What is the difference between Llama 3.1 405B and Amazon Nova 2 Lite?

Llama 3.1 405B is developed by Meta AI while Amazon Nova 2 Lite is developed by Amazon. Llama 3.1 405B has a 128K token context window vs Amazon Nova 2 Lite's 1.0M. You can compare their actual outputs across 7 challenges on Rival to see how they differ in practice.

Which is better, Llama 3.1 405B or Amazon Nova 2 Lite?

It depends on your use case. Llama 3.1 405B and Amazon Nova 2 Lite each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 7 challenges so you can judge which fits your needs best.

How much does Llama 3.1 405B cost compared to Amazon Nova 2 Lite?

Llama 3.1 405B costs $2.7/M input tokens and Amazon Nova 2 Lite costs $0.5/M input tokens. Amazon Nova 2 Lite is $2.20/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 Llama 3.1 405B and Amazon Nova 2 Lite on Rival?

This page shows a side-by-side comparison of Llama 3.1 405B and Amazon Nova 2 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 Dec 2025

Llama 3.1 405BvsAmazon Nova 2 Lite

Amazon Nova 2 Lite is cheaper than Llama 3.1 405B at $0.5/M vs $2.7/M input tokens.

Llama 3.1 405B and Amazon Nova 2 Lite compared across 7 shared prompts
Spec	Llama 3.1 405B	Amazon Nova 2 Lite
Input price	$2.7/M tokens	$0.5/M tokens
Output price	$3.1/M tokens	$1.5/M tokens
Context window	128K tokens	1.0M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Jul 2024	Dec 2025