What is the difference between Grok 4 Fast (free) and Llama 4 Maverick?

Grok 4 Fast (free) is developed by xAI while Llama 4 Maverick is developed by Meta AI. Grok 4 Fast (free) has a 2.0M token context window vs Llama 4 Maverick's 1.0M. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

Which is better, Grok 4 Fast (free) or Llama 4 Maverick?

It depends on your use case. Grok 4 Fast (free) and Llama 4 Maverick each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

How much does Grok 4 Fast (free) cost compared to Llama 4 Maverick?

Grok 4 Fast (free) costs $0/M input tokens and Llama 4 Maverick costs $1.5/M input tokens. Grok 4 Fast (free) 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 Grok 4 Fast (free) and Llama 4 Maverick on Rival?

This page shows a side-by-side comparison of Grok 4 Fast (free) and Llama 4 Maverick 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 Sep 2025

Grok 4 Fast (free)vsLlama 4 Maverick

Grok 4 Fast (free) is cheaper than Llama 4 Maverick at $0/M vs $1.5/M input tokens.

Grok 4 Fast (free) and Llama 4 Maverick compared across 34 shared prompts
Spec	Grok 4 Fast (free)	Llama 4 Maverick
Input price	Free	$1.5/M tokens
Output price	Free	$2.5/M tokens
Context window	2.0M tokens	1.0M tokens
Parameters	Not disclosed	17B active (400B total)
Weights	—	Open
Free API (OpenRouter)	No	No
Released	Sep 2025	Apr 2025