What is the difference between GPT-5 Pro and Grok 3 Mini Beta?

GPT-5 Pro is developed by OpenAI while Grok 3 Mini Beta is developed by xAI. GPT-5 Pro has a 400K token context window vs Grok 3 Mini Beta's 131K. You can compare their actual outputs across 8 challenges on Rival to see how they differ in practice.

Which is better, GPT-5 Pro or Grok 3 Mini Beta?

It depends on your use case. GPT-5 Pro and Grok 3 Mini Beta each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 8 challenges so you can judge which fits your needs best.

How much does GPT-5 Pro cost compared to Grok 3 Mini Beta?

GPT-5 Pro costs $15/M input tokens and Grok 3 Mini Beta costs $0.4/M input tokens. Grok 3 Mini Beta is $14.60/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 GPT-5 Pro and Grok 3 Mini Beta on Rival?

This page shows a side-by-side comparison of GPT-5 Pro 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.