What is the difference between GLM 4.5 and OpenAI o4 Mini High?

GLM 4.5 is developed by Zhipu AI while OpenAI o4 Mini High is developed by OpenAI. GLM 4.5 has a 128K token context window vs OpenAI o4 Mini High's 200K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, GLM 4.5 or OpenAI o4 Mini High?

It depends on your use case. GLM 4.5 and OpenAI o4 Mini High each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does GLM 4.5 cost compared to OpenAI o4 Mini High?

GLM 4.5 costs $0.6/M input tokens and OpenAI o4 Mini High costs $1.1/M input tokens. GLM 4.5 is $0.50/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 GLM 4.5 and OpenAI o4 Mini High on Rival?

This page shows a side-by-side comparison of GLM 4.5 and OpenAI o4 Mini High 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 GLM 4.5 and OpenAI o4 Mini High?

GLM 4.5 is developed by Zhipu AI while OpenAI o4 Mini High is developed by OpenAI. GLM 4.5 has a 128K token context window vs OpenAI o4 Mini High's 200K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, GLM 4.5 or OpenAI o4 Mini High?

It depends on your use case. GLM 4.5 and OpenAI o4 Mini High each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does GLM 4.5 cost compared to OpenAI o4 Mini High?

GLM 4.5 costs $0.6/M input tokens and OpenAI o4 Mini High costs $1.1/M input tokens. GLM 4.5 is $0.50/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 GLM 4.5 and OpenAI o4 Mini High on Rival?

This page shows a side-by-side comparison of GLM 4.5 and OpenAI o4 Mini High 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.

Updated Jul 2025

GLM 4.5vsOpenAI o4 Mini High

GLM 4.5 is cheaper than OpenAI o4 Mini High at $0.6/M vs $1.1/M input tokens.

GLM 4.5 and OpenAI o4 Mini High compared across 54 shared prompts
Spec	GLM 4.5	OpenAI o4 Mini High
Input price	$0.6/M tokens	$1.1/M tokens
Output price	$2.2/M tokens	$4.4/M tokens
Context window	128K tokens	200K tokens
Released	Jul 2025	Apr 2025
SWE-bench Verified	64.2%	68.1%

Our Verdict

GLM 4.5

OpenAI o4 Mini HighRunner-up

Not enough votes to call it. On the specs, GLM 4.5 has the edge: bigger model tier, newer.

Too close to call

What do GLM 4.5 and OpenAI o4 Mini High say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GLM 4.5

Input

$0.60

1.8× cheaper

Output

$2.20

2.0× cheaper

OpenAI o4 Mini High

Input

$1.10

Output

$4.40

GLM 4.5 is cheaper on both — 1.8× input, 2.0× output

Writing DNA

Style Comparison

Similarity

44%

GLM 4.5 uses 545.8x more bold

GLM 4.5

OpenAI o4 Mini High

52%Vocabulary70%

14wSentence Length18w

0.49Hedging0.33

5.5Bold0.0

4.9Lists1.3

0.13Emoji0.02

0.68Headings0.00

0.20Transitions0.04

Based on 21 + 14 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

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GLM 4.5 vs Claude Sonnet 4New provider

GLM 4.5 vs Grok 4New provider

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GLM 4.5 vs DeepSeek V4 Flash 0731New provider

GLM 4.5 vs DeepSeek V4 ProNew provider

GLM 4.5 vs DeepSeek V4 Pro 0813New provider

Updated Jul 2025

GLM 4.5vsOpenAI o4 Mini High

GLM 4.5 is cheaper than OpenAI o4 Mini High at $0.6/M vs $1.1/M input tokens.

GLM 4.5 and OpenAI o4 Mini High compared across 54 shared prompts
Spec	GLM 4.5	OpenAI o4 Mini High
Input price	$0.6/M tokens	$1.1/M tokens
Output price	$2.2/M tokens	$4.4/M tokens
Context window	128K tokens	200K tokens
Released	Jul 2025	Apr 2025
SWE-bench Verified	64.2%	68.1%

Our Verdict

GLM 4.5

OpenAI o4 Mini HighRunner-up

Not enough votes to call it. On the specs, GLM 4.5 has the edge: bigger model tier, newer.

Too close to call

What do GLM 4.5 and OpenAI o4 Mini High say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GLM 4.5

Input

$0.60

1.8× cheaper

Output

$2.20

2.0× cheaper

OpenAI o4 Mini High

Input

$1.10

Output

$4.40

GLM 4.5 is cheaper on both — 1.8× input, 2.0× output

Writing DNA

Style Comparison

Similarity

44%

GLM 4.5 uses 545.8x more bold

GLM 4.5

OpenAI o4 Mini High

52%Vocabulary70%

14wSentence Length18w

0.49Hedging0.33

5.5Bold0.0

4.9Lists1.3

0.13Emoji0.02

0.68Headings0.00

0.20Transitions0.04

Based on 21 + 14 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GLM 4.5 vs MiniMax M3New provider

GLM 4.5 vs Ox AlphaNew provider

GLM 4.5 vs Claude Sonnet 4New provider

GLM 4.5 vs Grok 4New provider

GLM 4.5 vs DeepSeek V4 FlashNew provider

GLM 4.5 vs DeepSeek V4 Flash 0731New provider

GLM 4.5 vs DeepSeek V4 ProNew provider

GLM 4.5 vs DeepSeek V4 Pro 0813New provider