Model comparison

GLM-5.3-Flash vs Nemotron 3 Ultra

GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 42.5 on the Noometry Index.

Last verified . 26 shared benchmarks.

GLM-5.3-Flash Z.ai (Zhipu)

51.8

Rank #41 Confirmed

Nemotron 3 Ultra NVIDIA

42.5

Rank #113 Confirmed

Summary

  • They share 26 benchmarks with published results for both. GLM-5.3-Flash scores higher in 8 categories and Nemotron 3 Ultra in 1 category; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GLM-5.3-Flash leads 53.3 to 35.3.
  • The biggest single-benchmark swing is APEX-Agents: 52.8% for GLM-5.3-Flash and 22.7% for Nemotron 3 Ultra.
  • GLM-5.3-Flash is cheaper at $0.15 / $0.50 per million input/output tokens, against $0.50 / $2.20 for Nemotron 3 Ultra.
  • GLM-5.3-Flash accepts more context: 1M tokens versus 262K.

Side by side

GLM-5.3-Flash and Nemotron 3 Ultra specifications
GLM-5.3-FlashNemotron 3 Ultra
ProviderZ.ai (Zhipu)NVIDIA
Noometry Index51.842.5
Released2026-08-202026-06-04
WeightsOpenOpen
Context window1M262K
Max output131K128K
Input $ / M tokens$0.15$0.50
Output $ / M tokens$0.50$2.20
Results tracked4030

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Category by category

Coding GLM-5.3-Flash leads

GLM-5.3-Flash: 53.1 (#31), Nemotron 3 Ultra: 38.1 (#182)

Coding benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
FrontierCode31.8%13.6%
SciCode51.6%40.3%
LMArena Coding15081468
DeepSWE63.4%—
CursorBench36.8%—
LMArena WebDev1609—
FrontierSWE18.1%—
WeirdML—43.5%
ALE-Bench303.55—

Agentic & Tool Use GLM-5.3-Flash leads

GLM-5.3-Flash: 34.2 (#47), Nemotron 3 Ultra: 23.4 (#126)

Agentic & Tool Use benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
APEX-Agents52.8%22.7%
GDP.pdf14%—

Reasoning GLM-5.3-Flash leads

GLM-5.3-Flash: 48.0 (#42), Nemotron 3 Ultra: 31.0 (#82)

Reasoning benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
CritPt15.4%3.1%
Chess Puzzles14%12%
LMArena Hard Prompts14911452
Mystery Game Puzzles8%20%
Epoch Capabilities Index151.88146.17
ARC-AGI-265.8%—
ARC-AGI-191%—
DTBench—90.1%
LMCA—36.9%
Surface Evolver Bench52.5%—
Bench to the Future 30.15—

Math GLM-5.3-Flash leads

GLM-5.3-Flash: 53.3 (#47), Nemotron 3 Ultra: 35.3 (#187)

Math benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
OTIS Mock AIME 2024-202593.9%86.7%
ProofBench21%2%
LMArena Math15001457
FrontierMath (Tiers 1-3)55.8%—
FrontierMath Tier 417.1%—

Knowledge GLM-5.3-Flash leads

GLM-5.3-Flash: 58.4 (#36), Nemotron 3 Ultra: 52.5 (#61)

Knowledge benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
GPQA Diamond90.2%85.4%
LMArena Expert15131472

Multimodal Not comparable

GLM-5.3-Flash: 42.8 (#27), Nemotron 3 Ultra: —

Multimodal benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
LMArena Vision1296—

Multilingual GLM-5.3-Flash leads

GLM-5.3-Flash: 56.0 (#25), Nemotron 3 Ultra: 53.5 (#64)

Multilingual benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
LMArena Non-English14621427
LMArena Chinese15271497
LMArena French14961472
LMArena German14701471
LMArena Korean14461386
LMArena Russian14691417
LMArena Spanish14711454
LMArena Japanese1429—

Instruction Following GLM-5.3-Flash leads

GLM-5.3-Flash: 77.5 (#20), Nemotron 3 Ultra: 74.7 (#88)

Instruction Following benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
LMArena Instruction Following14781418

Long Context GLM-5.3-Flash leads

GLM-5.3-Flash: 45.4 (#39), Nemotron 3 Ultra: 43.9 (#81)

Long Context benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
LMArena Longer Query14821437

Writing & Preference Too close to call

GLM-5.3-Flash: 65.3 (#50), Nemotron 3 Ultra: 66.3 (#36)

Writing & Preference benchmarks
BenchmarkGLM-5.3-FlashNemotron 3 Ultra
LMArena Text14711445
LMArena Creative Writing14421398
LMArena Multi-Turn14671411
EQ-Bench Creative Writing—1692

Frequently asked questions

Is GLM-5.3-Flash better than Nemotron 3 Ultra?

GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 42.5 on the Noometry Index.

Which is cheaper, GLM-5.3-Flash or Nemotron 3 Ultra?

GLM-5.3-Flash is cheaper. It lists at $0.15 per million input tokens and $0.50 per million output tokens; Nemotron 3 Ultra lists at $0.50 and $2.20.

Is GLM-5.3-Flash or Nemotron 3 Ultra better for coding?

GLM-5.3-Flash scores higher on coding benchmarks: 53.1 versus 38.1 in the Noometry coding category.

Which has the bigger context window?

GLM-5.3-Flash does, with 1M tokens against 262K.

How many benchmarks do GLM-5.3-Flash and Nemotron 3 Ultra share?

26 benchmarks have published results for both models. GLM-5.3-Flash has 40 scored results on Noometry and Nemotron 3 Ultra has 30.

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