GPT-5 Mini vs GPT-5.1-Codex-Mini
Compare GPT-5 Mini and GPT-5.1-Codex-Mini, both from OpenAI, in 11 community votes, gpt-5.1-codex-mini wins 63% of head-to-head duels, tested across 55 shared challenges. Updated April 2026.
Which is better, GPT-5 Mini or GPT-5.1-Codex-Mini?
GPT-5.1-Codex-Mini is the better choice overall, winning 63% of 11 blind community votes on Rival. GPT-5 Mini costs $0.25/M input tokens vs $1.5/M for GPT-5.1-Codex-Mini. Compare their real outputs side by side below.
Key Differences Between GPT-5 Mini and GPT-5.1-Codex-Mini
GPT-5 Mini is made by openai while GPT-5.1-Codex-Mini is from openai. On pricing, GPT-5 Mini costs $0.25/M input tokens vs $1.5/M for GPT-5.1-Codex-Mini. In community voting, In 11 community votes, GPT-5.1-Codex-Mini wins 63% of head-to-head duels.
In 11 community votes, GPT-5.1-Codex-Mini wins 63% of head-to-head duels. GPT-5 Mini leads in Image Generation, while GPT-5.1-Codex-Mini leads in Web Design. Based on blind community voting from the Rival open dataset of 11+ human preference judgments for this pair.
Pick GPT-5.1-Codex-Mini. In 11 blind votes, GPT-5.1-Codex-Mini wins 63% of the time. That's not luck.
Pick GPT-5 Mini for Image Generation. Pick GPT-5.1-Codex-Mini for Web Design. GPT-5 Mini is 3.0x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-5.1-Codex-Mini uses 332.9x more bold
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.
