GPT-4o mini vs o1
Compare GPT-4o mini and o1, both from OpenAI, context windows of 128K vs 128K, tested across 54 shared challenges. Updated April 2026.
Which is better, GPT-4o mini or o1?
GPT-4o mini and o1 are both competitive models. GPT-4o mini costs $0.15/M input tokens vs $15/M for o1. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o mini and o1
GPT-4o mini is made by openai while o1 is from openai. GPT-4o mini has a 128K token context window compared to o1's 128K. On pricing, GPT-4o mini costs $0.15/M input tokens vs $15/M for o1.
No community votes yet. On paper, o1 has the edge — bigger model tier, newer.
GPT-4o mini is 100x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4o mini uses 2.4x more headings
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.
