What is the difference between OpenAI Codex Mini and OpenAI: GPT-5.6 Sol?

Both are developed by OpenAI but target different use cases. OpenAI Codex Mini has a 200K token context window vs OpenAI: GPT-5.6 Sol's 1.1M. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, OpenAI Codex Mini or OpenAI: GPT-5.6 Sol?

It depends on your use case. OpenAI Codex Mini and OpenAI: GPT-5.6 Sol each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How much does OpenAI Codex Mini cost compared to OpenAI: GPT-5.6 Sol?

OpenAI Codex Mini costs $1.5/M input tokens and OpenAI: GPT-5.6 Sol costs $5/M input tokens. OpenAI Codex Mini is $3.50/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 OpenAI Codex Mini and OpenAI: GPT-5.6 Sol on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and OpenAI: GPT-5.6 Sol 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 OpenAI Codex Mini and OpenAI: GPT-5.6 Sol?

Both are developed by OpenAI but target different use cases. OpenAI Codex Mini has a 200K token context window vs OpenAI: GPT-5.6 Sol's 1.1M. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, OpenAI Codex Mini or OpenAI: GPT-5.6 Sol?

It depends on your use case. OpenAI Codex Mini and OpenAI: GPT-5.6 Sol each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How much does OpenAI Codex Mini cost compared to OpenAI: GPT-5.6 Sol?

OpenAI Codex Mini costs $1.5/M input tokens and OpenAI: GPT-5.6 Sol costs $5/M input tokens. OpenAI Codex Mini is $3.50/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 OpenAI Codex Mini and OpenAI: GPT-5.6 Sol on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and OpenAI: GPT-5.6 Sol 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.

OpenAI Codex Mini vs OpenAI: GPT-5.6 Sol: Which Is Better?

Updated Jul 2026

Our Verdict

OpenAI: GPT-5.6 Sol

OpenAI Codex MiniRunner-up

No community votes yet. On paper, OpenAI: GPT-5.6 Sol has the edge — bigger model tier, newer, bigger context window.

OpenAI Codex Mini is 5.0x cheaper per token — worth considering if cost matters.

Slight edge

API pricing

Cost per 1M tokens

OpenAI Codex Mini

Input

$1.50

3.3× cheaper

Output

$6.00

5.0× cheaper

OpenAI: GPT-5.6 Sol

Input

$5.00

Output

$30.00

OpenAI Codex Mini is cheaper on both — 3.3× input, 5.0× output

Research

What we learned reading every model

OpenAI Codex Mini and OpenAI: GPT-5.6 Sol have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

OpenAI Codex Mini vs MiniMax M3New provider

OpenAI Codex Mini vs Claude Opus 4.1New provider

OpenAI Codex Mini vs GPT-5Same lab

Updated Jul 2026

Our Verdict

OpenAI: GPT-5.6 Sol

OpenAI Codex MiniRunner-up

No community votes yet. On paper, OpenAI: GPT-5.6 Sol has the edge — bigger model tier, newer, bigger context window.

OpenAI Codex Mini is 5.0x cheaper per token — worth considering if cost matters.

Slight edge

API pricing

Cost per 1M tokens

OpenAI Codex Mini

Input

$1.50

3.3× cheaper

Output

$6.00

5.0× cheaper

OpenAI: GPT-5.6 Sol

Input

$5.00

Output

$30.00

OpenAI Codex Mini is cheaper on both — 3.3× input, 5.0× output

Research

What we learned reading every model

OpenAI Codex Mini and OpenAI: GPT-5.6 Sol have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

OpenAI Codex Mini vs MiniMax M3New provider

OpenAI Codex Mini vs Claude Opus 4.1New provider

OpenAI Codex Mini vs GPT-5Same lab