GPT-3.5 Turbo vs GPT-4

Compare GPT-3.5 Turbo and GPT-4, both from OpenAI, context windows of 16K vs 8K, tested across 10 shared challenges. Updated April 2026.

Which is better, GPT-3.5 Turbo or GPT-4?

GPT-3.5 Turbo and GPT-4 are both competitive models. GPT-3.5 Turbo costs $1.5/M input tokens vs $30/M for GPT-4. Context windows: 16K vs 8K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-3.5 Turbo and GPT-4

GPT-3.5 Turbo is made by openai while GPT-4 is from openai. GPT-3.5 Turbo has a 16K token context window compared to GPT-4's 8K. On pricing, GPT-3.5 Turbo costs $1.5/M input tokens vs $30/M for GPT-4.

Our Verdict
GPT-4
GPT-4
GPT-3.5 Turbo
GPT-3.5 TurboRunner-up

No community votes yet. On paper, GPT-4 has the edge — bigger model tier, newer.

GPT-3.5 Turbo is 30x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
95%

GPT-4 uses 82.3x more bold

GPT-3.5 Turbo
GPT-4
61%Vocabulary59%
16wSentence Length18w
0.23Hedging1.10
0.0Bold0.8
3.7Lists2.5
0.00Emoji0.00
0.00Headings0.00
0.38Transitions0.45
Based on 11 + 15 text responses
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GPT-3.5 TurboGPT-4

279 AI models invented the same fake scientist.

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