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GPT-4o vs Nemotron 3 Ultra

Detailed technical comparison between GPT-4o (OpenAI) and Nemotron 3 Ultra (Nvidia). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

GPT-4o: 6 WinsvsNemotron 3 Ultra: 0 Wins
Context Leader

Nemotron 3 Ultra

512,288 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Nemotron 3 Ultra

$0.50 / MTok
OpenAIactive

GPT-4o

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...

View GPT-4o Full Specs →
Nvidiaactive

Nemotron 3 Ultra

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...

View Nemotron 3 Ultra Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGPT-4oNemotron 3 Ultra
ProviderOpenAINvidia
Context Window128,000 tokens512,288 tokens🏆
Agent Suitability90/100N/A
Time to First Token (TTFT)280 msN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablebeta
API AvailableYesYes
Released Date2024-05-132026-06-04

API Pricing Comparison

Input Price per Million Tokens

GPT-4o

$2.50

Nemotron 3 Ultra

$0.50

Output Price per Million Tokens

GPT-4o

$10.00

Nemotron 3 Ultra

$2.20

💡 Cost Ratio: Nemotron 3 Ultra is 5.0x cheaper per input token than GPT-4o.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

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Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
88.7%vs87.8%+0.9% GPT-4o
GPT-4o 🏆
Nemotron 3 Ultra
HumanEvalPython coding & logic synthesis
90.2%vs87.0%+3.2% GPT-4o
GPT-4o 🏆
Nemotron 3 Ultra
MATHComplex mathematical problem solving
76.6%vs68.2%+8.4% GPT-4o
GPT-4o 🏆
Nemotron 3 Ultra
GPQAGraduate-level expert reasoning
53.6%vs49.6%+4.0% GPT-4o
GPT-4o 🏆
Nemotron 3 Ultra
HellaSwagCommonsense reasoning and inference
88.7%vs85.4%+3.3% GPT-4o
GPT-4o 🏆
Nemotron 3 Ultra
MT-BenchMulti-turn conversation flow quality
9.3%vs9.1%+0.2% GPT-4o
GPT-4o 🏆
Nemotron 3 Ultra

GPT-4o Quirks & Gotchas

  • ▸Strong multimodal performance — best vision+tool calling combo
  • ▸Legacy model — migrate to GPT-5 for latest improvements

Nemotron 3 Ultra Quirks & Gotchas

No developer gotchas reported.

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