OpenAI Codex Mini vs GPT-5 Mini
Compare OpenAI Codex Mini and GPT-5 Mini, both from OpenAI, in 5 community votes, openai codex mini wins 67% of head-to-head duels, tested across 10 shared challenges. Updated April 2026.
Which is better, OpenAI Codex Mini or GPT-5 Mini?
OpenAI Codex Mini is the better choice overall, winning 67% of 5 blind community votes on Rival. OpenAI Codex Mini costs $1.5/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.
Key Differences Between OpenAI Codex Mini and GPT-5 Mini
OpenAI Codex Mini is made by openai while GPT-5 Mini is from openai. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $0.25/M for GPT-5 Mini. In community voting, In 5 community votes, OpenAI Codex Mini wins 67% of head-to-head duels.
In 5 community votes, OpenAI Codex Mini wins 67% of head-to-head duels. Based on blind community voting from the Rival open dataset of 5+ human preference judgments for this pair.
Pick OpenAI Codex Mini. In 5 blind votes, OpenAI Codex Mini wins 67% of the time. That's not luck.
GPT-5 Mini is 3.0x cheaper per token — worth considering if cost matters.
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
