Llama 3.1 405B vs 
Mistral Large 4
Mistral Large 4 is cheaper than Llama 3.1 405B at $0.68/M vs $2.7/M input tokens.
Framer-Style Animation
Sections that transition like Framer. Timing is the whole grade.
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Price and specs
| Spec | Llama 3.1 405B | Mistral Large 4 |
|---|---|---|
| Input price | $2.7/M tokens | $0.68/M tokens |
| Output price | $3.1/M tokens | $2.09/M tokens |
| Context window | 128K tokens | 524K tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Jul 2024 | Oct 2026 |
| At 10M a month | $27.00 | $6.80 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Llama 3.1 405B
No hosts listed on OpenRouter.
Mistral Large 41 host
Per million tokens. Prices and uptime via OpenRouter, checked 7 Oct 2026.
Common questions
What is the difference between Llama 3.1 405B and Mistral Large 4?
Llama 3.1 405B is developed by Meta AI while Mistral Large 4 is developed by Mistral AI. Llama 3.1 405B has a 128K token context window vs Mistral Large 4's 524K. 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 Mistral Large 4?
It depends on your use case. Llama 3.1 405B and Mistral Large 4 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 Mistral Large 4?
Llama 3.1 405B costs $2.7/M input tokens and Mistral Large 4 costs $0.68/M input tokens. Mistral Large 4 is $2.02/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 Mistral Large 4 on Rival?
This page shows a side-by-side comparison of Llama 3.1 405B and Mistral Large 4 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.
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