or Qwen3.5 9B?

It depends on your use case. Grok 4.1 Fast and Qwen3.5 9B 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.

How can I compare Grok 4.1 Fast and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of Grok 4.1 Fast and Qwen3.5 9B 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.

Grok 4.1 Fast vs Qwen3.5 9B: Which Is Better?

Updated Mar 2026

Our Verdict

Grok 4.1 Fast

Qwen3.5 9BRunner-up

No community votes yet. On paper, Grok 4.1 Fast has the edge — bigger model tier, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Grok 4.1 Fast

Input

—

Output

—

Qwen3.5 9B

Input

$0.10

Output

$0.15

Writing DNA

Style Comparison

Similarity

36%

Qwen3.5 9B uses 2.4x more hedging

Grok 4.1 Fast

Qwen3.5 9B

67%Vocabulary47%

15wSentence Length15w

0.17Hedging0.41

4.7Bold6.9

3.7Lists4.8

0.00Emoji0.00

0.99Headings0.91

0.14Transitions0.12

Based on 24 + 21 text responses

Research

What we learned reading every model

Grok 4.1 Fast and Qwen3.5 9B have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Qwen3.5 9B vs MiniMax M3New provider

Qwen3.5 9B vs OpenAI o3New provider

Qwen3.5 9B vs Llama 4 MaverickNew provider

Updated Mar 2026

Our Verdict

Grok 4.1 Fast

Qwen3.5 9BRunner-up

No community votes yet. On paper, Grok 4.1 Fast has the edge — bigger model tier, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Grok 4.1 Fast

Input

—

Output

—

Qwen3.5 9B

Input

$0.10

Output

$0.15

Writing DNA

Style Comparison

Similarity

36%

Qwen3.5 9B uses 2.4x more hedging

Grok 4.1 Fast

Qwen3.5 9B

67%Vocabulary47%

15wSentence Length15w

0.17Hedging0.41

4.7Bold6.9

3.7Lists4.8

0.00Emoji0.00

0.99Headings0.91

0.14Transitions0.12

Based on 24 + 21 text responses

Research

What we learned reading every model

Grok 4.1 Fast and Qwen3.5 9B have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Qwen3.5 9B vs MiniMax M3New provider

Qwen3.5 9B vs OpenAI o3New provider

Qwen3.5 9B vs Llama 4 MaverickNew provider