Enter opens the highlighted result. Esc closes.

GPT-5.4 Nano vs GPT-5 Mini

GPT-5.4 Nano leads GPT-5 Mini on coding, 44.8 to 34.2 on the Vibe Coding Index, and GPT-5.4 Nano costs 1.6x less per output token ($1.25 vs $2.00 per million). Updated October 21, 2026; 75 benchmarks have a result for both.

Replace GPT-5.4 Nano Replace GPT-5 Mini
GPT-5.4 NanoOpenAI
Coding
44.8
Overall
45.7
Output $/M
$1.25
39
GPT-5 MiniOpenAI
Coding
34.2
Overall
43.7
Output $/M
$2.00
35
vs boards won of 75 shared, 1 tied

GPT-5.4 Nano or GPT-5 Mini: which to pick

Pick GPT-5.4 Nano for coding: it scores 44.8 on the Vibe Coding Index against 34.2 for GPT-5 Mini.

Pick GPT-5 Mini for a lower cost per solved task ($0.08 against $0.14) and work measured by LiveCodeBench (Vals AI) or WeirdML, where it leads.

Model AGPT-5.4 NanoOpenAI44.8/1002 independent benchmarks$0.14 per solved taskModel BGPT-5 MiniOpenAI34.2/1002 independent benchmarks$0.08 per solved task
Shared results
75
GPT-5.4 Nano only
10
GPT-5 Mini only
26
Like-for-like categories
7 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-5.4 Nano 44.8 from 2 benchmarks, GPT-5 Mini 34.2 from 2 benchmarks.
Widest category
Coding, 5.7 points apart on average over 8 shared benchmarks.
Widest single gap
Kagi LLM Benchmark: GPT-5.4 Nano 39.7% against GPT-5 Mini 70.3%, 30.6 points apart on a 0 to 100 scale.
Output price
GPT-5.4 Nano $1.25 against GPT-5 Mini $2.00 per million output tokens, 1.6x apart.
Context window
Both take 400K tokens.

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-5.4 NanoBarsGPT-5 MiniTies
Coding53
Intelligence20
Agentic work10
Reasoning96
Math331 tie
Knowledge39
General1614
All shared boards39351 tie
CodingLike-for-likeSix of these boards feed the Vibe Coding Index53
Coding benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
SWE-bench VerifiedNot measured59.8%Only GPT-5 Mini measured
SWE-bench MultilingualNot measured39.7%Only GPT-5 Mini measured
AA Coding Index56.1Not measuredOnly GPT-5.4 Nano measured
LiveCodeBench (Vals AI)84.0%86.6%GPT-5 Mini
SWE-bench Verified (Vals AI)69.8%60.8%GPT-5.4 Nano
Vibe Code Bench (Vals AI)26.1%14.2%GPT-5.4 Nano
Code migration (Vals AI)14.5%Not measuredOnly GPT-5.4 Nano measured
Terminal-Bench 2.1 (Vals AI)41.6%Not measuredOnly GPT-5.4 Nano measured
LiveCodeBench (Artificial Analysis run)Not measured83.8%Only GPT-5 Mini measured
SciCode47.2%39.0%GPT-5.4 Nano
Terminal-Bench Hard (Artificial Analysis run)42.4%33.3%GPT-5.4 Nano
Terminal-BenchNot measured34.8%Only GPT-5 Mini measured
WeirdML49.2%52.7%GPT-5 Mini
ALE-Bench1004.5Not measuredOnly GPT-5.4 Nano measured
LMArena Text: coding14041406GPT-5 Mini
LMArena Text: software and IT14021394GPT-5.4 Nano
Neither model has a result on the other 23 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
AA Intelligence Index20.720.6GPT-5.4 Nano
Epoch Capabilities Index146.0145.3GPT-5.4 Nano
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
AA Agentic Index16.0Not measuredOnly GPT-5.4 Nano measured
Finance Agent (Vals AI)38.2%Not measuredOnly GPT-5.4 Nano measured
Tax Agent Bench (Vals AI)5.0%Not measuredOnly GPT-5.4 Nano measured
Legal Research Bench (Vals AI)6.3%Not measuredOnly GPT-5.4 Nano measured
Excel Modeling Benchmark (Vals AI)44.8%Not measuredOnly GPT-5.4 Nano measured
τ²-Bench Telecom76.0%71.1%GPT-5.4 Nano
Vending-Bench 2Not measured-$31Only GPT-5 Mini measured
Berkeley Function Calling Leaderboard (BFCL)Not measured55.5%Only GPT-5 Mini measured
Neither model has a result on the other 33 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index96
Reasoning benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
GPQA Diamond77.5%80.3%GPT-5 Mini
MMMU Pro (Vals AI)73.6%78.9%GPT-5 Mini
GPQA Diamond (Artificial Analysis run)81.7%82.8%GPT-5 Mini
Humanity's Last Exam (Artificial Analysis run)28.3%21.5%GPT-5.4 Nano
GPQA Diamond (Epoch AI run)78.5%75.0%GPT-5.4 Nano
ARC-AGI51.5%54.3%GPT-5 Mini
ARC-AGI-25.7%4.4%GPT-5.4 Nano
Chess puzzles45.0%24.0%GPT-5.4 Nano
Mystery game puzzles9.0%10.0%GPT-5 Mini
VPCTNot measured40.2%Only GPT-5 Mini measured
LMArena Text: hard prompts13811380GPT-5.4 Nano
LMArena Text: expert13961379GPT-5.4 Nano
LMArena Text: hard prompts in English13871383GPT-5.4 Nano
LMArena Vision: diagrams12101202GPT-5.4 Nano
LMArena Vision: homework12251210GPT-5.4 Nano
Kagi LLM Benchmark39.7%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 index33
Math benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
AIME88.8%91.5%GPT-5 Mini
MATH 500 (Vals AI)Not measured94.8%Only GPT-5 Mini measured
MGSM (Vals AI)Not measured92.6%Only GPT-5 Mini measured
AA Math IndexNot measured90.7Only GPT-5 Mini measured
AIME 2025 (Artificial Analysis run)Not measured90.7%Only GPT-5 Mini measured
OTIS Mock AIME87.8%86.7%GPT-5.4 Nano
FrontierMath, tiers 1 to 344.9%46.7%GPT-5 Mini
FrontierMath, tier 412.2%12.2%Tie
ProofBench5.0%9.0%GPT-5 Mini
MATH level 5Not measured97.8%Only GPT-5 Mini measured
LMArena Text: math14051378GPT-5.4 Nano
LMArena Text: mathematical work14091380GPT-5.4 Nano
Neither model has a result on the other 1 board here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index39
Knowledge benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
MMLU Pro77.2%82.2%GPT-5 Mini
LegalBench (Vals AI)77.9%81.8%GPT-5 Mini
CaseLaw (Vals AI)51.9%68.5%GPT-5 Mini
CorpFin (Vals AI)61.2%60.2%GPT-5.4 Nano
TaxEval (Vals AI)67.4%75.2%GPT-5 Mini
MortgageTax (Vals AI)59.1%66.9%GPT-5 Mini
MedQA (Vals AI)Not measured96.1%Only GPT-5 Mini measured
MedCode (Vals AI)41.0%43.0%GPT-5 Mini
MMLU Pro (Artificial Analysis run)Not measured83.7%Only GPT-5 Mini measured
SimpleQA Verified11.7%21.6%GPT-5 Mini
LMArena Text: science13741371GPT-5.4 Nano
LMArena Text: medicine and healthcare13691380GPT-5 Mini
LMArena Text: legal and government13681375GPT-5 Mini
LMArena Text: business and finance13661358GPT-5.4 Nano
FACTS Benchmark SuiteNot measured38.6%Only GPT-5 Mini measured
Neither model has a result on the other 3 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
Design Arena: websitesNot measured1125Only GPT-5 Mini measured
Design Arena: UI componentsNot measured1106Only GPT-5 Mini measured
Design Arena: game devNot measured1130Only GPT-5 Mini measured
Design Arena: data vizNot measured1130Only GPT-5 Mini measured
Design Arena: 3DNot measured1037Only GPT-5 Mini measured
Design Arena: all code categoriesNot measured1115Only GPT-5 Mini measured
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 index1614
General benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 NanoGPT-5 MiniLeader
SAGE (Vals AI)38.1%43.0%GPT-5 Mini
MedScribe (Vals AI)77.1%80.6%GPT-5 Mini
Vals Multimodal Index47.6%Not measuredOnly GPT-5.4 Nano measured
IFBench75.9%75.4%GPT-5.4 Nano
Long context reasoning (AA-LCR)76.7%72.3%GPT-5.4 Nano
DTBench80.3%80.5%GPT-5 Mini
LMCA36.9%34.2%GPT-5.4 Nano
Fiction.LiveBenchNot measured69.4%Only GPT-5 Mini measured
Creative writing (Lech Mazur)Not measured83.1%Only GPT-5 Mini measured
LMArena Text13721373GPT-5 Mini
LMArena Text: instruction following13621357GPT-5.4 Nano
LMArena Text: creative writing13151325GPT-5 Mini
LMArena Vision11961202GPT-5 Mini
LMArena Text: English13811379GPT-5.4 Nano
LMArena Text: non-English13591363GPT-5 Mini
LMArena Text: Chinese13911386GPT-5.4 Nano
LMArena Text: German13681366GPT-5.4 Nano
LMArena Text: Japanese13431341GPT-5.4 Nano
LMArena Text: Korean13211308GPT-5.4 Nano
LMArena Text: French13951386GPT-5.4 Nano
LMArena Text: Spanish13711354GPT-5.4 Nano
LMArena Text: Russian13631362GPT-5.4 Nano
LMArena Text: Polish13661378GPT-5 Mini
LMArena Text: multi-turn13821363GPT-5.4 Nano
LMArena Text: longer queries13651355GPT-5.4 Nano
LMArena Text: writing and language13381344GPT-5 Mini
LMArena Text: entertainment and media13251340GPT-5 Mini
LMArena Vision: English12021216GPT-5 Mini
LMArena Vision: Chinese12321214GPT-5.4 Nano
LMArena Vision: reading text12041199GPT-5.4 Nano
LMArena Vision: humor11611205GPT-5 Mini
LMArena Vision: captioningNot measured1217Only GPT-5 Mini measured
LMArena Vision: recognizing things11411226GPT-5 Mini
LMArena Vision: creative writing11591181GPT-5 Mini
Neither model has a result on the other 12 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5.4 Nano and GPT-5 Mini
BenchmarkGPT-5.4 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-5.4 Nano$0.0008Fits in one request
GPT-5 Mini$0.0013Fits in one request

GPT-5.4 Nano costs less

Repository review

50K input + 3K output tokens

GPT-5.4 Nano$0.014Fits in one request
GPT-5 Mini$0.018Fits in one request

GPT-5.4 Nano costs less

Agent loop

200K input + 10K output tokens

GPT-5.4 Nano$0.052Fits in one request
GPT-5 Mini$0.070Fits in one request

GPT-5.4 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-5.4 Nano and GPT-5 Mini
SpecificationOpenAI GPT-5.4 NanoOpenAI GPT-5 Mini
MakerOpenAIOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedMarch 17, 2026August 7, 2025
Context window400K400K
Input $/Mtok$0.20$0.25
Output $/Mtok$1.25$2.00
Coding index44.834.2
Independent measurements behind it22
Cost per solved task$0.14$0.08
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.4 Nano better than GPT-5 Mini for coding?

Pick GPT-5.4 Nano for coding: it scores 44.8 on the Vibe Coding Index against 34.2 for GPT-5 Mini. Pick GPT-5 Mini for a lower cost per solved task ($0.08 against $0.14) and work measured by LiveCodeBench (Vals AI) or WeirdML, where it leads.

Which is cheaper, GPT-5.4 Nano or GPT-5 Mini?

GPT-5.4 Nano costs $0.20 per million input tokens and $1.25 per million output tokens; GPT-5 Mini costs $0.25 and $2.00. Per solved SWE-bench Verified task, GPT-5.4 Nano costs $0.14 and GPT-5 Mini $0.08.

Which has the bigger context window, GPT-5.4 Nano or GPT-5 Mini?

Neither: both take 400K tokens.

How many benchmarks is the GPT-5.4 Nano vs GPT-5 Mini comparison based on?

75 benchmarks have a result for both models as of October 21, 2026. GPT-5.4 Nano's coding index rests on 2 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.

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-5-4-nano-vs-gpt-5-mini" title="GPT-5.4 Nano vs GPT-5 Mini, 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-5-4-nano-vs-gpt-5-mini">LLMBenchmark.ai, GPT-5.4 Nano vs GPT-5 Mini</a></p>