Noometry

Model comparison

Grok 3 vs Llama 3.1 Nemotron Ultra 253b v1

Grok 3 is the stronger model overall, scoring 39.9 to 36.7 on the Noometry Index.

Last verified . 10 shared benchmarks.

Grok 3 xAI

39.9

Rank #157 Confirmed

Llama 3.1 Nemotron Ultra 253b v1 NVIDIA

36.7

Rank #213 Confirmed

Summary

  • They share 10 benchmarks with published results for both. Grok 3 scores higher in 6 categories and Llama 3.1 Nemotron Ultra 253b v1 in 2 categories; 6 gaps are clear of the uncertainty.
  • The widest gap is in agentic & tool use, where Grok 3 leads 30.5 to 15.7.
  • Llama 3.1 Nemotron Ultra 253b v1 has downloadable open weights; the other is API-only.

Side by side

Grok 3Llama 3.1 Nemotron Ultra 253b v1
ProviderxAINVIDIA
Noometry Index39.936.7
Released2025-04-09—
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked4011

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Category by category

Coding Grok 3 leads

Grok 3: 41.9 (#115), Llama 3.1 Nemotron Ultra 253b v1: 38.4 (#177)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
LMArena Coding14321312
Aider Polyglot53.3%—
WeirdML37.2%—

Agentic & Tool Use Grok 3 leads

Grok 3: 30.5 (#76), Llama 3.1 Nemotron Ultra 253b v1: 15.7 (#149)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
Berkeley Function Calling Leaderboard—10%
BALROG29.5%—

Reasoning Llama 3.1 Nemotron Ultra 253b v1 leads

Grok 3: 13.7 (#333), Llama 3.1 Nemotron Ultra 253b v1: 26.3 (#134)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
LMArena Hard Prompts14341316
ARC-AGI-20%—
SimpleBench36.1%—
Kagi LLM Benchmark61.3%—
ARC-AGI-15.5%—
Epoch Capabilities Index138.33—

Math Too close to call

Grok 3: 38.0 (#145), Llama 3.1 Nemotron Ultra 253b v1: 37.5 (#152)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
LMArena Math13911360
OTIS Mock AIME 2024-202555.6%—
Omni-MATH46.4%—
MATH Level 588.7%—
FrontierMath (Feb 2025 set)3.8%—
FrontierMath Tier 4 (v1)0%—

Knowledge Not comparable

Grok 3: 46.2 (#82), Llama 3.1 Nemotron Ultra 253b v1: —

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
GPQA Diamond75.8%—
MMLU-Pro78.8%—
Confabulations14.2%—
Vectara Hallucination Rate5.8%—
GPQA (HELM)65%—
LMArena Expert1421—

Multilingual Grok 3 leads

Grok 3: 52.3 (#87), Llama 3.1 Nemotron Ultra 253b v1: 43.1 (#187)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
LMArena Non-English14101282
LMArena Russian14161284
LMArena Chinese1448—
LMArena French1460—
LMArena German1431—
LMArena Japanese1387—
LMArena Korean1373—
LMArena Spanish1417—

Instruction Following Grok 3 leads

Grok 3: 75.0 (#73), Llama 3.1 Nemotron Ultra 253b v1: 69.0 (#178)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
LMArena Instruction Following14091308
IFEval88.4%—

Long Context Too close to call

Grok 3: 38.7 (#192), Llama 3.1 Nemotron Ultra 253b v1: 39.5 (#177)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
LMArena Longer Query14391299
Fiction.LiveBench58.3%—

Writing & Preference Grok 3 leads

Grok 3: 55.8 (#141), Llama 3.1 Nemotron Ultra 253b v1: 52.2 (#175)

BenchmarkGrok 3Llama 3.1 Nemotron Ultra 253b v1
LMArena Text14261320
LMArena Creative Writing14141314
LMArena Multi-Turn14251317
Short-Story Creative Writing76.4%—
EQ-Bench Creative Writing1186—
WildBench84.9%—

Frequently asked questions

Is Grok 3 better than Llama 3.1 Nemotron Ultra 253b v1?

Grok 3 is the stronger model overall, scoring 39.9 to 36.7 on the Noometry Index.

Is Grok 3 or Llama 3.1 Nemotron Ultra 253b v1 better for coding?

Grok 3 scores higher on coding benchmarks: 41.9 versus 38.4 in the Noometry coding category.

How many benchmarks do Grok 3 and Llama 3.1 Nemotron Ultra 253b v1 share?

10 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Llama 3.1 Nemotron Ultra 253b v1 has 11.

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