GPT-5 Codex vs GPT-5 Mini

Compare GPT-5 Codex and GPT-5 Mini, both from OpenAI, in 13 community votes, gpt-5 codex wins 90% of head-to-head duels, tested across 45 shared challenges. Updated February 2026.

In 13 community votes, GPT-5 Codex wins 90% of head-to-head duels. GPT-5 Codex leads in Web Design. Based on blind community voting from the RIVAL open dataset of 13+ human preference judgments for this pair.