GPT-4.1 Nano vs o3 Mini
Compare GPT-4.1 Nano and o3 Mini, both from OpenAI, context windows of 1.0M vs 64K, tested across 54 shared challenges. Updated April 2026.
Which is better, GPT-4.1 Nano or o3 Mini?
GPT-4.1 Nano and o3 Mini are both competitive models. GPT-4.1 Nano costs $0.1/M input tokens vs $1.1/M for o3 Mini. Context windows: 1048K vs 64K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4.1 Nano and o3 Mini
GPT-4.1 Nano is made by openai while o3 Mini is from openai. GPT-4.1 Nano has a 1048K token context window compared to o3 Mini's 64K. On pricing, GPT-4.1 Nano costs $0.1/M input tokens vs $1.1/M for o3 Mini.
No community votes yet. On paper, GPT-4.1 Nano has the edge — newer, bigger context window.
GPT-4.1 Nano is 11x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4.1 Nano uses 2.9x more lists
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
