Claude 3 Opus vs Claude 3.7 Thinking Sonnet
Compare Claude 3 Opus and Claude 3.7 Thinking Sonnet, both from Anthropic, context windows of 200K vs 200K, tested across 12 shared challenges. Updated May 2026.
Which is better, Claude 3 Opus or Claude 3.7 Thinking Sonnet?
Claude 3 Opus and Claude 3.7 Thinking Sonnet are both competitive models. Claude 3 Opus costs $15/M input tokens vs $6/M for Claude 3.7 Thinking Sonnet. Context windows: 200K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3 Opus and Claude 3.7 Thinking Sonnet
Claude 3 Opus is made by anthropic while Claude 3.7 Thinking Sonnet is from anthropic. Claude 3 Opus has a 200K token context window compared to Claude 3.7 Thinking Sonnet's 200K. On pricing, Claude 3 Opus costs $15/M input tokens vs $6/M for Claude 3.7 Thinking Sonnet.
Per 1M tokens
Claude 3.7 Thinking Sonnet is cheaper on both — 2.5× input, 2.5× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Style Comparison
Claude 3.7 Thinking Sonnet uses 223.5x more bold
