What is the difference between Claude 3 Opus and Gemini 3.1 Flash Lite Preview?

Claude 3 Opus is developed by Anthropic while Gemini 3.1 Flash Lite Preview is developed by Google AI. Claude 3 Opus has a 200K token context window vs Gemini 3.1 Flash Lite Preview's 1.0M. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Gemini 3.1 Flash Lite Preview?

It depends on your use case. Claude 3 Opus and Gemini 3.1 Flash Lite Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to Gemini 3.1 Flash Lite Preview?

Claude 3 Opus costs $15/M input tokens and Gemini 3.1 Flash Lite Preview costs $0.25/M input tokens. Gemini 3.1 Flash Lite Preview is $14.75/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 Claude 3 Opus and Gemini 3.1 Flash Lite Preview on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Gemini 3.1 Flash Lite Preview across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Mar 2026

Claude 3 OpusvsGemini 3.1 Flash Lite Preview

Gemini 3.1 Flash Lite Preview is cheaper than Claude 3 Opus at $0.25/M vs $15/M input tokens.

Claude 3 Opus and Gemini 3.1 Flash Lite Preview compared across 12 shared prompts
Spec	Claude 3 Opus	Gemini 3.1 Flash Lite Preview
Input price	$15/M tokens	$0.25/M tokens
Output price	$75/M tokens	$1.5/M tokens
Context window	200K tokens	1.0M tokens
Weights	—	Closed
Free API (OpenRouter)	No	No
Released	Mar 2024	Mar 2026