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GPT Audio vs Nemotron 3 Ultra

Detailed technical comparison between GPT Audio (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 Audio: 0 WinsvsNemotron 3 Ultra: 6 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 Audio

The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced...

View GPT Audio 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 AudioNemotron 3 Ultra
ProviderOpenAINvidia
Context Window128,000 tokens512,288 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablebeta
API AvailableYesYes
Released Date2026-01-192026-06-04

API Pricing Comparison

Input Price per Million Tokens

GPT Audio

$2.50

Nemotron 3 Ultra

$0.50

Output Price per Million Tokens

GPT Audio

$10.00

Nemotron 3 Ultra

$2.20

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

Want to test both models live?

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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
79.6%vs87.8%+8.2% Nemotron 3 Ultra
GPT Audio
Nemotron 3 Ultra 🏆
HumanEvalPython coding & logic synthesis
77.8%vs87.0%+9.2% Nemotron 3 Ultra
GPT Audio
Nemotron 3 Ultra 🏆
MATHComplex mathematical problem solving
55.0%vs68.2%+13.2% Nemotron 3 Ultra
GPT Audio
Nemotron 3 Ultra 🏆
GPQAGraduate-level expert reasoning
40.4%vs49.6%+9.2% Nemotron 3 Ultra
GPT Audio
Nemotron 3 Ultra 🏆
HellaSwagCommonsense reasoning and inference
82.6%vs85.4%+2.8% Nemotron 3 Ultra
GPT Audio
Nemotron 3 Ultra 🏆
MT-BenchMulti-turn conversation flow quality
8.5%vs9.1%+0.6% Nemotron 3 Ultra
GPT Audio
Nemotron 3 Ultra 🏆

GPT Audio Quirks & Gotchas

No developer gotchas reported.

Nemotron 3 Ultra Quirks & Gotchas

No developer gotchas reported.

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