GPT-5 Nano vs GPT-4.1 Nano

Compare GPT-5 Nano and GPT-4.1 Nano, both from OpenAI, in 52 community votes, gpt-5 nano wins 55% of head-to-head duels, tested across 38 shared challenges. Updated February 2026.

In 52 community votes, GPT-5 Nano wins 55% of head-to-head duels. GPT-5 Nano leads in Reasoning, Conversation, while GPT-4.1 Nano leads in Image Generation. 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-5 Nano and GPT-4.1 Nano are tied
Conversation: GPT-5 Nano wins 100% of votes
Web Design: GPT-5 Nano and GPT-4.1 Nano are tied
FAQ