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  5. Llama 3.1 405BvsNemotron 3 Nano Omni (free)
Updated Apr 2026

Llama 3.1 405BvsNemotron 3 Nano Omni (free)

Nemotron 3 Nano Omni (free) is cheaper than Llama 3.1 405B at $0/M vs $2.7/M input tokens.

Llama 3.1 405B and Nemotron 3 Nano Omni (free) compared across 4 shared prompts
SpecLlama 3.1 405BNemotron 3 Nano Omni (free)
Input price$2.7/M tokensFree
Output price$3.1/M tokensFree
Context window128K tokens256K tokens
WeightsOpen—
Free API (OpenRouter)NoYes (1 provider)
ReleasedJul 2024Apr 2026
Our Verdict
Llama 3.1 405B
Llama 3.1 405B
Nemotron 3 Nano Omni (free)
Nemotron 3 Nano Omni (free)

Not enough votes to call it. On the specs, nothing separates them.

Too close to call
API pricing

Cost per 1M tokens

Llama 3.1 405B
Input
$2.70
Output
$3.10
Nemotron 3 Nano Omni (free)
Input
$0.000
Output
$0.000
Where to run it

1 host

Llama 3.1 405B

No hosts listed on OpenRouter.

Nemotron 3 Nano Omni (free)1 host
HostInOutContextUptime
NVIDIAdegraded$0 in·$0 out·256k·77.6% up

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Llama 3.1 405B is developed by Meta AI while Nemotron 3 Nano Omni (free) is developed by NVIDIA. Llama 3.1 405B has a 128K token context window vs Nemotron 3 Nano Omni (free)'s 256K. You can compare their actual outputs across 4 challenges on Rival to see how they differ in practice.

It depends on your use case. Llama 3.1 405B and Nemotron 3 Nano Omni (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 4 challenges so you can judge which fits your needs best.

Llama 3.1 405B costs $2.7/M input tokens and Nemotron 3 Nano Omni (free) costs $0/M input tokens. Nemotron 3 Nano Omni (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.

This page shows a side-by-side comparison of Llama 3.1 405B and Nemotron 3 Nano Omni (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.

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Model pages

Llama 3.1 405B logo
Llama 3.1 405B12 outputs, specs and price
Nemotron 3 Nano Omni (free) logo
Nemotron 3 Nano Omni (free)17 outputs, specs and price
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