Noometry

Model comparison

GPT-4.1 mini vs GPT-6 Luna

GPT-6 Luna is the stronger model overall, scoring 53.3 to 33.6 on the Noometry Index.

Last verified . 31 shared benchmarks.

GPT-4.1 mini OpenAI

33.6

Rank #240 Confirmed

GPT-6 Luna OpenAI

53.3

Rank #36 Confirmed

Summary

  • They share 31 benchmarks with published results for both. GPT-4.1 mini scores higher in 0 categories and GPT-6 Luna in 10 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-6 Luna leads 76.1 to 24.1.
  • The biggest single-benchmark swing is ARC-AGI-1: 3.5% for GPT-4.1 mini and 86.7% for GPT-6 Luna.
  • GPT-6 Luna is cheaper at $0.10 / $0.50 per million input/output tokens, against $0.40 / $1.60 for GPT-4.1 mini.
  • GPT-6 Luna accepts more context: 1.05M tokens versus 1.05M.

Side by side

GPT-4.1 miniGPT-6 Luna
ProviderOpenAIOpenAI
Noometry Index33.653.3
Released2025-04-142026-09-22
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output33K128K
Input $ / M tokens$0.40$0.10
Output $ / M tokens$1.60$0.50
Results tracked4742

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Category by category

Coding GPT-6 Luna leads

GPT-4.1 mini: 30.6 (#293), GPT-6 Luna: 55.5 (#25)

BenchmarkGPT-4.1 miniGPT-6 Luna
SciCode40.4%54.6%
LMArena Coding13671439
DeepSWE—66.6%
FrontierCode—42.4%
SWE-bench Verified (bash only)23.9%—
Aider Polyglot32.4%—
LMArena WebDev—1581
WeirdML37.6%—
BigCodeBench Instruct48.9%—
CadEval16%—
ALE-Bench—1,577

Agentic & Tool Use Too close to call

GPT-4.1 mini: 33.3 (#55), GPT-6 Luna: 33.3 (#54)

BenchmarkGPT-4.1 miniGPT-6 Luna
APEX-Agents—44.3%
Berkeley Function Calling Leaderboard50.5%—
GDP.pdf—23%

Reasoning GPT-6 Luna leads

GPT-4.1 mini: 10.8 (#340), GPT-6 Luna: 48.2 (#41)

BenchmarkGPT-4.1 miniGPT-6 Luna
ARC-AGI-20%59.3%
ARC-AGI-13.5%86.7%
CritPt0%19.4%
Chess Puzzles7%31%
LMArena Hard Prompts13491411
Mystery Game Puzzles7%7%
DTBench68.8%90.1%
LMCA21.1%44.5%
Epoch Capabilities Index135.01156.28
Kagi LLM Benchmark48.6%—
NYT Connections (extended)—68.7%

Math GPT-6 Luna leads

GPT-4.1 mini: 24.1 (#270), GPT-6 Luna: 76.1 (#15)

BenchmarkGPT-4.1 miniGPT-6 Luna
FrontierMath (Tiers 1-3)6.7%78.9%
OTIS Mock AIME 2024-202544.7%98.9%
LMArena Math13431416
FrontierMath Tier 4—56.1%
ProofBench—64%
Omni-MATH49.1%—
MATH Level 587.3%—
FrontierMath (Feb 2025 set)4.5%—

Knowledge GPT-6 Luna leads

GPT-4.1 mini: 34.7 (#194), GPT-6 Luna: 57.0 (#41)

BenchmarkGPT-4.1 miniGPT-6 Luna
GPQA Diamond65.8%90.5%
SimpleQA Verified12.7%41.4%
LMArena Expert13381444
MMLU-Pro78.3%—
GPQA (HELM)61.4%—

Multimodal GPT-6 Luna leads

GPT-4.1 mini: 35.8 (#82), GPT-6 Luna: 42.4 (#30)

BenchmarkGPT-4.1 miniGPT-6 Luna
LMArena Vision11811217
Blueprint-Bench 2—31.2%
Furniture Assembly—44.2%

Multilingual GPT-6 Luna leads

GPT-4.1 mini: 45.7 (#166), GPT-6 Luna: 50.5 (#117)

BenchmarkGPT-4.1 miniGPT-6 Luna
LMArena Non-English13181386
LMArena Chinese13291433
LMArena French13581420
LMArena German13511369
LMArena Japanese12901369
LMArena Korean12981360
LMArena Russian13241394
LMArena Spanish13191393

Instruction Following Too close to call

GPT-4.1 mini: 73.7 (#118), GPT-6 Luna: 74.3 (#99)

BenchmarkGPT-4.1 miniGPT-6 Luna
LMArena Instruction Following13331409
IFEval90.4%—

Long Context GPT-6 Luna leads

GPT-4.1 mini: 31.8 (#275), GPT-6 Luna: 43.0 (#111)

BenchmarkGPT-4.1 miniGPT-6 Luna
LMArena Longer Query13441409
Fiction.LiveBench44.4%—

Writing & Preference GPT-6 Luna leads

GPT-4.1 mini: 48.6 (#199), GPT-6 Luna: 58.3 (#119)

BenchmarkGPT-4.1 miniGPT-6 Luna
LMArena Text13401391
LMArena Creative Writing13001363
LMArena Multi-Turn13541396
EQ-Bench Creative Writing1147—
WildBench83.8%—

Frequently asked questions

Is GPT-4.1 mini better than GPT-6 Luna?

GPT-6 Luna is the stronger model overall, scoring 53.3 to 33.6 on the Noometry Index.

Which is cheaper, GPT-4.1 mini or GPT-6 Luna?

GPT-6 Luna is cheaper. It lists at $0.10 per million input tokens and $0.50 per million output tokens; GPT-4.1 mini lists at $0.40 and $1.60.

Is GPT-4.1 mini or GPT-6 Luna better for coding?

GPT-6 Luna scores higher on coding benchmarks: 55.5 versus 30.6 in the Noometry coding category.

Which has the bigger context window?

GPT-6 Luna does, with 1.05M tokens against 1.05M.

How many benchmarks do GPT-4.1 mini and GPT-6 Luna share?

31 benchmarks have published results for both models. GPT-4.1 mini has 47 scored results on Noometry and GPT-6 Luna has 42.

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