What is the difference between ChatGPT-4o (March 2025) and Grok 3 Mini Beta?

ChatGPT-4o (March 2025) is developed by OpenAI while Grok 3 Mini Beta is developed by xAI. ChatGPT-4o (March 2025) has a 128K token context window vs Grok 3 Mini Beta's 131K. You can compare their actual outputs across 11 challenges on RIVAL to see how they differ in practice.

Which is better, ChatGPT-4o (March 2025) or Grok 3 Mini Beta?

It depends on your use case. ChatGPT-4o (March 2025) and Grok 3 Mini Beta each have strengths in different areas. RIVAL lets you compare their real outputs side-by-side across 11 challenges so you can judge which fits your needs best.

How much does ChatGPT-4o (March 2025) cost compared to Grok 3 Mini Beta?

ChatGPT-4o (March 2025) costs $5/M input tokens and Grok 3 Mini Beta costs $0.4/M input tokens. Grok 3 Mini Beta is $4.60/M cheaper per input. Check their side-by-side outputs on RIVAL to see if the price difference is justified by quality.

How can I compare ChatGPT-4o (March 2025) and Grok 3 Mini Beta on RIVAL?

This page shows a side-by-side comparison of ChatGPT-4o (March 2025) and Grok 3 Mini Beta across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.