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GLM 5.1 vs Nemotron 3 Ultra

Detailed technical comparison between GLM 5.1 (Zhipu AI) 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

GLM 5.1: 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
Zhipu AIactive

GLM 5.1

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...

View GLM 5.1 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
SpecificationGLM 5.1Nemotron 3 Ultra
ProviderZhipu AINvidia
Context Window204,800 tokens512,288 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablebeta
API AvailableYesYes
Released Date2026-04-072026-06-04

API Pricing Comparison

Input Price per Million Tokens

GLM 5.1

$0.97

Nemotron 3 Ultra

$0.50

Output Price per Million Tokens

GLM 5.1

$3.04

Nemotron 3 Ultra

$2.20

💡 Cost Ratio: Nemotron 3 Ultra is 1.9x cheaper per input token than GLM 5.1.

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
88.0%vs87.8%+0.2% GLM 5.1
GLM 5.1 🏆
Nemotron 3 Ultra
HumanEvalPython coding & logic synthesis
89.5%vs87.0%+2.5% GLM 5.1
GLM 5.1 🏆
Nemotron 3 Ultra
MATHComplex mathematical problem solving
77.0%vs68.2%+8.8% GLM 5.1
GLM 5.1 🏆
Nemotron 3 Ultra
GPQAGraduate-level expert reasoning
51.0%vs49.6%+1.4% GLM 5.1
GLM 5.1 🏆
Nemotron 3 Ultra
HellaSwagCommonsense reasoning and inference
88.5%vs85.4%+3.1% GLM 5.1
GLM 5.1 🏆
Nemotron 3 Ultra
MT-BenchMulti-turn conversation flow quality
9.2%vs9.1%+0.1% GLM 5.1
GLM 5.1 🏆
Nemotron 3 Ultra

GLM 5.1 Quirks & Gotchas

No developer gotchas reported.

Nemotron 3 Ultra Quirks & Gotchas

No developer gotchas reported.

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