LLMBenchmark.ai

Enter opens the highlighted result. Esc closes.

GPT-4.1 Mini vs GPT-6 Luna

Updated October 21, 2026. 55 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace GPT-4.1 Mini Replace GPT-6 Luna
GPT-4.1 MiniOpenAI
Coding
28.5
Overall
10.2
Output $/M
$1.60
0
GPT-6 LunaOpenAI
Coding
71.4
Overall
38.1
Output $/M
$0.50
54
vs boards won of 55 shared, 1 tied

Decision reading

Pick GPT-6 Luna for coding: it scores 71.4 on the Vibe Coding Index against 28.5 for GPT-4.1 Mini.

GPT-4.1 Mini is neither cheaper nor larger in context, and leads no benchmark both models were measured on.

Model AGPT-4.1 MiniOpenAI28.5/1002 independent benchmarks$1.818 per solved taskModel BGPT-6 LunaOpenAI71.4/1002 independent benchmarksNo cost per solved task
Shared results
55
GPT-4.1 Mini only
29
GPT-6 Luna only
47
Like-for-like categories
7 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
GPT-4.1 Mini 28.5 from 2 benchmarks, GPT-6 Luna 71.4 from 2 benchmarks.
Widest category
Math, 37.7 points apart on average over 4 shared benchmarks.
Widest single gap
ARC-AGI: GPT-4.1 Mini 3.5% against GPT-6 Luna 86.7%, 83.2 points apart on a 0 to 100 scale.
Output price
GPT-4.1 Mini $1.60 against GPT-6 Luna $0.50 per million output tokens, 3.2x apart.
Context window
GPT-4.1 Mini takes 1.05M tokens, GPT-6 Luna 1.05M.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryGPT-4.1 MiniBarsGPT-6 LunaTies
Coding02
Intelligence02
Reasoning0101 tie
Math04
Knowledge05
Web design06
General025
All shared boards0541 tie
CodingLike-for-likeFour of these boards feed the Vibe Coding Index02
Coding benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
Aider polyglot32.4%Not measuredOnly GPT-4.1 Mini measured
SWE-bench Verified23.9%Not measuredOnly GPT-4.1 Mini measured
LiveBench codingNot measured84.5%Only GPT-6 Luna measured
LMArena WebDevNot measured1578Only GPT-6 Luna measured
AA Coding Index20.2Not measuredOnly GPT-4.1 Mini measured
LiveCodeBench (Vals AI)58.2%Not measuredOnly GPT-4.1 Mini measured
Terminal-Bench 4 (Vals AI)Not measured13.6%Only GPT-6 Luna measured
Vibe Code Bench (Vals AI)Not measured81.7%Only GPT-6 Luna measured
Code migration (Vals AI)Not measured42.5%Only GPT-6 Luna measured
ProgramBench (Vals AI)Not measured0.5%Only GPT-6 Luna measured
IOI (Vals AI)Not measured55.6%Only GPT-6 Luna measured
Terminal-Bench 2.1 (Vals AI)Not measured73.0%Only GPT-6 Luna measured
SWE-bench Multimodal (Vals AI)Not measured37.5%Only GPT-6 Luna measured
CyberBench (Vals AI)Not measured76.3%Only GPT-6 Luna measured
LiveCodeBench (Artificial Analysis run)48.3%Not measuredOnly GPT-4.1 Mini measured
SciCodeNot measured54.6%Only GPT-6 Luna measured
Terminal-Bench Hard (Artificial Analysis run)7.6%Not measuredOnly GPT-4.1 Mini measured
FrontierCodeNot measured42.4%Only GPT-6 Luna measured
WeirdML37.6%Not measuredOnly GPT-4.1 Mini measured
ALE-BenchNot measured1576.9Only GPT-6 Luna measured
LMArena Text: coding13671437GPT-6 Luna
LMArena Text: software and IT13601423GPT-6 Luna
LMArena WebDev: ReactNot measured1573Only GPT-6 Luna measured
LMArena WebDev: HTMLNot measured1595Only GPT-6 Luna measured
LMArena WebDev: from an imageNot measured1571Only GPT-6 Luna measured
Neither model has a result on the other 13 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
AA Intelligence Index10.238.1GPT-6 Luna
Epoch Capabilities Index134.9156.8GPT-6 Luna
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index18 boards, none shared
Agentic work benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
Design Arena: agents building web appsNot measured1189Only GPT-6 Luna measured
Design Arena: agents building full-stack appsNot measured1158Only GPT-6 Luna measured
Design Arena: agents building mobile appsNot measured1133Only GPT-6 Luna measured
LiveBench researchNot measured43.5%Only GPT-6 Luna measured
LiveBench browserNot measured72.0%Only GPT-6 Luna measured
LiveBench long agenticNot measured48.1%Only GPT-6 Luna measured
SREBench (Vals AI)Not measured2.7%Only GPT-6 Luna measured
Finance Agent (Vals AI)Not measured49.9%Only GPT-6 Luna measured
Tax Agent Bench (Vals AI)Not measured19.9%Only GPT-6 Luna measured
Legal Research Bench (Vals AI)Not measured30.3%Only GPT-6 Luna measured
Harvey's Legal Agent Benchmark (Vals AI)Not measured4.2%Only GPT-6 Luna measured
Excel Modeling Benchmark (Vals AI)Not measured68.5%Only GPT-6 Luna measured
BioMysteryBench (Vals AI)Not measured61.5%Only GPT-6 Luna measured
Terminal-Bench-Science (Vals AI)Not measured4.3%Only GPT-6 Luna measured
Vals Science IndexNot measured28.4%Only GPT-6 Luna measured
τ²-Bench Telecom52.9%Not measuredOnly GPT-4.1 Mini measured
APEX-AgentsNot measured44.3%Only GPT-6 Luna measured
SpireClimbNot measured0.0%Only GPT-6 Luna measured
Neither model has a result on the other 21 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index010
Reasoning benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
GPQA Diamond67.9%Not measuredOnly GPT-4.1 Mini measured
LiveBench reasoningNot measured81.8%Only GPT-6 Luna measured
MysteryMechanism (Vals AI)Not measured19.4%Only GPT-6 Luna measured
MMMU Pro (Vals AI)70.5%Not measuredOnly GPT-4.1 Mini measured
GPQA Diamond (Artificial Analysis run)66.4%Not measuredOnly GPT-4.1 Mini measured
Humanity's Last Exam (Artificial Analysis run)5.0%38.5%GPT-6 Luna
GPQA Diamond (Epoch AI run)65.8%90.5%GPT-6 Luna
ARC-AGI3.5%86.7%GPT-6 Luna
ARC-AGI-20.0%59.3%GPT-6 Luna
Chess puzzles1.0%36.0%GPT-6 Luna
Mystery game puzzles7.0%7.0%Tie
LMArena Text: hard prompts13491410GPT-6 Luna
LMArena Text: expert13381442GPT-6 Luna
LMArena Text: hard prompts in English13621410GPT-6 Luna
LMArena Vision: diagrams11821245GPT-6 Luna
LMArena Vision: homework12141261GPT-6 Luna
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index04
Math benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
AIME49.4%Not measuredOnly GPT-4.1 Mini measured
MATH 500 (Vals AI)88.0%Not measuredOnly GPT-4.1 Mini measured
MGSM (Vals AI)87.8%Not measuredOnly GPT-4.1 Mini measured
AA Math Index46.3Not measuredOnly GPT-4.1 Mini measured
AIME 2025 (Artificial Analysis run)46.3%Not measuredOnly GPT-4.1 Mini measured
OTIS Mock AIME44.7%98.9%GPT-6 Luna
FrontierMath, tiers 1 to 36.7%78.9%GPT-6 Luna
FrontierMath, tier 4Not measured56.1%Only GPT-6 Luna measured
ProofBenchNot measured64.0%Only GPT-6 Luna measured
MATH level 587.3%Not measuredOnly GPT-4.1 Mini measured
LMArena Text: math13431409GPT-6 Luna
LMArena Text: mathematical work13471427GPT-6 Luna
Neither model has a result on the other 1 board here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index05
Knowledge benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
MMLU Pro77.2%Not measuredOnly GPT-4.1 Mini measured
LegalBench (Vals AI)78.0%Not measuredOnly GPT-4.1 Mini measured
CorpFin (Vals AI)57.9%Not measuredOnly GPT-4.1 Mini measured
TaxEval (Vals AI)71.9%Not measuredOnly GPT-4.1 Mini measured
MortgageTax (Vals AI)65.5%Not measuredOnly GPT-4.1 Mini measured
MedQA (Vals AI)84.6%Not measuredOnly GPT-4.1 Mini measured
MedCode (Vals AI)Not measured44.7%Only GPT-6 Luna measured
MMLU Pro (Artificial Analysis run)78.1%Not measuredOnly GPT-4.1 Mini measured
SimpleQA Verified12.7%41.4%GPT-6 Luna
LMArena Text: science13281386GPT-6 Luna
LMArena Text: medicine and healthcare13241352GPT-6 Luna
LMArena Text: legal and government13431400GPT-6 Luna
LMArena Text: business and finance13221388GPT-6 Luna
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index06
Web design benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
Design Arena: websites9971272GPT-6 Luna
Design Arena: UI components9611297GPT-6 Luna
Design Arena: game dev10711259GPT-6 Luna
Design Arena: data viz10341215GPT-6 Luna
Design Arena: 3D8371217GPT-6 Luna
Design Arena: all code categories9941271GPT-6 Luna
Design Arena: SVGNot measured1253Only GPT-6 Luna measured
Design Arena: ASCII artNot measured1156Only GPT-6 Luna measured
LiveBench designNot measured82.5%Only GPT-6 Luna measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index025
General benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
Vals IndexNot measured52.3%Only GPT-6 Luna measured
LiveBench data analysisNot measured73.4%Only GPT-6 Luna measured
Public Benefits Bench (Vals AI)Not measured57.6%Only GPT-6 Luna measured
SAGE (Vals AI)Not measured48.1%Only GPT-6 Luna measured
MedScribe (Vals AI)Not measured83.7%Only GPT-6 Luna measured
IFBench38.3%Not measuredOnly GPT-4.1 Mini measured
Long context reasoning (AA-LCR)44.0%83.3%GPT-6 Luna
DTBench68.8%90.1%GPT-6 Luna
LMCA21.1%44.5%GPT-6 Luna
Fiction.LiveBench44.4%Not measuredOnly GPT-4.1 Mini measured
Furniture assemblyNot measured44.2%Only GPT-6 Luna measured
LMArena Text13411389GPT-6 Luna
LMArena Text: instruction following13331408GPT-6 Luna
LMArena Text: creative writing12991363GPT-6 Luna
LMArena Vision11811216GPT-6 Luna
LMArena Text: English13561393GPT-6 Luna
LMArena Text: non-English13181381GPT-6 Luna
LMArena Text: Chinese13291427GPT-6 Luna
LMArena Text: German13501376GPT-6 Luna
LMArena Text: Japanese12901369GPT-6 Luna
LMArena Text: Korean12981359GPT-6 Luna
LMArena Text: French13581408GPT-6 Luna
LMArena Text: Spanish13191391GPT-6 Luna
LMArena Text: Russian13241392GPT-6 Luna
LMArena Text: Polish13261383GPT-6 Luna
LMArena Text: multi-turn13541392GPT-6 Luna
LMArena Text: longer queries13441408GPT-6 Luna
LMArena Text: writing and language13191384GPT-6 Luna
LMArena Text: entertainment and media13001364GPT-6 Luna
LMArena Vision: English11911204GPT-6 Luna
LMArena Vision: Chinese11861266GPT-6 Luna
LMArena Vision: reading text11881225GPT-6 Luna
LMArena Vision: humor1182Not measuredOnly GPT-4.1 Mini measured
LMArena Vision: captioning1174Not measuredOnly GPT-4.1 Mini measured
LMArena Vision: recognizing things1187Not measuredOnly GPT-4.1 Mini measured
LMArena Vision: creative writing11821205GPT-6 Luna
Neither model has a result on the other 10 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-4.1 Mini and GPT-6 Luna
BenchmarkGPT-4.1 MiniGPT-6 LunaLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

GPT-4.1 Mini$0.0012Fits in one request
GPT-6 Luna$0.0003Fits in one request

GPT-6 Luna costs less

Repository review

50K input + 3K output tokens

GPT-4.1 Mini$0.025Fits in one request
GPT-6 Luna$0.0065Fits in one request

GPT-6 Luna costs less

Agent loop

200K input + 10K output tokens

GPT-4.1 Mini$0.096Fits in one request
GPT-6 Luna$0.025Fits in one request

GPT-6 Luna costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of GPT-4.1 Mini and GPT-6 Luna
SpecificationOpenAI GPT-4.1 MiniOpenAI GPT-6 Luna
MakerOpenAIOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedApril 14, 2025September 22, 2026
Context window1.05M1.05M
Input $/Mtok$0.40$0.10
Output $/Mtok$1.60$0.50
Coding index28.571.4
Independent measurements behind it22
Cost per solved task$1.818Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-4.1 Mini better than GPT-6 Luna for coding?

Pick GPT-6 Luna for coding: it scores 71.4 on the Vibe Coding Index against 28.5 for GPT-4.1 Mini. GPT-4.1 Mini is neither cheaper nor larger in context, and leads no benchmark both models were measured on.

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

GPT-4.1 Mini costs $0.40 per million input tokens and $1.60 per million output tokens; GPT-6 Luna costs $0.10 and $0.50. Cost per solved task is known for GPT-4.1 Mini only.

Which has the bigger context window, GPT-4.1 Mini or GPT-6 Luna?

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

How many benchmarks is the GPT-4.1 Mini vs GPT-6 Luna comparison based on?

55 benchmarks have a result for both models as of October 21, 2026. GPT-4.1 Mini's coding index rests on 2 independent benchmarks and GPT-6 Luna's on 2. Where only one model has a result, the page says so instead of naming a winner.

Compare next

Embed this comparison on your site

Free under CC BY 4.0, while the source link stays visible. Preview the frame · Terms and other embeds

<iframe src="https://llmbenchmark.ai/embed/compare/gpt-4-1-mini-vs-gpt-6-luna" title="GPT-4.1 Mini vs GPT-6 Luna, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/gpt-4-1-mini-vs-gpt-6-luna">LLMBenchmark.ai, GPT-4.1 Mini vs GPT-6 Luna</a></p>