Compare GPT-5.2 Pro and OpenAI o4-mini, both from OpenAI, tested across 31 shared challenges. Updated April 2026.
GPT-5.2 Pro and OpenAI o4-mini are both competitive models. GPT-5.2 Pro costs $21/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.
GPT-5.2 Pro is made by openai while OpenAI o4-mini is from openai. On pricing, GPT-5.2 Pro costs $21/M input tokens vs $1.1/M for OpenAI o4-mini.
No community votes yet. On paper, GPT-5.2 Pro has the edge — bigger model tier, newer, bigger context window.
OpenAI o4-mini is 38x cheaper per token — worth considering if cost matters.
GPT-5.2 Pro uses 862.6x more bold
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 GPT-5.2 Pro and OpenAI o4-mini, both from OpenAI, tested across 31 shared challenges. Updated April 2026.
GPT-5.2 Pro and OpenAI o4-mini are both competitive models. GPT-5.2 Pro costs $21/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.
GPT-5.2 Pro is made by openai while OpenAI o4-mini is from openai. On pricing, GPT-5.2 Pro costs $21/M input tokens vs $1.1/M for OpenAI o4-mini.
No community votes yet. On paper, GPT-5.2 Pro has the edge — bigger model tier, newer, bigger context window.
OpenAI o4-mini is 38x cheaper per token — worth considering if cost matters.
GPT-5.2 Pro uses 862.6x more bold
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.

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26 fights queued
14+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy