What is the difference between Llama 3.1 405B and Qwen3.6 Flash?

Llama 3.1 405B is developed by Meta AI while Qwen3.6 Flash is developed by Qwen. Llama 3.1 405B has a 128K token context window vs Qwen3.6 Flash's 1.0M. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Llama 3.1 405B or Qwen3.6 Flash?

It depends on your use case. Llama 3.1 405B and Qwen3.6 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Llama 3.1 405B cost compared to Qwen3.6 Flash?

Llama 3.1 405B costs $2.7/M input tokens and Qwen3.6 Flash costs $0.25/M input tokens. Qwen3.6 Flash is $2.45/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 Qwen3.6 Flash on Rival?

This page shows a side-by-side comparison of Llama 3.1 405B and Qwen3.6 Flash 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 Apr 2026

Llama 3.1 405BvsQwen3.6 Flash

Qwen3.6 Flash is cheaper than Llama 3.1 405B at $0.25/M vs $2.7/M input tokens.

Llama 3.1 405B and Qwen3.6 Flash compared across 12 shared prompts
Spec	Llama 3.1 405B	Qwen3.6 Flash
Input price	$2.7/M tokens	$0.25/M tokens
Output price	$3.1/M tokens	$1.5/M tokens
Context window	128K tokens	1.0M tokens
Weights	Open	Open
Free API (OpenRouter)	No	No
Released	Jul 2024	Apr 2026