What is the difference between GLM 4.7 Flash and GPT-5.1?

GLM 4.7 Flash is developed by Zhipu AI while GPT-5.1 is developed by OpenAI. GLM 4.7 Flash has a 200K token context window vs GPT-5.1's 400K. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, GLM 4.7 Flash or GPT-5.1?

It depends on your use case. GLM 4.7 Flash and GPT-5.1 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 GLM 4.7 Flash cost compared to GPT-5.1?

GLM 4.7 Flash costs $0.07/M input tokens and GPT-5.1 costs $1.25/M input tokens. GLM 4.7 Flash is $1.18/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 4.7 Flash and GPT-5.1 on Rival?

This page shows a side-by-side comparison of GLM 4.7 Flash and GPT-5.1 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 4.7 Flash and GPT-5.1?

GLM 4.7 Flash is developed by Zhipu AI while GPT-5.1 is developed by OpenAI. GLM 4.7 Flash has a 200K token context window vs GPT-5.1's 400K. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, GLM 4.7 Flash or GPT-5.1?

It depends on your use case. GLM 4.7 Flash and GPT-5.1 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 GLM 4.7 Flash cost compared to GPT-5.1?

GLM 4.7 Flash costs $0.07/M input tokens and GPT-5.1 costs $1.25/M input tokens. GLM 4.7 Flash is $1.18/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 4.7 Flash and GPT-5.1 on Rival?

This page shows a side-by-side comparison of GLM 4.7 Flash and GPT-5.1 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.

GLM 4.7 Flash vs GPT-5.1: Which Is Better?

Updated Jan 2026

Our Verdict

GPT-5.1

GLM 4.7 FlashRunner-up

No community votes yet. On paper, GPT-5.1 has the edge — bigger model tier, bigger context window.

GLM 4.7 Flash is 25x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GLM 4.7 Flash

Input

$0.07

18× cheaper

Output

$0.40

25× cheaper

GPT-5.1

Input

$1.25

Output

$10.00

GLM 4.7 Flash is cheaper on both — 18× input, 25× output

Writing DNA

Style Comparison

Similarity

55%

GLM 4.7 Flash uses 4.6x more transitions

GLM 4.7 Flash

GPT-5.1

52%Vocabulary62%

15wSentence Length19w

0.33Hedging0.29

5.8Bold3.5

4.7Lists7.2

0.00Emoji0.00

0.68Headings0.61

0.13Transitions0.03

Based on 19 + 14 text responses

Research

What we learned reading every model

GLM 4.7 Flash and GPT-5.1 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

GLM 4.7 Flash vs MiniMax M3New provider

GLM 4.7 Flash vs Grok 3New provider

GLM 4.7 Flash vs Llama 4 MaverickNew provider

Updated Jan 2026

Our Verdict

GPT-5.1

GLM 4.7 FlashRunner-up

No community votes yet. On paper, GPT-5.1 has the edge — bigger model tier, bigger context window.

GLM 4.7 Flash is 25x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GLM 4.7 Flash

Input

$0.07

18× cheaper

Output

$0.40

25× cheaper

GPT-5.1

Input

$1.25

Output

$10.00

GLM 4.7 Flash is cheaper on both — 18× input, 25× output

Writing DNA

Style Comparison

Similarity

55%

GLM 4.7 Flash uses 4.6x more transitions

GLM 4.7 Flash

GPT-5.1

52%Vocabulary62%

15wSentence Length19w

0.33Hedging0.29

5.8Bold3.5

4.7Lists7.2

0.00Emoji0.00

0.68Headings0.61

0.13Transitions0.03

Based on 19 + 14 text responses

Research

What we learned reading every model

GLM 4.7 Flash and GPT-5.1 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

GLM 4.7 Flash vs MiniMax M3New provider

GLM 4.7 Flash vs Grok 3New provider

GLM 4.7 Flash vs Llama 4 MaverickNew provider