Compare OpenAI Codex Mini and GPT-4.1 Nano, both from OpenAI, in 10 community votes, openai codex mini wins 57% of head-to-head duels, context windows of 200K vs 1.0M, tested across 10 shared challenges. Updated April 2026.
OpenAI Codex Mini is the better choice overall, winning 57% of 10 blind community votes on Rival. OpenAI Codex Mini costs $1.5/M input tokens vs $0.1/M for GPT-4.1 Nano. Context windows: 200K vs 1048K tokens. Compare their real outputs side by side below.
OpenAI Codex Mini is made by openai while GPT-4.1 Nano is from openai. OpenAI Codex Mini has a 200K token context window compared to GPT-4.1 Nano's 1048K. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $0.1/M for GPT-4.1 Nano. In community voting, In 10 community votes, OpenAI Codex Mini wins 57% of head-to-head duels.
In 10 community votes, OpenAI Codex Mini wins 57% of head-to-head duels. GPT-4.1 Nano leads in Web Design. Based on blind community voting from the Rival open dataset of 10+ human preference judgments for this pair.
OpenAI Codex Mini has the edge overall. In 10 blind votes, OpenAI Codex Mini wins 57% of the time.
GPT-4.1 Nano particularly excels in Web Design. GPT-4.1 Nano is 15x cheaper per token — worth considering if cost matters.
Ask 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.

Compare OpenAI Codex Mini and GPT-4.1 Nano, both from OpenAI, in 10 community votes, openai codex mini wins 57% of head-to-head duels, context windows of 200K vs 1.0M, tested across 10 shared challenges. Updated April 2026.
OpenAI Codex Mini is the better choice overall, winning 57% of 10 blind community votes on Rival. OpenAI Codex Mini costs $1.5/M input tokens vs $0.1/M for GPT-4.1 Nano. Context windows: 200K vs 1048K tokens. Compare their real outputs side by side below.
OpenAI Codex Mini is made by openai while GPT-4.1 Nano is from openai. OpenAI Codex Mini has a 200K token context window compared to GPT-4.1 Nano's 1048K. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $0.1/M for GPT-4.1 Nano. In community voting, In 10 community votes, OpenAI Codex Mini wins 57% of head-to-head duels.
In 10 community votes, OpenAI Codex Mini wins 57% of head-to-head duels. GPT-4.1 Nano leads in Web Design. Based on blind community voting from the Rival open dataset of 10+ human preference judgments for this pair.
OpenAI Codex Mini has the edge overall. In 10 blind votes, OpenAI Codex Mini wins 57% of the time.
GPT-4.1 Nano particularly excels in Web Design. GPT-4.1 Nano is 15x cheaper per token — worth considering if cost matters.
Ask 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.

10 fights queued
10 fights queued