Claude 2 vs Claude Sonnet 4
Compare Claude 2 and Claude Sonnet 4, both from Anthropic, context windows of 100K vs 200K, tested across 5 shared challenges. Updated June 2026.
Which is better, Claude 2 or Claude Sonnet 4?
Claude 2 and Claude Sonnet 4 are both competitive models. Claude 2 costs $11.02/M input tokens vs $3/M for Claude Sonnet 4. Context windows: 100K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 2 and Claude Sonnet 4
Claude 2 is made by anthropic while Claude Sonnet 4 is from anthropic. Claude 2 has a 100K token context window compared to Claude Sonnet 4's 200K. On pricing, Claude 2 costs $11.02/M input tokens vs $3/M for Claude Sonnet 4.
No community votes yet. On paper, Claude Sonnet 4 has the edge — newer, bigger context window.
Cost per 1M tokens
Claude Sonnet 4 is cheaper on both — 3.7× input, 2.2× output
Style Comparison
Claude Sonnet 4 uses 40.1x more hedging
