Claude Haiku 4.5 vs xAI: Grok 4
Compare Claude Haiku 4.5 by Anthropic against xAI: Grok 4 by xAI, context windows of 200K vs 256K, tested across 53 shared challenges. Updated June 2026.
Which is better, Claude Haiku 4.5 or xAI: Grok 4?
Claude Haiku 4.5 and xAI: Grok 4 are both competitive models. Claude Haiku 4.5 costs $1/M input tokens vs $3/M for xAI: Grok 4. Context windows: 200K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Haiku 4.5 and xAI: Grok 4
Claude Haiku 4.5 is made by anthropic while xAI: Grok 4 is from xai. Claude Haiku 4.5 has a 200K token context window compared to xAI: Grok 4's 256K. On pricing, Claude Haiku 4.5 costs $1/M input tokens vs $3/M for xAI: Grok 4.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Claude Haiku 4.5 is 3.0x cheaper per token — worth considering if cost matters.
Cost per 1M tokens
Claude Haiku 4.5 is cheaper on both — 3.0× input, 3.0× output
Style Comparison
Claude Haiku 4.5 uses 3.9x more transitions
