Claude Haiku 4.5 vs Grok 3
Compare Claude Haiku 4.5 by Anthropic against Grok 3 by xAI, context windows of 200K vs 128K, tested across 53 shared challenges. Updated June 2026.
Which is better, Claude Haiku 4.5 or Grok 3?
Claude Haiku 4.5 and Grok 3 are both competitive models. Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Haiku 4.5 and Grok 3
Claude Haiku 4.5 is made by anthropic while Grok 3 is from xai. Claude Haiku 4.5 has a 200K token context window compared to Grok 3's 128K.
Our Verdict
Claude Haiku 4.5
Grok 3
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
Input
—
Output
—
Writing DNA
Style Comparison
Similarity
37%
Claude Haiku 4.5 uses 5.2x more emoji
Claude Haiku 4.5
Grok 3
61%Vocabulary49%
47wSentence Length18w
0.64Hedging0.94
5.1Bold2.5
6.3Lists3.0
0.20Emoji0.04
2.46Headings0.65
0.17Transitions0.08
Based on 24 + 17 text responses
Research
What we learned reading every model
FAQ
