What is the difference between Gemini 3.6 Flash and Grok 4?

Gemini 3.6 Flash is developed by Google AI while Grok 4 is developed by xAI. Gemini 3.6 Flash has a 1.0M token context window vs Grok 4's 256K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3.6 Flash or Grok 4?

It depends on your use case. Gemini 3.6 Flash and Grok 4 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 Gemini 3.6 Flash cost compared to Grok 4?

Gemini 3.6 Flash costs $1.5/M input tokens and Grok 4 costs $3/M input tokens. Gemini 3.6 Flash is $1.50/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 Gemini 3.6 Flash and Grok 4 on Rival?

This page shows a side-by-side comparison of Gemini 3.6 Flash and Grok 4 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 Jul 2026

Gemini 3.6 FlashvsGrok 4

Gemini 3.6 Flash is cheaper than Grok 4 at $1.5/M vs $3/M input tokens.

Gemini 3.6 Flash and Grok 4 compared across 53 shared prompts
Spec	Gemini 3.6 Flash	Grok 4
Input price	$1.5/M tokens	$3/M tokens
Output price	$7.5/M tokens	$15/M tokens
Context window	1.0M tokens	256K tokens
Weights	Closed	—
Free API (OpenRouter)	No	No
Released	Jul 2026	Jul 2025