GPT-2 vs GPT-3.5 Turbo

Compare GPT-2 and GPT-3.5 Turbo, both from OpenAI, context windows of 1K vs 16K, tested across 7 shared challenges. Updated April 2026.

Which is better, GPT-2 or GPT-3.5 Turbo?

GPT-2 and GPT-3.5 Turbo are both competitive models. Context windows: 1K vs 16K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-2 and GPT-3.5 Turbo

GPT-2 is made by openai while GPT-3.5 Turbo is from openai. GPT-2 has a 1K token context window compared to GPT-3.5 Turbo's 16K.

Our Verdict
GPT-3.5 Turbo
GPT-3.5 Turbo
GPT-2
GPT-2Runner-up

No community votes yet. On paper, GPT-3.5 Turbo has the edge — newer, bigger context window.

Too close to call
Writing DNA

Style Comparison

Similarity
99%

GPT-3.5 Turbo uses 23.4x more hedging

GPT-2
GPT-3.5 Turbo
48%Vocabulary61%
36wSentence Length16w
0.00Hedging0.23
0.0Bold0.0
0.0Lists3.7
0.00Emoji0.00
0.00Headings0.00
0.00Transitions0.38
Based on 7 + 11 text responses
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GPT-2GPT-3.5 Turbo

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
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