What is the difference between Z.ai: GLM 5 and OpenAI o4-mini?

Z.ai: GLM 5 is developed by Zhipu AI while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Z.ai: GLM 5 or OpenAI o4-mini?

It depends on your use case. Z.ai: GLM 5 and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Z.ai: GLM 5 cost compared to OpenAI o4-mini?

Z.ai: GLM 5 costs $0.8/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. Z.ai: GLM 5 is $0.30/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 and OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of Z.ai: GLM 5 and OpenAI o4-mini 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 and OpenAI o4-mini?

Z.ai: GLM 5 is developed by Zhipu AI while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Z.ai: GLM 5 or OpenAI o4-mini?

It depends on your use case. Z.ai: GLM 5 and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Z.ai: GLM 5 cost compared to OpenAI o4-mini?

Z.ai: GLM 5 costs $0.8/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. Z.ai: GLM 5 is $0.30/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 and OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of Z.ai: GLM 5 and OpenAI o4-mini 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 vs OpenAI o4-mini: Which Is Better?

Rival

Updated Feb 2026

Our Verdict

Z.ai: GLM 5

OpenAI o4-miniRunner-up

No community votes yet. On paper, Z.ai: GLM 5 has the edge — bigger model tier, newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Z.ai: GLM 5

Input

$0.80

1.4× cheaper

Output

$2.56

1.7× cheaper

OpenAI o4-mini

Input

$1.10

Output

$4.40

Z.ai: GLM 5 is cheaper on both — 1.4× input, 1.7× output

Writing DNA

Style Comparison

Similarity

40%

Z.ai: GLM 5 uses 633.6x more bold

Z.ai: GLM 5

OpenAI o4-mini

54%Vocabulary73%

17wSentence Length15w

0.37Hedging0.18

6.3Bold0.0

4.7Lists2.1

0.00Emoji0.00

0.60Headings0.00

0.18Transitions0.02

Based on 22 + 10 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Z.ai: GLM 5 vs MiniMax M3New provider

Z.ai: GLM 5 vs Claude Opus 4New provider

Z.ai: GLM 5 vs Gemini 2.5 Pro Preview 06-05New provider

Rival

Updated Feb 2026

Our Verdict

Z.ai: GLM 5

OpenAI o4-miniRunner-up

No community votes yet. On paper, Z.ai: GLM 5 has the edge — bigger model tier, newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Z.ai: GLM 5

Input

$0.80

1.4× cheaper

Output

$2.56

1.7× cheaper

OpenAI o4-mini

Input

$1.10

Output

$4.40

Z.ai: GLM 5 is cheaper on both — 1.4× input, 1.7× output

Writing DNA

Style Comparison

Similarity

40%

Z.ai: GLM 5 uses 633.6x more bold

Z.ai: GLM 5

OpenAI o4-mini

54%Vocabulary73%

17wSentence Length15w

0.37Hedging0.18

6.3Bold0.0

4.7Lists2.1

0.00Emoji0.00

0.60Headings0.00

0.18Transitions0.02

Based on 22 + 10 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Z.ai: GLM 5 vs MiniMax M3New provider

Z.ai: GLM 5 vs Claude Opus 4New provider

Z.ai: GLM 5 vs Gemini 2.5 Pro Preview 06-05New provider

Rival