GPT-4.1 Nano
Nothing here. The model returned empty. We stared at it for a while.
GPT-4.1 Nano vs GPT-5
Compare GPT-4.1 Nano and GPT-5, both from OpenAI, context windows of 1.0M vs 400K, tested across 40 shared challenges. Updated April 2026.
Which is better, GPT-4.1 Nano or GPT-5?
GPT-4.1 Nano and GPT-5 are both competitive models. GPT-4.1 Nano costs $0.1/M input tokens vs $1.25/M for GPT-5. Context windows: 1048K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4.1 Nano and GPT-5
GPT-4.1 Nano is made by openai while GPT-5 is from openai. GPT-4.1 Nano has a 1048K token context window compared to GPT-5's 400K. On pricing, GPT-4.1 Nano costs $0.1/M input tokens vs $1.25/M for GPT-5.
Our Verdict
GPT-5
GPT-4.1 NanoRunner-up
No community votes yet. On paper, GPT-5 has the edge — bigger model tier, newer.
GPT-4.1 Nano is 25x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
92%
GPT-4.1 Nano uses 29.8x more bold
GPT-4.1 Nano
GPT-5
57%Vocabulary65%
25wSentence Length13w
0.72Hedging0.20
5.6Bold0.2
4.9Lists4.6
0.00Emoji0.00
0.71Headings0.16
0.22Transitions0.03
Based on 24 + 16 text responses
vsAsk them anything yourself
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
FAQ