GPT-5 Codex vs MiniMax M3
Compare GPT-5 Codex by OpenAI against MiniMax M3 by MiniMax, tested across 48 shared challenges. Updated June 2026.
Which is better, GPT-5 Codex or MiniMax M3?
GPT-5 Codex and MiniMax M3 are both competitive models. Compare their real outputs side by side below.
Key Differences Between GPT-5 Codex and MiniMax M3
GPT-5 Codex is made by openai while MiniMax M3 is from minimax.
API pricing
Per 1M tokens
GPT-5 Codex
Input
—
Output
—
MiniMax M3
Input
$0.30
Output
$1.20
Our Verdict
GPT-5 Codex
MiniMax M3Runner-up
No community votes yet. On paper, GPT-5 Codex has the edge — bigger model tier, major provider backing.
Too close to call
Writing DNA
Style Comparison
Similarity
57%
MiniMax M3 uses 7.9x more emoji
GPT-5 Codex
MiniMax M3
64%Vocabulary55%
17wSentence Length24w
0.38Hedging0.52
2.3Bold5.2
3.5Lists3.0
0.15Emoji1.15
0.49Headings1.21
0.05Transitions0.02
Based on 13 + 27 text responses
FAQ
