Claude Sonnet 3.6 (2022-10-22) vs Claude Sonnet 4

Compare Claude Sonnet 3.6 (2022-10-22) and Claude Sonnet 4, both from Anthropic, context windows of 200K vs 200K, tested across 34 shared challenges. Updated April 2026.

Which is better, Claude Sonnet 3.6 (2022-10-22) or Claude Sonnet 4?

Claude Sonnet 3.6 (2022-10-22) and Claude Sonnet 4 are both competitive models. Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens vs $3/M for Claude Sonnet 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 Sonnet 4

Claude Sonnet 3.6 (2022-10-22) is made by anthropic while Claude Sonnet 4 is from anthropic. Claude Sonnet 3.6 (2022-10-22) has a 200K token context window compared to Claude Sonnet 4's 200K. On pricing, Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens vs $3/M for Claude Sonnet 4.

Our Verdict
Claude Sonnet 3.6 (2022-10-22)
Claude Sonnet 3.6 (2022-10-22)
Claude Sonnet 4
Claude Sonnet 4

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

Claude Sonnet 4 uses 87.9x more emoji

Claude Sonnet 3.6 (2022-10-22)
Claude Sonnet 4
66%Vocabulary62%
74wSentence Length111w
0.72Hedging0.40
0.3Bold5.0
8.9Lists9.3
0.00Emoji0.88
0.06Headings2.16
0.09Transitions0.33
Based on 21 + 17 text responses
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Claude Sonnet 3.6 (2022-10-22)Claude Sonnet 4

279 AI models invented the same fake scientist.

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