Model comparison

Grok 4.5 vs Llama 2-13B

Grok 4.5 is the stronger model overall, scoring 55.0 to 29.6 on the Noometry Index.

Last verified . 20 shared benchmarks.

Grok 4.5 xAI

55.0

Rank #25 Confirmed

Llama 2-13B Meta

29.6

Rank #309 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Grok 4.5 scores higher in 8 categories and Llama 2-13B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.5 leads 56.1 to 12.8.
  • The biggest single-benchmark swing is DTBench: 96.5% for Grok 4.5 and 42.2% for Llama 2-13B.
  • Llama 2-13B has downloadable open weights; the other is API-only.

Side by side

Grok 4.5 and Llama 2-13B specifications
Grok 4.5Llama 2-13B
ProviderxAIMeta
Noometry Index55.029.6
Released2026-07-082023-07-18
WeightsProprietaryOpen
Context window500K—
Max output500K—
Input $ / M tokens$2—
Output $ / M tokens$6—
Results tracked5232

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Category by category

Coding Grok 4.5 leads

Grok 4.5: 52.2 (#35), Llama 2-13B: 30.9 (#291)

Coding benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Coding14741062
DeepSWE53.8%—
FrontierCode42.4%—
LMArena WebDev1553—
SciCode54.1%—
WeirdML46.4%—
ALE-Bench1,309—

Agentic & Tool Use Not comparable

Grok 4.5: 44.4 (#17), Llama 2-13B: —

Agentic & Tool Use benchmarks
BenchmarkGrok 4.5Llama 2-13B
APEX-Agents56.2%—
τ²-bench Banking47.9%—
PostTrainBench23.4%—
GBAEval65.4%—
GDP.pdf14%—
LMArena Search1213—
Vending-Bench 23,887—

Reasoning Grok 4.5 leads

Grok 4.5: 56.1 (#25), Llama 2-13B: 12.8 (#337)

Reasoning benchmarks
BenchmarkGrok 4.5Llama 2-13B
Chess Puzzles36%0%
LMArena Hard Prompts14621051
DTBench96.5%42.2%
Epoch Capabilities Index153.92106.17
ARC-AGI-252.6%—
SimpleBench70%—
Kagi LLM Benchmark83.5%—
NYT Connections (extended)79.9%—
ARC-AGI-187.2%—
CritPt15.4%—
LMCA45.2%—
Surface Evolver Bench74.4%—
BIG-Bench Hard—58.2%
HellaSwag—80.7%
LAMBADA—76.5%
PIQA—80.8%
WinoGrande—72.8%

Math Grok 4.5 leads

Grok 4.5: 60.9 (#35), Llama 2-13B: 31.1 (#229)

Math benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Math14591065
FrontierMath (Tiers 1-3)57.2%—
FrontierMath Tier 424.4%—
OTIS Mock AIME 2024-202597.8%—
ProofBench31%—
GSM8K—36.9%

Knowledge Grok 4.5 leads

Grok 4.5: 62.3 (#24), Llama 2-13B: 28.1 (#249)

Knowledge benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Expert14661030
GPQA Diamond93.4%—
SimpleQA Verified48.3%—
ARC (AI2) Challenge—60.3%
BoolQ—82.4%
MMLU—55.6%
OpenBookQA—57%
TriviaQA—79.6%

Multimodal Not comparable

Grok 4.5: 37.6 (#72), Llama 2-13B: —

Multimodal benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Vision1288—
Blueprint-Bench 227.3%—
Furniture Assembly22.5%—
LMArena Document1452—
ScienceQA—55.8%

Multilingual Grok 4.5 leads

Grok 4.5: 54.4 (#42), Llama 2-13B: 26.5 (#279)

Multilingual benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Non-English14401024
LMArena Chinese14961001
LMArena French14561044
LMArena German14461009
LMArena Japanese1428894
LMArena Korean1404953
LMArena Russian14481055
LMArena Spanish14501087

Instruction Following Grok 4.5 leads

Grok 4.5: 76.0 (#48), Llama 2-13B: 53.3 (#287)

Instruction Following benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Instruction Following14461045

Long Context Grok 4.5 leads

Grok 4.5: 44.8 (#56), Llama 2-13B: 32.3 (#269)

Long Context benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Longer Query14631064

Writing & Preference Grok 4.5 leads

Grok 4.5: 65.8 (#42), Llama 2-13B: 29.8 (#289)

Writing & Preference benchmarks
BenchmarkGrok 4.5Llama 2-13B
LMArena Text14481084
LMArena Creative Writing14421047
LMArena Multi-Turn14561050
EQ-Bench Creative Writing1579—

Frequently asked questions

Is Grok 4.5 better than Llama 2-13B?

Grok 4.5 is the stronger model overall, scoring 55.0 to 29.6 on the Noometry Index.

Is Grok 4.5 or Llama 2-13B better for coding?

Grok 4.5 scores higher on coding benchmarks: 52.2 versus 30.9 in the Noometry coding category.

How many benchmarks do Grok 4.5 and Llama 2-13B share?

20 benchmarks have published results for both models. Grok 4.5 has 52 scored results on Noometry and Llama 2-13B has 32.

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