What is the difference between DeepSeek R1 and Gemini 3.1 Flash Lite?

DeepSeek R1 is developed by DeepSeek while Gemini 3.1 Flash Lite is developed by Google AI. DeepSeek R1 has a 128K token context window vs Gemini 3.1 Flash Lite's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek R1 or Gemini 3.1 Flash Lite?

It depends on your use case. DeepSeek R1 and Gemini 3.1 Flash Lite each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does DeepSeek R1 cost compared to Gemini 3.1 Flash Lite?

DeepSeek R1 costs $0.55/M input tokens and Gemini 3.1 Flash Lite costs $0.25/M input tokens. Gemini 3.1 Flash Lite is $0.30/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 DeepSeek R1 and Gemini 3.1 Flash Lite on Rival?

This page shows a side-by-side comparison of DeepSeek R1 and Gemini 3.1 Flash Lite 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 May 2026

DeepSeek R1vsGemini 3.1 Flash Lite

Gemini 3.1 Flash Lite is cheaper than DeepSeek R1 at $0.25/M vs $0.55/M input tokens.

DeepSeek R1 and Gemini 3.1 Flash Lite compared across 53 shared prompts
Spec	DeepSeek R1	Gemini 3.1 Flash Lite
Input price	$0.55/M tokens	$0.25/M tokens
Output price	$2.19/M tokens	$1.5/M tokens
Context window	128K tokens	1.0M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Feb 2025	May 2026
LiveCodeBench	63.5%	72.0%