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  5. Nemotron 3.5 Content SafetyvsOpenAI o4-mini
Updated Jun 2026

Nemotron 3.5 Content SafetyvsOpenAI o4-mini

Nemotron 3.5 Content Safety is cheaper than OpenAI o4-mini at $0/M vs $1.1/M input tokens.

Nemotron 3.5 Content Safety and OpenAI o4-mini compared across 53 shared prompts
SpecNemotron 3.5 Content SafetyOpenAI o4-mini
Input priceFree$1.1/M tokens
Output priceFree$4.4/M tokens
Context window128K tokens—
WeightsOpenClosed
Free API (OpenRouter)Yes (1 provider)No
ReleasedJun 2026Apr 2025
Our Verdict
OpenAI o4-mini
OpenAI o4-mini
Nemotron 3.5 Content Safety
Nemotron 3.5 Content SafetyRunner-up

Not enough votes to call it. On the specs, OpenAI o4-mini has the edge: bigger model tier, major provider backing.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Nemotron 3.5 Content Safety
Input
$0.000
Output
$0.000
OpenAI o4-mini
Input
$1.10
Output
$4.40
Where to run it

2 hosts

Nemotron 3.5 Content Safety1 host
HostInOutContextUptime
NVIDIA$0 in·$0 out·128k·97% up
OpenAI o4-mini1 host
HostInOutContextUptime
OpenAI$1.10 in·$4.40 out·200k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 21 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Nemotron 3.5 Content Safety is developed by NVIDIA while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

It depends on your use case. Nemotron 3.5 Content Safety and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

Nemotron 3.5 Content Safety costs $0/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. Nemotron 3.5 Content Safety is $1.10/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 Nemotron 3.5 Content Safety and OpenAI o4-mini 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.

Keep exploring

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Same lab, same size, long tail

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Model pages

Nemotron 3.5 Content Safety logo
Nemotron 3.5 Content Safety58 outputs, specs and price
OpenAI o4-mini logo
OpenAI o4-mini59 outputs, specs and price
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