Claude 2 vs xAI: Grok 4 Fast (free)
Compare Claude 2 by Anthropic against xAI: Grok 4 Fast (free) by xAI, context windows of 100K vs 2.0M, tested across 5 shared challenges. Updated April 2026.
Which is better, Claude 2 or xAI: Grok 4 Fast (free)?
Claude 2 and xAI: Grok 4 Fast (free) are both competitive models. Claude 2 costs $11.02/M input tokens vs $0/M for xAI: Grok 4 Fast (free). Context windows: 100K vs 2000K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 2 and xAI: Grok 4 Fast (free)
Claude 2 is made by anthropic while xAI: Grok 4 Fast (free) is from xai. Claude 2 has a 100K token context window compared to xAI: Grok 4 Fast (free)'s 2000K. On pricing, Claude 2 costs $11.02/M input tokens vs $0/M for xAI: Grok 4 Fast (free).
No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — newer, bigger context window.
Style Comparison
xAI: Grok 4 Fast (free) uses 56.3x more hedging
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