What is the difference between Z.AI: GLM 4 32B and xAI: Grok 4 Fast (free)?

Z.AI: GLM 4 32B is developed by Zhipu AI while xAI: Grok 4 Fast (free) is developed by xAI. Z.AI: GLM 4 32B has a 128K token context window vs xAI: Grok 4 Fast (free)'s 2.0M. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

Which is better, Z.AI: GLM 4 32B or xAI: Grok 4 Fast (free)?

It depends on your use case. Z.AI: GLM 4 32B and xAI: Grok 4 Fast (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

How much does Z.AI: GLM 4 32B cost compared to xAI: Grok 4 Fast (free)?

Z.AI: GLM 4 32B costs $0.1/M input tokens and xAI: Grok 4 Fast (free) costs $0/M input tokens. xAI: Grok 4 Fast (free) is $0.10/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 4 32B and xAI: Grok 4 Fast (free) on Rival?

This page shows a side-by-side comparison of Z.AI: GLM 4 32B and xAI: Grok 4 Fast (free) 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 4 32B and xAI: Grok 4 Fast (free)?

Z.AI: GLM 4 32B is developed by Zhipu AI while xAI: Grok 4 Fast (free) is developed by xAI. Z.AI: GLM 4 32B has a 128K token context window vs xAI: Grok 4 Fast (free)'s 2.0M. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

Which is better, Z.AI: GLM 4 32B or xAI: Grok 4 Fast (free)?

It depends on your use case. Z.AI: GLM 4 32B and xAI: Grok 4 Fast (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

How much does Z.AI: GLM 4 32B cost compared to xAI: Grok 4 Fast (free)?

Z.AI: GLM 4 32B costs $0.1/M input tokens and xAI: Grok 4 Fast (free) costs $0/M input tokens. xAI: Grok 4 Fast (free) is $0.10/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 4 32B and xAI: Grok 4 Fast (free) on Rival?

This page shows a side-by-side comparison of Z.AI: GLM 4 32B and xAI: Grok 4 Fast (free) 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 4 32B vs xAI: Grok 4 Fast (free): Which Is Better?

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Z.AI: GLM 4 32BRunner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Z.AI: GLM 4 32B

Input

$0.10

Output

$0.10

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

39%

xAI: Grok 4 Fast (free) uses 6.7x more transitions

Z.AI: GLM 4 32B

xAI: Grok 4 Fast (free)

53%Vocabulary65%

15wSentence Length13w

0.83Hedging0.56

5.8Bold1.4

4.6Lists2.5

0.00Emoji0.00

0.35Headings1.58

0.04Transitions0.28

Based on 17 + 14 text responses

Research

What we learned reading every model

Z.AI: GLM 4 32B and xAI: Grok 4 Fast (free) 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

Z.AI: GLM 4 32B vs MiniMax M3New provider

Z.AI: GLM 4 32B vs Claude Sonnet 4New provider

Z.AI: GLM 4 32B vs xAI: Grok 4Cross-provider

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Z.AI: GLM 4 32BRunner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Z.AI: GLM 4 32B

Input

$0.10

Output

$0.10

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

39%

xAI: Grok 4 Fast (free) uses 6.7x more transitions

Z.AI: GLM 4 32B

xAI: Grok 4 Fast (free)

53%Vocabulary65%

15wSentence Length13w

0.83Hedging0.56

5.8Bold1.4

4.6Lists2.5

0.00Emoji0.00

0.35Headings1.58

0.04Transitions0.28

Based on 17 + 14 text responses

Research

What we learned reading every model

Z.AI: GLM 4 32B and xAI: Grok 4 Fast (free) 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

Z.AI: GLM 4 32B vs MiniMax M3New provider

Z.AI: GLM 4 32B vs Claude Sonnet 4New provider

Z.AI: GLM 4 32B vs xAI: Grok 4Cross-provider