What is the difference between Z.ai: GLM 5 and GPT-5?

Z.ai: GLM 5 is developed by Zhipu AI while GPT-5 is developed by OpenAI. Z.ai: GLM 5 has a 203K token context window vs GPT-5's 400K. 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 or GPT-5?

It depends on your use case. Z.ai: GLM 5 and GPT-5 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 cost compared to GPT-5?

Z.ai: GLM 5 costs $0.8/M input tokens and GPT-5 costs $1.25/M input tokens. Z.ai: GLM 5 is $0.45/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 GPT-5 on Rival?

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

Z.ai: GLM 5 is developed by Zhipu AI while GPT-5 is developed by OpenAI. Z.ai: GLM 5 has a 203K token context window vs GPT-5's 400K. 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 or GPT-5?

It depends on your use case. Z.ai: GLM 5 and GPT-5 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 cost compared to GPT-5?

Z.ai: GLM 5 costs $0.8/M input tokens and GPT-5 costs $1.25/M input tokens. Z.ai: GLM 5 is $0.45/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 GPT-5 on Rival?

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

Updated Feb 2026

Our Verdict

Z.ai: GLM 5

GPT-5

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Z.ai: GLM 5 is 3.9x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Z.ai: GLM 5

Input

$0.80

1.6× cheaper

Output

$2.56

3.9× cheaper

GPT-5

Input

$1.25

Output

$10.00

Z.ai: GLM 5 is cheaper on both — 1.6× input, 3.9× output

Writing DNA

Style Comparison

Similarity

46%

Z.ai: GLM 5 uses 33.6x more bold

Z.ai: GLM 5

GPT-5

54%Vocabulary65%

17wSentence Length13w

0.37Hedging0.20

6.3Bold0.2

4.7Lists4.6

0.00Emoji0.00

0.60Headings0.16

0.18Transitions0.03

Based on 22 + 16 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 Llama 4 MaverickNew provider

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

Updated Feb 2026

Our Verdict

Z.ai: GLM 5

GPT-5

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Z.ai: GLM 5 is 3.9x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Z.ai: GLM 5

Input

$0.80

1.6× cheaper

Output

$2.56

3.9× cheaper

GPT-5

Input

$1.25

Output

$10.00

Z.ai: GLM 5 is cheaper on both — 1.6× input, 3.9× output

Writing DNA

Style Comparison

Similarity

46%

Z.ai: GLM 5 uses 33.6x more bold

Z.ai: GLM 5

GPT-5

54%Vocabulary65%

17wSentence Length13w

0.37Hedging0.20

6.3Bold0.2

4.7Lists4.6

0.00Emoji0.00

0.60Headings0.16

0.18Transitions0.03

Based on 22 + 16 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 Llama 4 MaverickNew provider

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