Llama 3.1 405B vs 
Qwen3.6 Plus Preview (free)
Qwen3.6 Plus Preview (free) is cheaper than Llama 3.1 405B at $0/M vs $2.7/M input tokens.
Framer-Style Animation
Sections that transition like Framer. Timing is the whole grade.
Loading the build
Loading the build
Which answer wins?
Favorites
Movie
Album
Book
City
Game
Llama 3.1 405BLlama 3.1 405B
No pick
No pick
No pick
No pick
Sgt Peppers Lonely Hearts Club Band
Cien años de soledad
No pick
No pick
Qwen3.6 Plus Preview (free)Qwen3.6 Plus Preview (free)
The Matrix
OK Computer
Dune
Tokyo
Chrono Trigger
Price and specs
| Spec | Llama 3.1 405B | Qwen3.6 Plus Preview (free) |
|---|---|---|
| Input price | $2.7/M tokens | Free |
| Output price | $3.1/M tokens | Free |
| Context window | 128K tokens | 1.0M tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Jul 2024 | Mar 2026 |
| At 10M a month | $27.00 | $0 |
Input tokens at list price. No caching, no batch discount.
Common questions
What is the difference between Llama 3.1 405B and Qwen3.6 Plus Preview (free)?
Llama 3.1 405B is developed by Meta AI while Qwen3.6 Plus Preview (free) is developed by Qwen. Llama 3.1 405B has a 128K token context window vs Qwen3.6 Plus Preview (free)'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 Plus Preview (free)?
It depends on your use case. Llama 3.1 405B and Qwen3.6 Plus Preview (free) 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 Plus Preview (free)?
Llama 3.1 405B costs $2.7/M input tokens and Qwen3.6 Plus Preview (free) costs $0/M input tokens. Qwen3.6 Plus Preview (free) is $2.70/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 Plus Preview (free) on Rival?
This page shows a side-by-side comparison of Llama 3.1 405B and Qwen3.6 Plus Preview (free) 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.
More comparisons
Against the newest arrivals
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Same lab, same size, long tail
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- Qwen3.6 Plus Preview (free) vs Pony AlphaSame size
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- Qwen3.6 Plus Preview (free) vs Qwen Plus 0728Same lab
