Noometry

Model comparison

GPT-6 Luna vs Laguna XS.2

GPT-6 Luna has enough public results to be ranked (#36); Laguna XS.2 does not yet, so treat this comparison as directional.

Last verified . 2 shared benchmarks.

GPT-6 Luna OpenAI

53.3

Rank #36 Confirmed

Laguna XS.2 Poolside

32.9

Unranked Sparse

Summary

  • They share 2 benchmarks with published results for both. GPT-6 Luna 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 GPT-6 Luna leads 76.1 to 21.1.
  • The biggest single-benchmark swing is ProofBench: 64% for GPT-6 Luna and 0% for Laguna XS.2.
  • Laguna XS.2 has downloadable open weights; the other is API-only.

Side by side

GPT-6 LunaLaguna XS.2
ProviderOpenAIPoolside
Noometry Index53.332.9
Released2026-09-222026-04-28
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$0.10—
Output $ / M tokens$0.50—
Results tracked422

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Category by category

Coding GPT-6 Luna leads

GPT-6 Luna: 55.5 (#25), Laguna XS.2: 34.4

BenchmarkGPT-6 LunaLaguna XS.2
LMArena WebDev15811302
DeepSWE66.6%—
FrontierCode42.4%—
SciCode54.6%—
LMArena Coding1439—
ALE-Bench1,577—

Agentic & Tool Use Not comparable

GPT-6 Luna: 33.3 (#54), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
APEX-Agents44.3%—
GDP.pdf23%—

Reasoning Not comparable

GPT-6 Luna: 48.2 (#41), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
ARC-AGI-259.3%—
NYT Connections (extended)68.7%—
ARC-AGI-186.7%—
CritPt19.4%—
Chess Puzzles31%—
LMArena Hard Prompts1411—
Mystery Game Puzzles7%—
DTBench90.1%—
LMCA44.5%—
Epoch Capabilities Index156.28—

Math GPT-6 Luna leads

GPT-6 Luna: 76.1 (#15), Laguna XS.2: 21.1

BenchmarkGPT-6 LunaLaguna XS.2
ProofBench64%0%
FrontierMath (Tiers 1-3)78.9%—
FrontierMath Tier 456.1%—
OTIS Mock AIME 2024-202598.9%—
LMArena Math1416—

Knowledge Not comparable

GPT-6 Luna: 57.0 (#41), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
GPQA Diamond90.5%—
SimpleQA Verified41.4%—
LMArena Expert1444—

Multimodal Not comparable

GPT-6 Luna: 42.4 (#30), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
LMArena Vision1217—
Blueprint-Bench 231.2%—
Furniture Assembly44.2%—

Multilingual Not comparable

GPT-6 Luna: 50.5 (#117), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
LMArena Non-English1386—
LMArena Chinese1433—
LMArena French1420—
LMArena German1369—
LMArena Japanese1369—
LMArena Korean1360—
LMArena Russian1394—
LMArena Spanish1393—

Instruction Following Not comparable

GPT-6 Luna: 74.3 (#99), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
LMArena Instruction Following1409—

Long Context Not comparable

GPT-6 Luna: 43.0 (#111), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
LMArena Longer Query1409—

Writing & Preference Not comparable

GPT-6 Luna: 58.3 (#119), Laguna XS.2: —

BenchmarkGPT-6 LunaLaguna XS.2
LMArena Text1391—
LMArena Creative Writing1363—
LMArena Multi-Turn1396—

Frequently asked questions

Is GPT-6 Luna better than Laguna XS.2?

GPT-6 Luna has enough public results to be ranked (#36); Laguna XS.2 does not yet, so treat this comparison as directional.

Is GPT-6 Luna or Laguna XS.2 better for coding?

GPT-6 Luna scores higher on coding benchmarks: 55.5 versus 34.4 in the Noometry coding category.

How many benchmarks do GPT-6 Luna and Laguna XS.2 share?

2 benchmarks have published results for both models. GPT-6 Luna has 42 scored results on Noometry and Laguna XS.2 has 2.

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