What is the difference between Claude Haiku 4.5 and Grok 3 Thinking?

Claude Haiku 4.5 is developed by Anthropic while Grok 3 Thinking is developed by xAI. Claude Haiku 4.5 has a 200K token context window vs Grok 3 Thinking's 128K. You can compare their actual outputs across 14 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or Grok 3 Thinking?

It depends on your use case. Claude Haiku 4.5 and Grok 3 Thinking each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 14 challenges so you can judge which fits your needs best.

How can I compare Claude Haiku 4.5 and Grok 3 Thinking on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Grok 3 Thinking 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 3 Thinking?

Claude Haiku 4.5 is developed by Anthropic while Grok 3 Thinking is developed by xAI. Claude Haiku 4.5 has a 200K token context window vs Grok 3 Thinking's 128K. You can compare their actual outputs across 14 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or Grok 3 Thinking?

It depends on your use case. Claude Haiku 4.5 and Grok 3 Thinking each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 14 challenges so you can judge which fits your needs best.

How can I compare Claude Haiku 4.5 and Grok 3 Thinking on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Grok 3 Thinking 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 3 Thinking: Which Is Better?

Updated Oct 2025

Our Verdict

Claude Haiku 4.5

Grok 3 Thinking

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

Claude Haiku 4.5

Input

$1.00

Output

$5.00

Grok 3 Thinking

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

39%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Grok 3 Thinking

61%Vocabulary46%

47wSentence Length19w

0.64Hedging1.11

5.1Bold3.3

6.3Lists2.6

0.20Emoji0.00

2.46Headings0.64

0.17Transitions0.25

Based on 24 + 6 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Grok 3 Thinking 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 Thinking vs MiniMax M3New provider

Claude Haiku 4.5 vs OpenAI o3New provider

Claude Haiku 4.5 vs Llama 4 MaverickNew provider

Updated Oct 2025

Our Verdict

Claude Haiku 4.5

Grok 3 Thinking

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

Claude Haiku 4.5

Input

$1.00

Output

$5.00

Grok 3 Thinking

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

39%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Grok 3 Thinking

61%Vocabulary46%

47wSentence Length19w

0.64Hedging1.11

5.1Bold3.3

6.3Lists2.6

0.20Emoji0.00

2.46Headings0.64

0.17Transitions0.25

Based on 24 + 6 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Grok 3 Thinking 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 Thinking vs MiniMax M3New provider

Claude Haiku 4.5 vs OpenAI o3New provider

Claude Haiku 4.5 vs Llama 4 MaverickNew provider