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GPT-4.1 Nano vs GPT-5 Mini

GPT-5 Mini leads GPT-4.1 Nano on the Artificial Analysis Intelligence Index, 20.6 to 7.8, and GPT-4.1 Nano costs 5.0x less per output token ($0.40 vs $2.00 per million). Updated October 22, 2026; 69 benchmarks have a result for both.

Replace GPT-4.1 Nano Replace GPT-5 Mini
GPT-4.1 NanoOpenAI
Coding
No data
Overall
24.7
Output $/M
$0.40
0
GPT-5 MiniOpenAI
Coding
34.2
Overall
43.7
Output $/M
$2.00
69
vs boards won of 69 shared

GPT-4.1 Nano or GPT-5 Mini: which to pick

Only GPT-5 Mini has a coding score, 34.2 on the Vibe Coding Index; GPT-4.1 Nano has none, so the two cannot be ranked on coding.

Pick GPT-4.1 Nano for output tokens 5.0x cheaper ($0.40 vs $2.00 per million) and a larger context window (1.05M against 400K tokens).

Model AGPT-4.1 NanoOpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BGPT-5 MiniOpenAI34.2/1002 independent benchmarks$0.08 per solved task
Shared results
69
GPT-4.1 Nano only
2
GPT-5 Mini only
32
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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 Nano not benchmarked, GPT-5 Mini 34.2 from 2 benchmarks.
Widest category
Math, 39.6 points apart on average over 9 shared benchmarks.
Widest single gap
AA Math Index: GPT-4.1 Nano 24.0 against GPT-5 Mini 90.7, 66.7 points apart on a 0 to 100 scale.
Output price
GPT-4.1 Nano $0.40 against GPT-5 Mini $2.00 per million output tokens, 5.0x apart.
Context window
GPT-4.1 Nano takes 1.05M tokens, GPT-5 Mini 400K.

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 NanoBarsGPT-5 MiniTies
Coding06
Intelligence02
Agentic work02
Reasoning012
Math09
Knowledge012
Web design06
General020
All shared boards069
CodingLike-for-likeSix of these boards feed the Vibe Coding Index06
Coding benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
Aider polyglot8.9%Not measuredOnly GPT-4.1 Nano measured
SWE-bench VerifiedNot measured59.8%Only GPT-5 Mini measured
SWE-bench MultilingualNot measured39.7%Only GPT-5 Mini measured
AA Coding Index11.1Not measuredOnly GPT-4.1 Nano measured
LiveCodeBench (Vals AI)42.7%86.6%GPT-5 Mini
SWE-bench Verified (Vals AI)Not measured60.8%Only GPT-5 Mini measured
Vibe Code Bench (Vals AI)Not measured14.2%Only GPT-5 Mini measured
LiveCodeBench (Artificial Analysis run)32.6%83.8%GPT-5 Mini
SciCodeNot measured39.0%Only GPT-5 Mini measured
Terminal-Bench Hard (Artificial Analysis run)3.8%33.3%GPT-5 Mini
Terminal-BenchNot measured34.8%Only GPT-5 Mini measured
WeirdML19.0%52.7%GPT-5 Mini
LMArena Text: coding13061406GPT-5 Mini
LMArena Text: software and IT13051394GPT-5 Mini
Neither model has a result on the other 25 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
AA Intelligence Index7.820.6GPT-5 Mini
Epoch Capabilities Index129.5145.3GPT-5 Mini
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
τ²-Bench Telecom17.3%71.1%GPT-5 Mini
Vending-Bench 2Not measured-$31Only GPT-5 Mini measured
Berkeley Function Calling Leaderboard (BFCL)33.1%55.5%GPT-5 Mini
Neither model has a result on the other 38 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index012
Reasoning benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
GPQA Diamond50.8%80.3%GPT-5 Mini
MMMU Pro (Vals AI)55.0%78.9%GPT-5 Mini
GPQA Diamond (Artificial Analysis run)51.2%82.8%GPT-5 Mini
Humanity's Last Exam (Artificial Analysis run)3.8%21.5%GPT-5 Mini
GPQA Diamond (Epoch AI run)48.9%75.0%GPT-5 Mini
ARC-AGI0.0%54.3%GPT-5 Mini
ARC-AGI-20.0%4.4%GPT-5 Mini
Chess puzzles0.0%24.0%GPT-5 Mini
Mystery game puzzlesNot measured10.0%Only GPT-5 Mini measured
VPCTNot measured40.2%Only GPT-5 Mini measured
LMArena Text: hard prompts12861380GPT-5 Mini
LMArena Text: expert12711379GPT-5 Mini
LMArena Text: hard prompts in English12931383GPT-5 Mini
LMArena Vision: diagramsNot measured1202Only GPT-5 Mini measured
LMArena Vision: homeworkNot measured1210Only GPT-5 Mini measured
Kagi LLM Benchmark33.3%70.3%GPT-5 Mini
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index09
Math benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
AIME26.5%91.5%GPT-5 Mini
MATH 500 (Vals AI)80.2%94.8%GPT-5 Mini
MGSM (Vals AI)69.3%92.6%GPT-5 Mini
AA Math Index24.090.7GPT-5 Mini
AIME 2025 (Artificial Analysis run)24.0%90.7%GPT-5 Mini
OTIS Mock AIME28.9%86.7%GPT-5 Mini
FrontierMath, tiers 1 to 3Not measured46.7%Only GPT-5 Mini measured
FrontierMath, tier 4Not measured12.2%Only GPT-5 Mini measured
ProofBenchNot measured9.0%Only GPT-5 Mini measured
MATH level 570.0%97.8%GPT-5 Mini
LMArena Text: math12741378GPT-5 Mini
LMArena Text: mathematical work12741380GPT-5 Mini
Neither model has a result on the other 1 board here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index012
Knowledge benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
MMLU Pro63.5%82.2%GPT-5 Mini
LegalBench (Vals AI)61.1%81.8%GPT-5 Mini
CaseLaw (Vals AI)Not measured68.5%Only GPT-5 Mini measured
CorpFin (Vals AI)42.1%60.2%GPT-5 Mini
TaxEval (Vals AI)60.8%75.2%GPT-5 Mini
MortgageTax (Vals AI)52.8%66.9%GPT-5 Mini
MedQA (Vals AI)68.2%96.1%GPT-5 Mini
MedCode (Vals AI)Not measured43.0%Only GPT-5 Mini measured
MMLU Pro (Artificial Analysis run)65.7%83.7%GPT-5 Mini
SimpleQA Verified6.0%21.6%GPT-5 Mini
LMArena Text: science12971371GPT-5 Mini
LMArena Text: medicine and healthcare12761380GPT-5 Mini
LMArena Text: legal and government13001375GPT-5 Mini
LMArena Text: business and finance12671358GPT-5 Mini
FACTS Benchmark SuiteNot measured38.6%Only GPT-5 Mini measured
Neither model has a result on the other 3 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index06
Web design benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
Design Arena: websites9721125GPT-5 Mini
Design Arena: UI components9131103GPT-5 Mini
Design Arena: game dev9701129GPT-5 Mini
Design Arena: data viz8911131GPT-5 Mini
Design Arena: 3D9241036GPT-5 Mini
Design Arena: all code categories9621114GPT-5 Mini
Design Arena: SVGNot measured1091Only GPT-5 Mini measured
Design Arena: ASCII artNot measured1125Only GPT-5 Mini measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index020
General benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
SAGE (Vals AI)Not measured43.0%Only GPT-5 Mini measured
MedScribe (Vals AI)Not measured80.6%Only GPT-5 Mini measured
IFBench32.0%75.4%GPT-5 Mini
Long context reasoning (AA-LCR)20.3%72.3%GPT-5 Mini
DTBench52.5%80.5%GPT-5 Mini
LMCA5.5%34.2%GPT-5 Mini
Fiction.LiveBench25.0%69.4%GPT-5 Mini
Creative writing (Lech Mazur)Not measured83.1%Only GPT-5 Mini measured
LMArena Text12851373GPT-5 Mini
LMArena Text: instruction following12661357GPT-5 Mini
LMArena Text: creative writing12601325GPT-5 Mini
LMArena Vision10631202GPT-5 Mini
LMArena Text: English13031379GPT-5 Mini
LMArena Text: non-English12601363GPT-5 Mini
LMArena Text: Chinese12701386GPT-5 Mini
LMArena Text: German12881366GPT-5 Mini
LMArena Text: Japanese11981341GPT-5 Mini
LMArena Text: KoreanNot measured1308Only GPT-5 Mini measured
LMArena Text: FrenchNot measured1386Only GPT-5 Mini measured
LMArena Text: SpanishNot measured1354Only GPT-5 Mini measured
LMArena Text: Russian12611362GPT-5 Mini
LMArena Text: PolishNot measured1378Only GPT-5 Mini measured
LMArena Text: multi-turn12771363GPT-5 Mini
LMArena Text: longer queries12831355GPT-5 Mini
LMArena Text: writing and language12611344GPT-5 Mini
LMArena Text: entertainment and media12431340GPT-5 Mini
LMArena Vision: English11011216GPT-5 Mini
LMArena Vision: ChineseNot measured1214Only GPT-5 Mini measured
LMArena Vision: reading textNot measured1199Only GPT-5 Mini measured
LMArena Vision: humorNot measured1205Only GPT-5 Mini measured
LMArena Vision: captioningNot measured1217Only GPT-5 Mini measured
LMArena Vision: recognizing thingsNot measured1226Only GPT-5 Mini measured
LMArena Vision: creative writingNot measured1181Only GPT-5 Mini measured
Neither model has a result on the other 13 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-4.1 Nano and GPT-5 Mini
BenchmarkGPT-4.1 NanoGPT-5 MiniLeader
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 Nano$0.0003Fits in one request
GPT-5 Mini$0.0013Fits in one request

GPT-4.1 Nano costs less

Repository review

50K input + 3K output tokens

GPT-4.1 Nano$0.0062Fits in one request
GPT-5 Mini$0.018Fits in one request

GPT-4.1 Nano costs less

Agent loop

200K input + 10K output tokens

GPT-4.1 Nano$0.024Fits in one request
GPT-5 Mini$0.070Fits in one request

GPT-4.1 Nano 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 Nano and GPT-5 Mini
SpecificationOpenAI GPT-4.1 NanoOpenAI GPT-5 Mini
MakerOpenAIOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedApril 14, 2025August 7, 2025
Context window1.05M400K
Input $/Mtok$0.10$0.25
Output $/Mtok$0.40$2.00
Coding indexNot benchmarked34.2
Independent measurements behind it02
Cost per solved taskNot computable$0.08
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-4.1 Nano better than GPT-5 Mini for coding?

Only GPT-5 Mini has a coding score, 34.2 on the Vibe Coding Index; GPT-4.1 Nano has none, so the two cannot be ranked on coding. Pick GPT-4.1 Nano for output tokens 5.0x cheaper ($0.40 vs $2.00 per million) and a larger context window (1.05M against 400K tokens).

Which is cheaper, GPT-4.1 Nano or GPT-5 Mini?

GPT-4.1 Nano costs $0.10 per million input tokens and $0.40 per million output tokens; GPT-5 Mini costs $0.25 and $2.00. Cost per solved task is known for GPT-5 Mini only.

Which has the bigger context window, GPT-4.1 Nano or GPT-5 Mini?

GPT-4.1 Nano, with 1.05M tokens against 400K.

How many benchmarks is the GPT-4.1 Nano vs GPT-5 Mini comparison based on?

69 benchmarks have a result for both models as of October 22, 2026. GPT-4.1 Nano's coding index rests on 0 independent benchmarks and GPT-5 Mini's on 2. Where only one model has a result, the page says so instead of naming a winner.

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