Claude 3.7 Thinking Sonnet vs xAI: Grok 4
Compare Claude 3.7 Thinking Sonnet by Anthropic against xAI: Grok 4 by xAI, in 3 community votes, claude 3.7 thinking sonnet wins 100% of head-to-head duels, context windows of 200K vs 256K, tested across 53 shared challenges. Updated June 2026.
Which is better, Claude 3.7 Thinking Sonnet or xAI: Grok 4?
Claude 3.7 Thinking Sonnet is the better choice overall, winning 100% of 3 blind community votes on Rival. Claude 3.7 Thinking Sonnet costs $6/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 3.7 Thinking Sonnet and xAI: Grok 4
Claude 3.7 Thinking Sonnet is made by anthropic while xAI: Grok 4 is from xai. Claude 3.7 Thinking Sonnet has a 200K token context window compared to xAI: Grok 4's 256K. On pricing, Claude 3.7 Thinking Sonnet costs $6/M input tokens vs $3/M for xAI: Grok 4. In community voting, In 3 community votes, Claude 3.7 Thinking Sonnet wins 100% of head-to-head duels.
In 3 community votes, Claude 3.7 Thinking Sonnet wins 100% of head-to-head duels. Claude 3.7 Thinking Sonnet leads in Web Design. Based on blind community voting from the Rival open dataset of 3+ human preference judgments for this pair.
Per 1M tokens
xAI: Grok 4 is cheaper on both — 2.0× input, 2.0× output
Pick Claude 3.7 Thinking Sonnet. In 3 blind votes, Claude 3.7 Thinking Sonnet wins 100% of the time. That's not luck.
Claude 3.7 Thinking Sonnet particularly excels in Web Design.
Style Comparison
xAI: Grok 4 uses 7.0x more emoji
