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  5. Nemotron 3 Nano Omni (free)vsOpenAI o4-mini
Updated Apr 2026

Nemotron 3 Nano Omni (free)vsOpenAI o4-mini

Nemotron 3 Nano Omni (free) is cheaper than OpenAI o4-mini at $0/M vs $1.1/M input tokens.

Nemotron 3 Nano Omni (free) and OpenAI o4-mini compared across 17 shared prompts
SpecNemotron 3 Nano Omni (free)OpenAI o4-mini
Input priceFree$1.1/M tokens
Output priceFree$4.4/M tokens
Context window256K tokens—
Weights—Closed
Free API (OpenRouter)Yes (1 provider)No
ReleasedApr 2026Apr 2025
Side by side

Same prompt, both answers

Opening lines from 2 of the 17 prompts both answered. Formatting stripped, words untouched.

Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

Nemotron 3 Nano Omni (free)1,246 words
We need to build a simplified year-by-year table FY2026-FY2030. First, compute initial purchase price: EBITDA FY2025 = $120m. Purchase price = 12.0x EBITDA = 12 * 120 = $1,440m (enterprise value). Transaction fees = 2.0% of EV = 0.02 * 1440 = $28.8m, paid at close from equity. Total leverage at close = 5.5x EBITDA.
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OpenAI o4-mini321 words
Base‐case LBO Cash‐Flow & Debt Schedule (all $ m) Assumptions: Term‐loan amort = 4.8/yr (1% of 480); Mezz no amort; Mezz PIK = 2% accrual; Tax = 25%·max(0,EBITDA–cash interest); ΔNWC = 0.5%·ΔRev; Capex = 3%·Rev; all excess cash pays Term optional.
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Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

Nemotron 3 Nano Omni (free)1,503 words
LedgerLift (LLLT) – Investment Committee Memo Date: 3 Nov 2025 Recommendation & Thesis Recommendation: Long 12‑month price target: $55 – $60 (≈20‑30 % upside vs.
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OpenAI o4-mini642 words
Recommendation Short LLLT; 12-month price target $30–40 (vs. $46 today). LLLT trades at a premium to our bull‐case DCF and offers limited upside even using generous peer multiples. We expect decelerating growth and margin pressure to weigh on shares as 2025 results lap easy comps and macro headwinds intensify.
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Our Verdict
Nemotron 3 Nano Omni (free)
Nemotron 3 Nano Omni (free)
OpenAI o4-mini
OpenAI o4-miniRunner-up

Not enough votes to call it. On the specs, Nemotron 3 Nano Omni (free) has the edge: bigger model tier, newer, bigger context window.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Nemotron 3 Nano Omni (free)
Input
$0.000
Output
$0.000
OpenAI o4-mini
Input
$1.10
Output
$4.40
Where to run it

2 hosts

Nemotron 3 Nano Omni (free)1 host
HostInOutContextUptime
NVIDIAdegraded$0 in·$0 out·256k·77.6% 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 23 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Nemotron 3 Nano Omni (free) is developed by NVIDIA while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.

It depends on your use case. Nemotron 3 Nano Omni (free) and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.

Nemotron 3 Nano Omni (free) costs $0/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. Nemotron 3 Nano Omni (free) 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 Nano Omni (free) 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.

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Model pages

Nemotron 3 Nano Omni (free) logo
Nemotron 3 Nano Omni (free)17 outputs, specs and price
OpenAI o4-mini logo
OpenAI o4-mini59 outputs, specs and price
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