What is the difference between Grok 3 Beta and Grok 4.20 Multi-Agent Beta?

Both are developed by xAI but target different use cases. Grok 3 Beta has a 131K 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, Grok 3 Beta or Grok 4.20 Multi-Agent Beta?

It depends on your use case. Grok 3 Beta 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 Grok 3 Beta cost compared to Grok 4.20 Multi-Agent Beta?

Grok 3 Beta costs $2/M input tokens and Grok 4.20 Multi-Agent Beta costs $2/M input tokens. Grok 4.20 Multi-Agent Beta is $0.00/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 Grok 3 Beta and Grok 4.20 Multi-Agent Beta on Rival?

This page shows a side-by-side comparison of Grok 3 Beta 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 Grok 3 Beta and Grok 4.20 Multi-Agent Beta?

Both are developed by xAI but target different use cases. Grok 3 Beta has a 131K 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, Grok 3 Beta or Grok 4.20 Multi-Agent Beta?

It depends on your use case. Grok 3 Beta 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 Grok 3 Beta cost compared to Grok 4.20 Multi-Agent Beta?

Grok 3 Beta costs $2/M input tokens and Grok 4.20 Multi-Agent Beta costs $2/M input tokens. Grok 4.20 Multi-Agent Beta is $0.00/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 Grok 3 Beta and Grok 4.20 Multi-Agent Beta on Rival?

This page shows a side-by-side comparison of Grok 3 Beta 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.

Grok 3 Beta vs Grok 4.20 Multi-Agent Beta: Which Is Better?

Updated Mar 2026

Our Verdict

Grok 4.20 Multi-Agent Beta

Grok 3 BetaRunner-up

No community votes yet. On paper, Grok 4.20 Multi-Agent Beta has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Grok 3 Beta

Input

$2.00

Output

$4.00

1.5× cheaper

Grok 4.20 Multi-Agent Beta

Input

$2.00

Output

$6.00

Writing DNA

Style Comparison

Similarity

52%

Grok 3 Beta uses 11.4x more transitions

Grok 3 Beta

Grok 4.20 Multi-Agent Beta

48%Vocabulary59%

19wSentence Length16w

0.67Hedging0.41

3.1Bold2.7

5.5Lists2.4

0.00Emoji0.00

0.52Headings0.26

0.28Transitions0.02

Based on 23 + 23 text responses

Research

What we learned reading every model

Grok 3 Beta 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

Grok 3 Beta vs MiniMax M3New provider

Grok 3 Beta vs GPT-5New provider

Grok 3 Beta vs Claude Opus 4.1New provider

Updated Mar 2026

Our Verdict

Grok 4.20 Multi-Agent Beta

Grok 3 BetaRunner-up

No community votes yet. On paper, Grok 4.20 Multi-Agent Beta has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Grok 3 Beta

Input

$2.00

Output

$4.00

1.5× cheaper

Grok 4.20 Multi-Agent Beta

Input

$2.00

Output

$6.00

Writing DNA

Style Comparison

Similarity

52%

Grok 3 Beta uses 11.4x more transitions

Grok 3 Beta

Grok 4.20 Multi-Agent Beta

48%Vocabulary59%

19wSentence Length16w

0.67Hedging0.41

3.1Bold2.7

5.5Lists2.4

0.00Emoji0.00

0.52Headings0.26

0.28Transitions0.02

Based on 23 + 23 text responses

Research

What we learned reading every model

Grok 3 Beta 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

Grok 3 Beta vs MiniMax M3New provider

Grok 3 Beta vs GPT-5New provider

Grok 3 Beta vs Claude Opus 4.1New provider