GPT-5.2
Nothing here. The model returned empty. We stared at it for a while.
GPT-5.2 vs o3 Mini
Compare GPT-5.2 and o3 Mini, both from OpenAI, context windows of 400K vs 64K, tested across 53 shared challenges. Updated April 2026.
Which is better, GPT-5.2 or o3 Mini?
GPT-5.2 and o3 Mini are both competitive models. GPT-5.2 costs $1.75/M input tokens vs $1.1/M for o3 Mini. Context windows: 400K vs 64K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5.2 and o3 Mini
GPT-5.2 is made by openai while o3 Mini is from openai. GPT-5.2 has a 400K token context window compared to o3 Mini's 64K. On pricing, GPT-5.2 costs $1.75/M input tokens vs $1.1/M for o3 Mini.
Our Verdict
GPT-5.2
o3 MiniRunner-up
No community votes yet. On paper, GPT-5.2 has the edge — bigger model tier, newer, bigger context window.
o3 Mini is 3.2x cheaper per token — worth considering if cost matters.
Slight edge
Writing DNA
Style Comparison
Similarity
92%
GPT-5.2 uses 5.8x more emoji
GPT-5.2
o3 Mini
64%Vocabulary65%
16wSentence Length17w
0.34Hedging0.74
9.4Bold3.9
3.9Lists1.7
0.06Emoji0.00
0.89Headings0.47
0.31Transitions0.38
Based on 15 + 12 text responses
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
Model Similarity Index
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
Devstral M / S
95.7%
Qwen3 Coder / Flash
95.6%
GPT-5.4 / Mini
93.3%
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
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