GPT-5 CodexvsMiniMax M3
MiniMax M3 is the newer model, released after GPT-5 Codex.
| Spec | GPT-5 Codex | MiniMax M3 |
|---|---|---|
| Input price | — | $0.3/M tokens |
| Output price | — | $1.2/M tokens |
| Context window | — | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Sep 2025 | Jun 2026 |
Our Verdict
GPT-5 Codex
MiniMax M3Runner-up
Not enough votes to call it. On the specs, GPT-5 Codex has the edge: bigger model tier, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
GPT-5 Codex
Input
—
Output
—
MiniMax M3
Input
$0.30
Output
$1.20
Where to run it
12 hosts, cheapest first
GPT-5 Codex
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
56%
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
Research
What we learned reading every model
FAQ
Common questions
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