Question 1

What is the difference between OpenAI o3 and Gemini 2.5 Pro Preview 06-05?

Accepted Answer

OpenAI o3 is developed by OpenAI while Gemini 2.5 Pro Preview 06-05 is developed by Google AI. in 27 community votes on RIVAL, Gemini 2.5 Pro Preview 06-05 wins 80% of head-to-head matchups. These results are based on blind head-to-head voting across 37 challenges.

Question 2

Which is better, OpenAI o3 or Gemini 2.5 Pro Preview 06-05?

Accepted Answer

Based on 27 community votes on RIVAL, Gemini 2.5 Pro Preview 06-05 wins 80% of head-to-head matchups against OpenAI o3. Gemini 2.5 Pro Preview 06-05 is strongest in Image Generation, Analysis, Reasoning.

Question 3

How much does OpenAI o3 cost compared to Gemini 2.5 Pro Preview 06-05?

Accepted Answer

OpenAI o3 costs $10/M input tokens and Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens. Gemini 2.5 Pro Preview 06-05 is $8.75/M cheaper per input. Gemini 2.5 Pro Preview 06-05 also wins more often in community votes, making it the better value.

Question 4

How are OpenAI o3 vs Gemini 2.5 Pro Preview 06-05 votes collected on RIVAL?

Accepted Answer

RIVAL presents both models' outputs side-by-side in blind duels — voters see the responses but don't know which model produced each one. This eliminates brand bias. 27 votes have been collected for this pair across 37 challenges. All vote data is part of RIVAL's open dataset.