---
title: "GPT-5.1 family — distinct SKUs · Undominated.ai"
canonical: https://undominated.ai/families/gpt-5-1/
description: "GPT-5.1 is the general row and has an LMArena score. Codex, Codex Mini, and Codex Max are different SKUs. Unrated stays unrated. Prices are the API rows in this catalogue, not a ChatGPT subscription."
---

# GPT-5.1 family — distinct SKUs · Undominated.ai

> GPT-5.1 is the general row and has an LMArena score. Codex, Codex Mini, and Codex Max are different SKUs. Unrated stays unrated. Prices are the API rows in this catalogue, not a ChatGPT subscription.

OpenAI

# GPT-5.1 family

GPT-5.1 is the general row and has an LMArena score. Codex, Codex Mini, and Codex Max are different SKUs. Unrated stays unrated. Prices are the API rows in this catalogue, not a ChatGPT subscription.

People searched gpt 5.1 cost, gpt-5.1 codex max.

## Standard rows

| Model | LMArena | In / out | |
| --- | --- | --- | --- |
| GPT-5.1 | 1441.4 | $1.25 / $10.00 | Check |
| GPT-5.1-Codex | unrated | $1.25 / $10.00 | Check |
| GPT-5.1-Codex-Mini | unrated | $0.250 / $2.00 | Check |
| GPT-5.1-Codex-Max | unrated | $1.25 / $10.00 | Check |

## Questions this page answers

### Are GPT-5.1 family SKUs interchangeable?

GPT-5.1 is the general row and has an LMArena score. Codex, Codex Mini, and Codex Max are different SKUs. Unrated stays unrated. Prices are the API rows in this catalogue, not a ChatGPT subscription.

### Which OpenAI rows are in this catalogue?

4 published standard rows are listed below. 1 have an LMArena score. Unrated stays unrated.