What is the difference between GPT-5.4 and Grok 4.20 Multi-Agent Beta?

GPT-5.4 is developed by OpenAI while Grok 4.20 Multi-Agent Beta is developed by xAI. GPT-5.4 has a 1.1M token context window vs Grok 4.20 Multi-Agent Beta's 2.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 or Grok 4.20 Multi-Agent Beta?

It depends on your use case. GPT-5.4 and Grok 4.20 Multi-Agent Beta 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 GPT-5.4 cost compared to Grok 4.20 Multi-Agent Beta?

GPT-5.4 costs $2.5/M input tokens and Grok 4.20 Multi-Agent Beta costs $2/M input tokens. Grok 4.20 Multi-Agent Beta 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 GPT-5.4 and Grok 4.20 Multi-Agent Beta on Rival?

This page shows a side-by-side comparison of GPT-5.4 and Grok 4.20 Multi-Agent Beta 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 GPT-5.4 and Grok 4.20 Multi-Agent Beta?

GPT-5.4 is developed by OpenAI while Grok 4.20 Multi-Agent Beta is developed by xAI. GPT-5.4 has a 1.1M token context window vs Grok 4.20 Multi-Agent Beta's 2.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 or Grok 4.20 Multi-Agent Beta?

It depends on your use case. GPT-5.4 and Grok 4.20 Multi-Agent Beta 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 GPT-5.4 cost compared to Grok 4.20 Multi-Agent Beta?

GPT-5.4 costs $2.5/M input tokens and Grok 4.20 Multi-Agent Beta costs $2/M input tokens. Grok 4.20 Multi-Agent Beta 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 GPT-5.4 and Grok 4.20 Multi-Agent Beta on Rival?

This page shows a side-by-side comparison of GPT-5.4 and Grok 4.20 Multi-Agent Beta 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.

GPT-5.4 vs Grok 4.20 Multi-Agent Beta: Which Is Better?

Updated Mar 2026

Our Verdict

GPT-5.4

Grok 4.20 Multi-Agent Beta

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

Too close to call

API pricing

Cost per 1M tokens

GPT-5.4

Input

$2.50

Output

$15.00

Grok 4.20 Multi-Agent Beta

Input

$2.00

1.3× cheaper

Output

$6.00

2.5× cheaper

Grok 4.20 Multi-Agent Beta is cheaper on both — 1.3× input, 2.5× output

Writing DNA

Style Comparison

Similarity

44%

GPT-5.4 uses 7.0x more headings

GPT-5.4

Grok 4.20 Multi-Agent Beta

54%Vocabulary59%

28wSentence Length16w

0.69Hedging0.41

4.1Bold2.7

8.1Lists2.4

0.00Emoji0.00

1.84Headings0.26

0.02Transitions0.02

Based on 22 + 23 text responses

Research

What we learned reading every model

GPT-5.4 and Grok 4.20 Multi-Agent Beta 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

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Claude Opus 4.1New provider

GPT-5.4 vs Llama 4 MaverickNew provider

Updated Mar 2026

Our Verdict

GPT-5.4

Grok 4.20 Multi-Agent Beta

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

Too close to call

API pricing

Cost per 1M tokens

GPT-5.4

Input

$2.50

Output

$15.00

Grok 4.20 Multi-Agent Beta

Input

$2.00

1.3× cheaper

Output

$6.00

2.5× cheaper

Grok 4.20 Multi-Agent Beta is cheaper on both — 1.3× input, 2.5× output

Writing DNA

Style Comparison

Similarity

44%

GPT-5.4 uses 7.0x more headings

GPT-5.4

Grok 4.20 Multi-Agent Beta

54%Vocabulary59%

28wSentence Length16w

0.69Hedging0.41

4.1Bold2.7

8.1Lists2.4

0.00Emoji0.00

1.84Headings0.26

0.02Transitions0.02

Based on 22 + 23 text responses

Research

What we learned reading every model

GPT-5.4 and Grok 4.20 Multi-Agent Beta 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

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Claude Opus 4.1New provider

GPT-5.4 vs Llama 4 MaverickNew provider