Claude Opus 4 vs GPT-3.5 Turbo
Compare Claude Opus 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 Opus 4 or GPT-3.5 Turbo?
Claude Opus 4 and GPT-3.5 Turbo are both competitive models. Claude Opus 4 costs $15/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 Opus 4 and GPT-3.5 Turbo
Claude Opus 4 is made by anthropic while GPT-3.5 Turbo is from openai. Claude Opus 4 has a 200K token context window compared to GPT-3.5 Turbo's 16K. On pricing, Claude Opus 4 costs $15/M input tokens vs $1.5/M for GPT-3.5 Turbo.
Per 1M tokens
GPT-3.5 Turbo is cheaper on both — 10× input, 38× output
No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, newer, bigger context window.
GPT-3.5 Turbo is 38x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4 uses 444.0x more bold
