Question 1

What is the difference between Grok 3 Mini Beta and o3 Mini?

Accepted Answer

Grok 3 Mini Beta is developed by xAI while o3 Mini is developed by OpenAI. Grok 3 Mini Beta has a 131K token context window vs o3 Mini's 64K. in 1 community votes on RIVAL, Grok 3 Mini Beta wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 11 challenges.

Question 2

Which is better, Grok 3 Mini Beta or o3 Mini?

Accepted Answer

Based on 1 community votes on RIVAL, Grok 3 Mini Beta wins 100% of head-to-head matchups against o3 Mini.

Question 3

How much does Grok 3 Mini Beta cost compared to o3 Mini?

Accepted Answer

Grok 3 Mini Beta costs $0.4/M input tokens and o3 Mini costs $1.1/M input tokens. Grok 3 Mini Beta is $0.70/M cheaper per input. Grok 3 Mini Beta also wins more often in community votes, making it the better value.

Question 4

How are Grok 3 Mini Beta vs o3 Mini 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. 1 votes have been collected for this pair across 11 challenges. All vote data is part of RIVAL's open dataset.