What is the difference between Grok 3 Thinking and Llama 3.1 405B?

Grok 3 Thinking is developed by xAI while Llama 3.1 405B is developed by Meta AI. Grok 3 Thinking has a 128K token context window vs Llama 3.1 405B's 128K. You can compare their actual outputs across 3 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 Thinking or Llama 3.1 405B?

It depends on your use case. Grok 3 Thinking and Llama 3.1 405B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 3 challenges so you can judge which fits your needs best.

How can I compare Grok 3 Thinking and Llama 3.1 405B on Rival?

This page shows a side-by-side comparison of Grok 3 Thinking and Llama 3.1 405B 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 Feb 2025

Grok 3 ThinkingvsLlama 3.1 405B

Grok 3 Thinking is the newer model, released after Llama 3.1 405B.

Grok 3 Thinking and Llama 3.1 405B compared across 3 shared prompts
Spec	Grok 3 Thinking	Llama 3.1 405B
Input price	—	$2.7/M tokens
Output price	—	$3.1/M tokens
Context window	128K tokens	128K tokens
Weights	—	Open
Free API (OpenRouter)	—	No
Released	Feb 2025	Jul 2024
MMLU	86.2%	88.6%