What is the difference between Claude Haiku 4.5 and Grok 4.20 Beta?

Claude Haiku 4.5 is developed by Anthropic while Grok 4.20 Beta is developed by xAI. Claude Haiku 4.5 has a 200K token context window vs Grok 4.20 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, Claude Haiku 4.5 or Grok 4.20 Beta?

It depends on your use case. Claude Haiku 4.5 and Grok 4.20 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 Claude Haiku 4.5 cost compared to Grok 4.20 Beta?

Claude Haiku 4.5 costs $1/M input tokens and Grok 4.20 Beta costs $2/M input tokens. Claude Haiku 4.5 is $1.00/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 Claude Haiku 4.5 and Grok 4.20 Beta on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Grok 4.20 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 Claude Haiku 4.5 and Grok 4.20 Beta?

Claude Haiku 4.5 is developed by Anthropic while Grok 4.20 Beta is developed by xAI. Claude Haiku 4.5 has a 200K token context window vs Grok 4.20 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, Claude Haiku 4.5 or Grok 4.20 Beta?

It depends on your use case. Claude Haiku 4.5 and Grok 4.20 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 Claude Haiku 4.5 cost compared to Grok 4.20 Beta?

Claude Haiku 4.5 costs $1/M input tokens and Grok 4.20 Beta costs $2/M input tokens. Claude Haiku 4.5 is $1.00/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 Claude Haiku 4.5 and Grok 4.20 Beta on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Grok 4.20 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.

Claude Haiku 4.5 vs Grok 4.20 Beta: Which Is Better?

Updated Mar 2026

Our Verdict

Grok 4.20 Beta

Claude Haiku 4.5Runner-up

No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.

Slight edge

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

2.0× cheaper

Output

$5.00

1.2× cheaper

Grok 4.20 Beta

Input

$2.00

Output

$6.00

Claude Haiku 4.5 is cheaper on both — 2.0× input, 1.2× output

Writing DNA

Style Comparison

Similarity

39%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Grok 4.20 Beta

61%Vocabulary57%

47wSentence Length20w

0.64Hedging0.35

5.1Bold4.2

6.3Lists3.7

0.20Emoji0.00

2.46Headings0.62

0.17Transitions0.14

Based on 24 + 23 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Grok 4.20 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

Claude Haiku 4.5 vs MiniMax M3New provider

Claude Haiku 4.5 vs GPT-5New provider

Claude Haiku 4.5 vs Pony AlphaNew provider

Updated Mar 2026

Our Verdict

Grok 4.20 Beta

Claude Haiku 4.5Runner-up

No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.

Slight edge

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

2.0× cheaper

Output

$5.00

1.2× cheaper

Grok 4.20 Beta

Input

$2.00

Output

$6.00

Claude Haiku 4.5 is cheaper on both — 2.0× input, 1.2× output

Writing DNA

Style Comparison

Similarity

39%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Grok 4.20 Beta

61%Vocabulary57%

47wSentence Length20w

0.64Hedging0.35

5.1Bold4.2

6.3Lists3.7

0.20Emoji0.00

2.46Headings0.62

0.17Transitions0.14

Based on 24 + 23 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Grok 4.20 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

Claude Haiku 4.5 vs MiniMax M3New provider

Claude Haiku 4.5 vs GPT-5New provider

Claude Haiku 4.5 vs Pony AlphaNew provider