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

Claude Haiku 4.5 is developed by Anthropic while Grok 3 is developed by xAI. Claude Haiku 4.5 has a 200K token context window vs Grok 3's 128K. 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 3?

It depends on your use case. Claude Haiku 4.5 and Grok 3 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 can I compare Claude Haiku 4.5 and Grok 3 on Rival?

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

Updated Oct 2025

Claude Haiku 4.5vsGrok 3

Claude Haiku 4.5 has a larger context window than Grok 3 (200K tokens vs 128K tokens).

Claude Haiku 4.5 and Grok 3 compared across 53 shared prompts
Spec	Claude Haiku 4.5	Grok 3
Input price	$1/M tokens	—
Output price	$5/M tokens	—
Context window	200K tokens	128K tokens
Weights	Closed	—
Free API (OpenRouter)	No	No
Released	Oct 2025	Feb 2025
SWE-bench Verified	73.3%	63.8%