Claude Sonnet 4 vs GPT-3.5 Turbo
Compare Claude Sonnet 4 by Anthropic against GPT-3.5 Turbo by OpenAI, context windows of 200K vs 16K, tested across 53 shared challenges. Updated May 2026.
Which is better, Claude Sonnet 4 or GPT-3.5 Turbo?
Claude Sonnet 4 and GPT-3.5 Turbo are both competitive models. Claude Sonnet 4 costs $3/M input tokens vs $1.5/M for GPT-3.5 Turbo. Context windows: 200K vs 16K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 4 and GPT-3.5 Turbo
Claude Sonnet 4 is made by anthropic while GPT-3.5 Turbo is from openai. Claude Sonnet 4 has a 200K token context window compared to GPT-3.5 Turbo's 16K. On pricing, Claude Sonnet 4 costs $3/M input tokens vs $1.5/M for GPT-3.5 Turbo.
Per 1M tokens
GPT-3.5 Turbo is cheaper on both — 2.0× input, 7.5× output
No community votes yet. On paper, Claude Sonnet 4 has the edge — bigger model tier, newer, bigger context window.
GPT-3.5 Turbo is 7.5x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Sonnet 4 uses 503.7x more bold
