Question 1

What is the difference between Gemini 2.5 Flash Preview and Gemini 3.1 Pro Preview?

Accepted Answer

Both are developed by Google AI but target different use cases. Gemini 2.5 Flash Preview has a 1.0M token context window vs Gemini 3.1 Pro Preview's 1.0M. You can compare their actual outputs across 26 challenges on RIVAL to see how they differ in practice.

Question 2

Which is better, Gemini 2.5 Flash Preview or Gemini 3.1 Pro Preview?

Accepted Answer

It depends on your use case. Gemini 2.5 Flash Preview and Gemini 3.1 Pro Preview each have strengths in different areas. RIVAL lets you compare their real outputs side-by-side across 26 challenges so you can judge which fits your needs best.

Question 3

How much does Gemini 2.5 Flash Preview cost compared to Gemini 3.1 Pro Preview?

Accepted Answer

Gemini 2.5 Flash Preview costs $0.15/M input tokens and Gemini 3.1 Pro Preview costs $2/M input tokens. Gemini 2.5 Flash Preview is $1.85/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 Gemini 3.1 Pro Preview on RIVAL?

Accepted Answer

This page shows a side-by-side comparison of Gemini 2.5 Flash Preview and Gemini 3.1 Pro Preview 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 Gemini 3.1 Pro Preview

What is the difference between Gemini 2.5 Flash Preview and Gemini 3.1 Pro Preview?

Which is better, Gemini 2.5 Flash Preview or Gemini 3.1 Pro Preview?

How much does Gemini 2.5 Flash Preview cost compared to Gemini 3.1 Pro Preview?

How can I compare Gemini 2.5 Flash Preview and Gemini 3.1 Pro Preview on RIVAL?