Claude Sonnet 3.6 (2022-10-22) vs Claude Opus 4
Compare Claude Sonnet 3.6 (2022-10-22) and Claude Opus 4, both from Anthropic, context windows of 200K vs 200K, tested across 53 shared challenges. Updated May 2026.
Which is better, Claude Sonnet 3.6 (2022-10-22) or Claude Opus 4?
Claude Sonnet 3.6 (2022-10-22) and Claude Opus 4 are both competitive models. Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens vs $15/M for Claude Opus 4. Context windows: 200K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 3.6 (2022-10-22) and Claude Opus 4
Claude Sonnet 3.6 (2022-10-22) is made by anthropic while Claude Opus 4 is from anthropic. Claude Sonnet 3.6 (2022-10-22) has a 200K token context window compared to Claude Opus 4's 200K. On pricing, Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens vs $15/M for Claude Opus 4.
Per 1M tokens
Claude Sonnet 3.6 (2022-10-22) is cheaper on both — 5.0× input, 5.0× output
No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, newer.
Claude Sonnet 3.6 (2022-10-22) is 5.0x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4 uses 11.2x more emoji
