OpenAI Codex Mini vs OpenAI o4 Mini High
Compare OpenAI Codex Mini and OpenAI o4 Mini High, both from OpenAI, context windows of 200K vs 200K, tested across 10 shared challenges. Updated April 2026.
Which is better, OpenAI Codex Mini or OpenAI o4 Mini High?
OpenAI Codex Mini and OpenAI o4 Mini High are both competitive models. OpenAI Codex Mini costs $1.5/M input tokens vs $1.1/M for OpenAI o4 Mini High. Context windows: 200K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between OpenAI Codex Mini and OpenAI o4 Mini High
OpenAI Codex Mini is made by openai while OpenAI o4 Mini High is from openai. OpenAI Codex Mini has a 200K token context window compared to OpenAI o4 Mini High's 200K. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $1.1/M for OpenAI o4 Mini High.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
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.
