What is the difference between Claude 3 Opus and Z.AI: GLM 4.5?

Claude 3 Opus is developed by Anthropic while Z.AI: GLM 4.5 is developed by Zhipu AI. Claude 3 Opus has a 200K token context window vs Z.AI: GLM 4.5's 128K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Z.AI: GLM 4.5?

It depends on your use case. Claude 3 Opus and Z.AI: GLM 4.5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to Z.AI: GLM 4.5?

Claude 3 Opus costs $15/M input tokens and Z.AI: GLM 4.5 costs $0.6/M input tokens. Z.AI: GLM 4.5 is $14.40/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 Claude 3 Opus and Z.AI: GLM 4.5 on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Z.AI: GLM 4.5 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 Claude 3 Opus and Z.AI: GLM 4.5?

Claude 3 Opus is developed by Anthropic while Z.AI: GLM 4.5 is developed by Zhipu AI. Claude 3 Opus has a 200K token context window vs Z.AI: GLM 4.5's 128K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Z.AI: GLM 4.5?

It depends on your use case. Claude 3 Opus and Z.AI: GLM 4.5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to Z.AI: GLM 4.5?

Claude 3 Opus costs $15/M input tokens and Z.AI: GLM 4.5 costs $0.6/M input tokens. Z.AI: GLM 4.5 is $14.40/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 Claude 3 Opus and Z.AI: GLM 4.5 on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Z.AI: GLM 4.5 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.

Claude 3 Opus vs Z.AI: GLM 4.5: Which Is Better?

Updated Jul 2025

Our Verdict

Claude 3 Opus

Z.AI: GLM 4.5Runner-up

No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window.

Z.AI: GLM 4.5 is 34x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3 Opus

Input

$15.00

Output

$75.00

Z.AI: GLM 4.5

Input

$0.60

25× cheaper

Output

$2.20

34× cheaper

Z.AI: GLM 4.5 is cheaper on both — 25× input, 34× output

Writing DNA

Style Comparison

Similarity

27%

Z.AI: GLM 4.5 uses 545.8x more bold

Claude 3 Opus

Z.AI: GLM 4.5

54%Vocabulary52%

14wSentence Length14w

0.48Hedging0.49

0.0Bold5.5

3.0Lists4.9

0.00Emoji0.13

0.00Headings0.68

0.06Transitions0.20

Based on 3 + 21 text responses

Research

What we learned reading every model

Claude 3 Opus and Z.AI: GLM 4.5 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

Claude 3 Opus vs MiniMax M3New provider

Z.AI: GLM 4.5 vs Llama 4 MaverickNew provider

Z.AI: GLM 4.5 vs GPT-5New provider

Updated Jul 2025

Our Verdict

Claude 3 Opus

Z.AI: GLM 4.5Runner-up

No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window.

Z.AI: GLM 4.5 is 34x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3 Opus

Input

$15.00

Output

$75.00

Z.AI: GLM 4.5

Input

$0.60

25× cheaper

Output

$2.20

34× cheaper

Z.AI: GLM 4.5 is cheaper on both — 25× input, 34× output

Writing DNA

Style Comparison

Similarity

27%

Z.AI: GLM 4.5 uses 545.8x more bold

Claude 3 Opus

Z.AI: GLM 4.5

54%Vocabulary52%

14wSentence Length14w

0.48Hedging0.49

0.0Bold5.5

3.0Lists4.9

0.00Emoji0.13

0.00Headings0.68

0.06Transitions0.20

Based on 3 + 21 text responses

Research

What we learned reading every model

Claude 3 Opus and Z.AI: GLM 4.5 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

Claude 3 Opus vs MiniMax M3New provider

Z.AI: GLM 4.5 vs Llama 4 MaverickNew provider

Z.AI: GLM 4.5 vs GPT-5New provider