Question 1

What is the difference between Gemini 2.5 Flash Preview and Claude Opus 4?

Accepted Answer

Gemini 2.5 Flash Preview is developed by Google AI while Claude Opus 4 is developed by Anthropic. Gemini 2.5 Flash Preview has a 1.0M token context window vs Claude Opus 4's 200K. You can compare their actual outputs across 15 challenges on RIVAL to see how they differ in practice.

Question 2

Which is better, Gemini 2.5 Flash Preview or Claude Opus 4?

Accepted Answer

It depends on your use case. Gemini 2.5 Flash Preview and Claude Opus 4 each have strengths in different areas. RIVAL lets you compare their real outputs side-by-side across 15 challenges so you can judge which fits your needs best.

Question 3

How much does Gemini 2.5 Flash Preview cost compared to Claude Opus 4?

Accepted Answer

Gemini 2.5 Flash Preview costs $0.15/M input tokens and Claude Opus 4 costs $15/M input tokens. Gemini 2.5 Flash Preview is $14.85/M cheaper per input. Check their side-by-side outputs on RIVAL to see if the price difference is justified by quality.

Question 4

How can I compare Gemini 2.5 Flash Preview and Claude Opus 4 on RIVAL?

Accepted Answer

This page shows a side-by-side comparison of Gemini 2.5 Flash Preview and Claude Opus 4 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.

Gemini 2.5 Flash Preview vs Claude Opus 4

What is the difference between Gemini 2.5 Flash Preview and Claude Opus 4?

Which is better, Gemini 2.5 Flash Preview or Claude Opus 4?

How much does Gemini 2.5 Flash Preview cost compared to Claude Opus 4?

How can I compare Gemini 2.5 Flash Preview and Claude Opus 4 on RIVAL?