OpenAI Codex Mini vs MiniMax M3
Compare OpenAI Codex Mini by OpenAI against MiniMax M3 by MiniMax, context windows of 200K vs 1.0M, tested across 10 shared challenges.
Our Verdict
MiniMax M3
OpenAI Codex MiniRunner-up
No community votes yet. On paper, MiniMax M3 has the edge — bigger model tier, newer, bigger context window.
MiniMax M3 is 5.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
OpenAI Codex Mini
Input
$1.50
Output
$6.00
MiniMax M3
Input
$0.30
5.0× cheaper
Output
$1.20
5.0× cheaper
MiniMax M3 is cheaper on both — 5.0× input, 5.0× output
Research
What we learned reading every model
FAQ
