GPT-5.2 Pro vs OpenAI o3
Compare GPT-5.2 Pro and OpenAI o3, both from OpenAI, in 3 community votes, openai o3 wins 67% of head-to-head duels, tested across 31 shared challenges. Updated April 2026.
Which is better, GPT-5.2 Pro or OpenAI o3?
OpenAI o3 is the better choice overall, winning 67% of 3 blind community votes on Rival. GPT-5.2 Pro costs $21/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between GPT-5.2 Pro and OpenAI o3
GPT-5.2 Pro is made by openai while OpenAI o3 is from openai. On pricing, GPT-5.2 Pro costs $21/M input tokens vs $10/M for OpenAI o3. In community voting, In 3 community votes, OpenAI o3 wins 67% of head-to-head duels.
In 3 community votes, OpenAI o3 wins 67% of head-to-head duels. Based on blind community voting from the Rival open dataset of 3+ human preference judgments for this pair.
Pick OpenAI o3. In 3 blind votes, OpenAI o3 wins 67% of the time. That's not luck.
OpenAI o3 is 4.2x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-5.2 Pro uses 12.4x 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.
