What is the difference between Z.ai: GLM 5.1 and Qwen3.5 9B?

Z.ai: GLM 5.1 is developed by Z-ai while Qwen3.5 9B is developed by Qwen. Z.ai: GLM 5.1 has a 203K token context window vs Qwen3.5 9B's 262K. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, Z.ai: GLM 5.1 or Qwen3.5 9B?

It depends on your use case. Z.ai: GLM 5.1 and Qwen3.5 9B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does Z.ai: GLM 5.1 cost compared to Qwen3.5 9B?

Z.ai: GLM 5.1 costs $1.4/M input tokens and Qwen3.5 9B costs $0.1/M input tokens. Qwen3.5 9B is $1.30/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Z.ai: GLM 5.1 and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of Z.ai: GLM 5.1 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 Z.ai: GLM 5.1 and Qwen3.5 9B?

Z.ai: GLM 5.1 is developed by Z-ai while Qwen3.5 9B is developed by Qwen. Z.ai: GLM 5.1 has a 203K token context window vs Qwen3.5 9B's 262K. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, Z.ai: GLM 5.1 or Qwen3.5 9B?

It depends on your use case. Z.ai: GLM 5.1 and Qwen3.5 9B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does Z.ai: GLM 5.1 cost compared to Qwen3.5 9B?

Z.ai: GLM 5.1 costs $1.4/M input tokens and Qwen3.5 9B costs $0.1/M input tokens. Qwen3.5 9B is $1.30/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Z.ai: GLM 5.1 and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of Z.ai: GLM 5.1 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.

Z.ai: GLM 5.1 vs Qwen3.5 9B: Which Is Better?

Updated Apr 2026

Our Verdict

Z.ai: GLM 5.1

Qwen3.5 9BRunner-up

No community votes yet. On paper, Z.ai: GLM 5.1 has the edge — bigger model tier.

Qwen3.5 9B is 29x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Z.ai: GLM 5.1

Input

$1.40

Output

$4.40

Qwen3.5 9B

Input

$0.10

14× cheaper

Output

$0.15

29× cheaper

Qwen3.5 9B is cheaper on both — 14× input, 29× output

Writing DNA

Style Comparison

Similarity

65%

Qwen3.5 9B uses 2.1x more headings

Z.ai: GLM 5.1

Qwen3.5 9B

54%Vocabulary47%

18wSentence Length15w

0.31Hedging0.41

3.6Bold6.9

2.6Lists4.8

0.00Emoji0.00

0.43Headings0.91

0.11Transitions0.12

Based on 27 + 21 text responses

Research

What we learned reading every model

Z.ai: GLM 5.1 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 Claude Sonnet 4New provider

Qwen3.5 9B vs GPT-5New provider

Updated Apr 2026

Our Verdict

Z.ai: GLM 5.1

Qwen3.5 9BRunner-up

No community votes yet. On paper, Z.ai: GLM 5.1 has the edge — bigger model tier.

Qwen3.5 9B is 29x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Z.ai: GLM 5.1

Input

$1.40

Output

$4.40

Qwen3.5 9B

Input

$0.10

14× cheaper

Output

$0.15

29× cheaper

Qwen3.5 9B is cheaper on both — 14× input, 29× output

Writing DNA

Style Comparison

Similarity

65%

Qwen3.5 9B uses 2.1x more headings

Z.ai: GLM 5.1

Qwen3.5 9B

54%Vocabulary47%

18wSentence Length15w

0.31Hedging0.41

3.6Bold6.9

2.6Lists4.8

0.00Emoji0.00

0.43Headings0.91

0.11Transitions0.12

Based on 27 + 21 text responses

Research

What we learned reading every model

Z.ai: GLM 5.1 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 Claude Sonnet 4New provider

Qwen3.5 9B vs GPT-5New provider