GPT-4.5 vs OpenAI o4 Mini High
Compare GPT-4.5 and OpenAI o4 Mini High, both from OpenAI, in 3 community votes, gpt-4.5 and openai o4 mini high are closely matched, context windows of 128K vs 200K, tested across 25 shared challenges. Updated April 2026.
Which is better, GPT-4.5 or OpenAI o4 Mini High?
GPT-4.5 and OpenAI o4 Mini High are closely matched based on 3 community votes. GPT-4.5 costs $75/M input tokens vs $1.1/M for OpenAI o4 Mini High. Context windows: 128K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4.5 and OpenAI o4 Mini High
GPT-4.5 is made by openai while OpenAI o4 Mini High is from openai. GPT-4.5 has a 128K token context window compared to OpenAI o4 Mini High's 200K. On pricing, GPT-4.5 costs $75/M input tokens vs $1.1/M for OpenAI o4 Mini High. In community voting, In 3 community votes, GPT-4.5 and OpenAI o4 Mini High are closely matched.
In 3 community votes, GPT-4.5 and OpenAI o4 Mini High are closely matched. Based on blind community voting from the Rival open dataset of 3+ human preference judgments for this pair.
Genuinely even. Both are strong choices.
OpenAI o4 Mini High is 34x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4.5 uses 466.6x more bold
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.
