What is the difference between GPT-5.1 Codex Max and Ox Alpha?

GPT-5.1 Codex Max is developed by OpenAI while Ox Alpha is developed by OpenRouter. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Codex Max or Ox Alpha?

It depends on your use case. GPT-5.1 Codex Max and Ox Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How can I compare GPT-5.1 Codex Max and Ox Alpha on Rival?

This page shows a side-by-side comparison of GPT-5.1 Codex Max and Ox Alpha across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

What is the difference between GPT-5.1 Codex Max and Ox Alpha?

GPT-5.1 Codex Max is developed by OpenAI while Ox Alpha is developed by OpenRouter. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Codex Max or Ox Alpha?

It depends on your use case. GPT-5.1 Codex Max and Ox Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How can I compare GPT-5.1 Codex Max and Ox Alpha on Rival?

This page shows a side-by-side comparison of GPT-5.1 Codex Max and Ox Alpha across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

GPT-5.1 Codex Max vs Ox Alpha: Which Is Better?

Updated Aug 2026

Our Verdict

GPT-5.1 Codex Max

Ox AlphaRunner-up

No community votes yet. On paper, GPT-5.1 Codex Max has the edge — bigger model tier, major provider backing.

Too close to call

What do GPT-5.1 Codex Max and Ox Alpha say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.1 Codex Max

Input

—

Output

—

Ox Alpha

Input

$0.000

Output

$0.000

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1 Codex Max vs MiniMax M3New provider

GPT-5.1 Codex Max vs Llama 4 MaverickNew provider

GPT-5.1 Codex Max vs Gemini 3.6 FlashNew provider

Updated Aug 2026

Our Verdict

GPT-5.1 Codex Max

Ox AlphaRunner-up

No community votes yet. On paper, GPT-5.1 Codex Max has the edge — bigger model tier, major provider backing.

Too close to call

What do GPT-5.1 Codex Max and Ox Alpha say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.1 Codex Max

Input

—

Output

—

Ox Alpha

Input

$0.000

Output

$0.000

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1 Codex Max vs MiniMax M3New provider

GPT-5.1 Codex Max vs Llama 4 MaverickNew provider

GPT-5.1 Codex Max vs Gemini 3.6 FlashNew provider