What is the difference between GPT-5.1-Codex-Mini and o1?

Both are developed by OpenAI but target different use cases. GPT-5.1-Codex-Mini has a 400K token context window vs o1's 128K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1-Codex-Mini or o1?

It depends on your use case. GPT-5.1-Codex-Mini and o1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does GPT-5.1-Codex-Mini cost compared to o1?

GPT-5.1-Codex-Mini costs $1.5/M input tokens and o1 costs $15/M input tokens. GPT-5.1-Codex-Mini is $13.50/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare GPT-5.1-Codex-Mini and o1 on Rival?

This page shows a side-by-side comparison of GPT-5.1-Codex-Mini and o1 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-Mini and o1?

Both are developed by OpenAI but target different use cases. GPT-5.1-Codex-Mini has a 400K token context window vs o1's 128K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1-Codex-Mini or o1?

It depends on your use case. GPT-5.1-Codex-Mini and o1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does GPT-5.1-Codex-Mini cost compared to o1?

GPT-5.1-Codex-Mini costs $1.5/M input tokens and o1 costs $15/M input tokens. GPT-5.1-Codex-Mini is $13.50/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare GPT-5.1-Codex-Mini and o1 on Rival?

This page shows a side-by-side comparison of GPT-5.1-Codex-Mini and o1 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.