GPT-4.1 Nano
Nothing here. The model returned empty. We stared at it for a while.
GPT-4.1 Nano vs GPT-5 Nano
Compare GPT-4.1 Nano and GPT-5 Nano, both from OpenAI, in 52 community votes, gpt-5 nano wins 55% of head-to-head duels, tested across 38 shared challenges. Updated April 2026.
Which is better, GPT-4.1 Nano or GPT-5 Nano?
GPT-5 Nano is the better choice overall, winning 55% of 52 blind community votes on Rival. Compare their real outputs side by side below.
Key Differences Between GPT-4.1 Nano and GPT-5 Nano
GPT-4.1 Nano is made by openai while GPT-5 Nano is from openai. In community voting, In 52 community votes, GPT-5 Nano wins 55% of head-to-head duels.
In 52 community votes, GPT-5 Nano wins 55% of head-to-head duels. GPT-4.1 Nano leads in Image Generation, while GPT-5 Nano leads in Reasoning, Conversation. Based on blind community voting from the Rival open dataset of 52+ human preference judgments for this pair.
Reasoning: GPT-5 Nano wins 75% of votes
Image Generation: GPT-4.1 Nano wins 92% of votes
Analysis: GPT-4.1 Nano and GPT-5 Nano are tied
Conversation: GPT-5 Nano wins 100% of votes
Web Design: GPT-4.1 Nano and GPT-5 Nano are tied
Our Verdict
GPT-5 NanoWinner
GPT-4.1 NanoRunner-up
GPT-5 Nano has the edge overall. In 52 blind votes, GPT-5 Nano wins 55% of the time.
Pick GPT-4.1 Nano for Image Generation. Pick GPT-5 Nano for Conversation, Reasoning.
Slight edge
Writing DNA
Style Comparison
Similarity
100%
GPT-4.1 Nano uses 561.5x more bold
GPT-4.1 Nano
GPT-5 Nano
57%Vocabulary59%
25wSentence Length25w
0.72Hedging0.23
5.6Bold0.0
4.9Lists4.2
0.00Emoji0.00
0.71Headings0.00
0.22Transitions0.01
Based on 24 + 14 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.
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