GPT-5.1 Codex MaxvsMiniMax M1
GPT-5.1 Codex Max is the newer model, released after MiniMax M1.
| Spec | GPT-5.1 Codex Max | MiniMax M1 |
|---|---|---|
| Input price | — | $0.3/M tokens |
| Output price | — | $1.65/M tokens |
| Context window | — | 1.0M tokens |
| Weights | Closed | Open |
| Free API (OpenRouter) | No | No |
| Released | Dec 2025 | Jun 2025 |
Our Verdict
GPT-5.1 Codex Max
MiniMax M1Runner-up
Not enough votes to call it. On the specs, GPT-5.1 Codex Max has the edge: newer, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.1 Codex Max
Input
—
Output
—
MiniMax M1
Input
$0.30
Output
$1.65
Where to run it
3 hosts, cheapest first
GPT-5.1 Codex Max1 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
40%
MiniMax M1 uses 34.1x more emoji
GPT-5.1 Codex Max
MiniMax M1
60%Vocabulary54%
16wSentence Length18w
0.36Hedging0.54
2.3Bold5.7
4.2Lists3.6
0.00Emoji0.34
0.12Headings0.87
0.03Transitions0.04
Based on 13 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
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