AI Models · Open-Source vs Paid

Nemotron 3 Ultra Open vs GPT-4o (batch) Paid

Nemotron 3 Ultra vs GPT-4o (batch) compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Nemotron 3 UltraOpenNVIDIA
$0.63 /M input
$3.13 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window262K tokens
MultimodalNo
Self-hostYes
GPT-4o (batch)PaidOpenAI
$1.25 /M input
$5 /M outputManaged API (no infra to run)
TypeProprietary
Context window128K tokens
MultimodalYes
Self-hostNo
Choose Nemotron 3 Ultra if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-4o (batch) if you want frontier capability through a managed API with zero infrastructure to run.

Nemotron 3 Ultra vs GPT-4o (batch) specs

SpecNemotron 3 UltraGPT-4o (batch)Winner
MakerNVIDIAOpenAI
TypeOpen-weightProprietaryNemotron 3 Ultra
Context window262K tokens128K tokensNemotron 3 Ultra
Input price$0.63/M · free self-host$1.25/MNemotron 3 Ultra
Output price$3.13/M · free self-host$5/MNemotron 3 Ultra
Vision / multimodalNoYesGPT-4o (batch)
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Nemotron 3 Ultra
LicenseNVIDIA Open ModelProprietaryNemotron 3 Ultra

Price gap & when to choose each

1.6×cheaper per output token

Nemotron 3 Ultra is ~1.6× cheaper than GPT-4o (batch) on output tokens ($3.13 vs $5 per M tokens).

Choose Nemotron 3 Ultra if…
  • You want to self-host or run on your cloud
  • You need the longer 262K context window
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose GPT-4o (batch) if…
  • You want frontier performance through a managed API
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityNemotron 3 UltraGPT-4o (batch)
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Nemotron 3 Ultra vs GPT-4o (batch)

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Nemotron 3 Ultra
GPT-4o (batch)
Intelligence index
23.4
9
Coding index
49.3
GPQA
86.7%
65.5%
Humanity's Last Exam
28.4%
4%
Long Context Reasoning
79.3%
SciCode
40.3%
IFBench
81.4%
τ²-Bench
83.3%
τ-Bench Banking
14.2%
Terminal-Bench
53.9%
Terminal-Bench Hard
36.4%
Math index
25.7
MMLU-Pro
80.3%
LiveCodeBench
42.5%
MATH-500
89.3%
AIME
32.7%
AIME 2025
25.7%
Speed
180.1 tok/s
0 tok/s
Latency
1.26s
0s
Intelligence per $
21.3

Benchmark data by Artificial Analysis.

How Nemotron 3 Ultra and GPT-4o (batch) score

🏆 Best value & openness: Nemotron 3 Ultra (4.3 vs 3.0 / 5)
CriterionNemotron 3 UltraGPT-4o (batch)
Cost-efficiency4.04.0
Context window4.03.5
Openness5.01.5
Self-hosting5.01.0
Multimodality3.55.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Nemotron 3 Ultra Open

NVIDIA · Open-weight

NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...

GPT-4o (batch) Paid

OpenAI · Proprietary

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Nemotron 3 Ultra (free)Nemotron 3 SuperNemotron 3.5 LightningNemotron 3.5 Lightning (free)Nemotron 3 Super (free)Nemotron 3 Nano Omni (free)Nemotron 3 Nano 30B A3BNemotron 3.5 Content SafetyNemotron 3.5 Content Safety (free)

Frequently asked questions

Is Nemotron 3 Ultra as good as GPT-4o (batch)?

Nemotron 3 Ultra is open-weight and competitive on many tasks, but GPT-4o (batch) may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Nemotron 3 Ultra locally?

Yes. Nemotron 3 Ultra has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. GPT-4o (batch) is API-only and cannot be self-hosted.

How much cheaper is Nemotron 3 Ultra?

Nemotron 3 Ultra costs $3.13/M output vs $5/M for GPT-4o (batch) — roughly 2x cheaper via API, and free if you self-host.

Nemotron 3 Ultra vs GPT-4o (batch) — which should I pick in 2026?

Choose Nemotron 3 Ultra if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-4o (batch) if you want frontier capability through a managed API with zero infrastructure to run.

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