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DeepSeek V3.1 vs Nemotron 3 Ultra

Detailed technical comparison between DeepSeek V3.1 (DeepSeek) 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

DeepSeek V3.1: 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

DeepSeek V3.1

$0.25 / MTok
DeepSeekactive

DeepSeek V3.1

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

View DeepSeek V3.1 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
SpecificationDeepSeek V3.1Nemotron 3 Ultra
ProviderDeepSeekNvidia
Context Window163,840 tokens512,288 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelself hostablemanaged api
Production Stabilitystablebeta
API AvailableYesYes
Released Date2025-08-212026-06-04

API Pricing Comparison

Input Price per Million Tokens

DeepSeek V3.1

$0.25

Nemotron 3 Ultra

$0.60

Output Price per Million Tokens

DeepSeek V3.1

$0.95

Nemotron 3 Ultra

$3.60

💡 Cost Ratio: DeepSeek V3.1 is 2.4x cheaper per input token than Nemotron 3 Ultra.

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
80.0%vs87.8%+7.8% Nemotron 3 Ultra
DeepSeek V3.1
Nemotron 3 Ultra 🏆
HumanEvalPython coding & logic synthesis
78.2%vs87.0%+8.8% Nemotron 3 Ultra
DeepSeek V3.1
Nemotron 3 Ultra 🏆
MATHComplex mathematical problem solving
55.4%vs68.2%+12.8% Nemotron 3 Ultra
DeepSeek V3.1
Nemotron 3 Ultra 🏆
GPQAGraduate-level expert reasoning
40.8%vs49.6%+8.8% Nemotron 3 Ultra
DeepSeek V3.1
Nemotron 3 Ultra 🏆
HellaSwagCommonsense reasoning and inference
83.0%vs85.4%+2.4% Nemotron 3 Ultra
DeepSeek V3.1
Nemotron 3 Ultra 🏆
MT-BenchMulti-turn conversation flow quality
8.6%vs9.1%+0.6% Nemotron 3 Ultra
DeepSeek V3.1
Nemotron 3 Ultra 🏆

DeepSeek V3.1 Quirks & Gotchas

No developer gotchas reported.

Nemotron 3 Ultra Quirks & Gotchas

No developer gotchas reported.

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