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Claude Opus 4.1 vs Nemotron 3 Ultra

Detailed technical comparison between Claude Opus 4.1 (Anthropic) 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

Claude Opus 4.1: 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
Anthropicactive

Claude Opus 4.1

Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...

View Claude Opus 4.1 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
SpecificationClaude Opus 4.1Nemotron 3 Ultra
ProviderAnthropicNvidia
Context Window200,000 tokens512,288 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablebeta
API AvailableYesYes
Released Date2025-08-052026-06-04

API Pricing Comparison

Input Price per Million Tokens

Claude Opus 4.1

$15.00

Nemotron 3 Ultra

$0.50

Output Price per Million Tokens

Claude Opus 4.1

$75.00

Nemotron 3 Ultra

$2.20

💡 Cost Ratio: Nemotron 3 Ultra is 30.0x cheaper per input token than Claude Opus 4.1.

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
91.4%vs87.8%+3.6% Claude Opus 4.1
Claude Opus 4.1 🏆
Nemotron 3 Ultra
HumanEvalPython coding & logic synthesis
92.6%vs87.0%+5.6% Claude Opus 4.1
Claude Opus 4.1 🏆
Nemotron 3 Ultra
MATHComplex mathematical problem solving
79.8%vs68.2%+11.6% Claude Opus 4.1
Claude Opus 4.1 🏆
Nemotron 3 Ultra
GPQAGraduate-level expert reasoning
58.2%vs49.6%+8.6% Claude Opus 4.1
Claude Opus 4.1 🏆
Nemotron 3 Ultra
HellaSwagCommonsense reasoning and inference
90.4%vs85.4%+5.0% Claude Opus 4.1
Claude Opus 4.1 🏆
Nemotron 3 Ultra
MT-BenchMulti-turn conversation flow quality
9.3%vs9.1%+0.2% Claude Opus 4.1
Claude Opus 4.1 🏆
Nemotron 3 Ultra

Claude Opus 4.1 Quirks & Gotchas

No developer gotchas reported.

Nemotron 3 Ultra Quirks & Gotchas

No developer gotchas reported.

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