Noometry

Model comparison

Grok 4.5 vs Laguna XS.2

Grok 4.5 has enough public results to be ranked (#22); Laguna XS.2 does not yet, so treat this comparison as directional.

Last verified . 2 shared benchmarks.

Grok 4.5 xAI

55.0

Rank #22 Confirmed

Laguna XS.2 Poolside

32.5

Unranked Sparse

Summary

  • They share 2 benchmarks with published results for both. Grok 4.5 scores higher in 2 categories and Laguna XS.2 in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in math, where Grok 4.5 leads 60.7 to 20.3.
  • The biggest single-benchmark swing is ProofBench: 31% for Grok 4.5 and 0% for Laguna XS.2.
  • Laguna XS.2 has downloadable open weights; the other is API-only.

Side by side

Grok 4.5Laguna XS.2
ProviderxAIPoolside
Noometry Index55.032.5
Released2026-07-082026-04-28
WeightsProprietaryOpen
Context window500K—
Max output500K—
Input $ / M tokens$2—
Output $ / M tokens$6—
Results tracked522

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Category by category

Coding Grok 4.5 leads

Grok 4.5: 51.7 (#34), Laguna XS.2: 34.1

BenchmarkGrok 4.5Laguna XS.2
LMArena WebDev15521302
DeepSWE53.8%—
FrontierCode42.4%—
SciCode54.1%—
WeirdML46.4%—
LMArena Coding1473—
ALE-Bench1,309—

Agentic & Tool Use Not comparable

Grok 4.5: 44.4 (#15), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
APEX-Agents56.2%—
τ²-bench Banking47.9%—
PostTrainBench23.4%—
GBAEval65.4%—
GDP.pdf14%—
LMArena Search1213—
Vending-Bench 23,887—

Reasoning Not comparable

Grok 4.5: 56.0 (#23), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
ARC-AGI-252.6%—
SimpleBench70%—
Kagi LLM Benchmark83.5%—
NYT Connections (extended)79.9%—
ARC-AGI-187.2%—
CritPt15.4%—
Chess Puzzles36%—
LMArena Hard Prompts1462—
DTBench96.5%—
LMCA45.2%—
Surface Evolver Bench74.4%—
Epoch Capabilities Index154.02—

Math Grok 4.5 leads

Grok 4.5: 60.7 (#29), Laguna XS.2: 20.3

BenchmarkGrok 4.5Laguna XS.2
ProofBench31%0%
FrontierMath (Tiers 1-3)57.2%—
FrontierMath Tier 424.4%—
OTIS Mock AIME 2024-202597.8%—
LMArena Math1457—

Knowledge Not comparable

Grok 4.5: 62.3 (#21), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
GPQA Diamond93.4%—
SimpleQA Verified48.3%—
LMArena Expert1466—

Multimodal Not comparable

Grok 4.5: 37.8 (#63), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
LMArena Vision1287—
Blueprint-Bench 227.3%—
Furniture Assembly22.5%—
LMArena Document1452—

Multilingual Not comparable

Grok 4.5: 54.5 (#43), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
LMArena Non-English1439—
LMArena Chinese1497—
LMArena French1458—
LMArena German1448—
LMArena Japanese1425—
LMArena Korean1402—
LMArena Russian1447—
LMArena Spanish1452—

Instruction Following Not comparable

Grok 4.5: 76.3 (#45), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
LMArena Instruction Following1446—

Long Context Not comparable

Grok 4.5: 44.8 (#54), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
LMArena Longer Query1463—

Writing & Preference Not comparable

Grok 4.5: 65.9 (#40), Laguna XS.2: —

BenchmarkGrok 4.5Laguna XS.2
LMArena Text1448—
LMArena Creative Writing1442—
EQ-Bench Creative Writing1579—
LMArena Multi-Turn1457—

Frequently asked questions

Is Grok 4.5 better than Laguna XS.2?

Grok 4.5 has enough public results to be ranked (#22); Laguna XS.2 does not yet, so treat this comparison as directional.

Is Grok 4.5 or Laguna XS.2 better for coding?

Grok 4.5 scores higher on coding benchmarks: 51.7 versus 34.1 in the Noometry coding category.

How many benchmarks do Grok 4.5 and Laguna XS.2 share?

2 benchmarks have published results for both models. Grok 4.5 has 52 scored results on Noometry and Laguna XS.2 has 2.

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