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GPT-5 vs Nemotron 3 Nano 30B A3B

GPT-5 leads Nemotron 3 Nano 30B A3B on the Artificial Analysis Intelligence Index, 23.0 to 8.9, and Nemotron 3 Nano 30B A3B costs 45.5x less per output token ($0.22 vs $10.00 per million). Updated October 22, 2026; 40 benchmarks have a result for both.

Replace GPT-5 Replace Nemotron 3 Nano 30B A3B
GPT-5OpenAI
Coding
38.8
Overall
51.5
Output $/M
$10.00
40
Nemotron 3 Nano 30B A3BNVIDIA
Coding
No data
Overall
No data
Output $/M
$0.22
0
vs boards won of 40 shared

GPT-5 or Nemotron 3 Nano 30B A3B: which to pick

Only GPT-5 has a coding score, 38.8 on the Vibe Coding Index; Nemotron 3 Nano 30B A3B has none, so the two cannot be ranked on coding.

Pick Nemotron 3 Nano 30B A3B for output tokens 45.5x cheaper ($0.22 vs $10.00 per million).

Model AGPT-5OpenAI38.8/1003 independent benchmarks$0.39 per solved taskModel BNemotron 3 Nano 30B A3BNVIDIANot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
40
GPT-5 only
77
Nemotron 3 Nano 30B A3B only
2
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 38.8 from 3 benchmarks, Nemotron 3 Nano 30B A3B not benchmarked.
Widest category
Agentic work, 45.6 points apart on average over 1 shared benchmark.
Widest single gap
τ²-Bench Telecom: GPT-5 86.5% against Nemotron 3 Nano 30B A3B 40.9%, 45.6 points apart on a 0 to 100 scale.
Output price
GPT-5 $10.00 against Nemotron 3 Nano 30B A3B $0.22 per million output tokens, 45.5x apart.
Context window
GPT-5 takes 400K tokens, Nemotron 3 Nano 30B A3B 262K.

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-5BarsNemotron 3 Nano 30B A3BTies
Coding50
Intelligence10
Agentic work10
Reasoning50
Math40
Knowledge50
General190
All shared boards400
CodingLike-for-likeSix of these boards feed the Vibe Coding Index50
Coding benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
Aider polyglot88.0%Not measuredOnly GPT-5 measured
SWE-bench Verified74.4%Not measuredOnly GPT-5 measured
LMArena WebDev1418Not measuredOnly GPT-5 measured
AA Coding Index37.814.4GPT-5
LiveCodeBench (Vals AI)85.9%Not measuredOnly GPT-5 measured
SWE-bench Verified (Vals AI)69.0%Not measuredOnly GPT-5 measured
Vibe Code Bench (Vals AI)20.1%Not measuredOnly GPT-5 measured
LiveCodeBench (Artificial Analysis run)84.6%74.1%GPT-5
SciCodeNot measured30.6%Only Nemotron 3 Nano 30B A3B measured
Terminal-Bench Hard (Artificial Analysis run)37.9%13.6%GPT-5
Terminal-Bench49.6%Not measuredOnly GPT-5 measured
GSO-Bench6.9%Not measuredOnly GPT-5 measured
WeirdML60.7%Not measuredOnly GPT-5 measured
ALE-Bench807.6Not measuredOnly GPT-5 measured
LMArena Text: coding14361378GPT-5
LMArena Text: software and IT14201383GPT-5
LMArena WebDev: HTML1427Not measuredOnly GPT-5 measured
SciCode0.0%Not measuredOnly GPT-5 measured
Neither model has a result on the other 25 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
AA Intelligence Index23.08.9GPT-5
Epoch Capabilities Index150.0Not measuredOnly GPT-5 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
AA Agentic IndexNot measured1.0Only Nemotron 3 Nano 30B A3B measured
τ²-Bench Telecom86.5%40.9%GPT-5
METR time horizons69.6%Not measuredOnly GPT-5 measured
Remote Labor Index1.7%Not measuredOnly GPT-5 measured
GDPval34.8%Not measuredOnly GPT-5 measured
BALROG32.8%Not measuredOnly GPT-5 measured
DeepResearch Bench49.6%Not measuredOnly GPT-5 measured
BrowseComp-Plus80.0%Not measuredOnly GPT-5 measured
Neither model has a result on the other 34 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index50
Reasoning benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
GPQA Diamond85.6%Not measuredOnly GPT-5 measured
MMMU Pro (Vals AI)81.5%Not measuredOnly GPT-5 measured
GPQA Diamond (Artificial Analysis run)85.4%75.7%GPT-5
Humanity's Last Exam (Artificial Analysis run)28.5%11.4%GPT-5
GPQA Diamond (Epoch AI run)86.2%Not measuredOnly GPT-5 measured
ARC-AGI65.7%Not measuredOnly GPT-5 measured
ARC-AGI-29.9%Not measuredOnly GPT-5 measured
SimpleBench56.7%Not measuredOnly GPT-5 measured
Chess puzzles36.0%Not measuredOnly GPT-5 measured
Mystery game puzzles23.0%Not measuredOnly GPT-5 measured
EBR-bench12.7%Not measuredOnly GPT-5 measured
VPCT66.0%Not measuredOnly GPT-5 measured
LMArena Text: hard prompts14151348GPT-5
LMArena Text: expert14191355GPT-5
LMArena Text: hard prompts in English14191376GPT-5
LMArena Vision: diagrams1252Not measuredOnly GPT-5 measured
LMArena Vision: homework1278Not measuredOnly GPT-5 measured
Kagi LLM Benchmark72.7%Not measuredOnly GPT-5 measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
AIME93.4%Not measuredOnly GPT-5 measured
MATH 500 (Vals AI)96.0%Not measuredOnly GPT-5 measured
MGSM (Vals AI)92.8%Not measuredOnly GPT-5 measured
AA Math Index94.391.0GPT-5
AIME 2025 (Artificial Analysis run)94.3%91.0%GPT-5
OTIS Mock AIME91.4%Not measuredOnly GPT-5 measured
FrontierMath, tiers 1 to 355.4%Not measuredOnly GPT-5 measured
FrontierMath, tier 422.0%Not measuredOnly GPT-5 measured
ProofBench18.0%Not measuredOnly GPT-5 measured
MATH level 598.1%Not measuredOnly GPT-5 measured
LMArena Text: math14071371GPT-5
LMArena Text: mathematical work14051375GPT-5
MathArena17.1%Not measuredOnly GPT-5 measured
Neither model has a result on the other 1 board here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
Knowledge benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
MMLU Pro86.5%Not measuredOnly GPT-5 measured
LegalBench (Vals AI)86.0%Not measuredOnly GPT-5 measured
CaseLaw (Vals AI)66.5%Not measuredOnly GPT-5 measured
CorpFin (Vals AI)61.1%Not measuredOnly GPT-5 measured
TaxEval (Vals AI)73.4%Not measuredOnly GPT-5 measured
MortgageTax (Vals AI)65.5%Not measuredOnly GPT-5 measured
MedQA (Vals AI)96.3%Not measuredOnly GPT-5 measured
MedCode (Vals AI)49.6%Not measuredOnly GPT-5 measured
MMLU Pro (Artificial Analysis run)87.1%79.4%GPT-5
SimpleQA Verified50.1%Not measuredOnly GPT-5 measured
GeoBench81.0%Not measuredOnly GPT-5 measured
LMArena Text: science14161353GPT-5
LMArena Text: medicine and healthcare14131349GPT-5
LMArena Text: legal and government14311341GPT-5
LMArena Text: business and finance14001346GPT-5
FACTS Benchmark Suite56.5%Not measuredOnly GPT-5 measured
PRBench Finance51.3%Not measuredOnly GPT-5 measured
PRBench Legal49.0%Not measuredOnly GPT-5 measured
Neither model has a result on the other 2 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
Design Arena: websites1184Not measuredOnly GPT-5 measured
Design Arena: UI components1177Not measuredOnly GPT-5 measured
Design Arena: game dev1185Not measuredOnly GPT-5 measured
Design Arena: data viz1221Not measuredOnly GPT-5 measured
Design Arena: 3D1055Not measuredOnly GPT-5 measured
Design Arena: all code categories1167Not measuredOnly GPT-5 measured
Design Arena: SVG1188Not measuredOnly GPT-5 measured
Design Arena: ASCII art1141Not measuredOnly GPT-5 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index190
General benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
SAGE (Vals AI)43.7%Not measuredOnly GPT-5 measured
MedScribe (Vals AI)83.7%Not measuredOnly GPT-5 measured
IFBench73.1%71.1%GPT-5
Long context reasoning (AA-LCR)78.2%38.0%GPT-5
DTBench90.7%Not measuredOnly GPT-5 measured
LMCA40.0%Not measuredOnly GPT-5 measured
Fiction.LiveBench97.2%Not measuredOnly GPT-5 measured
Creative writing (Lech Mazur)86.0%Not measuredOnly GPT-5 measured
LMArena Text14061348GPT-5
LMArena Text: instruction following13881303GPT-5
LMArena Text: creative writing13651269GPT-5
LMArena Vision1232Not measuredOnly GPT-5 measured
LMArena Text: English14091377GPT-5
LMArena Text: non-English13971320GPT-5
LMArena Text: Chinese14221383GPT-5
LMArena Text: German14161348GPT-5
LMArena Text: Japanese14091268GPT-5
LMArena Text: Korean13601269GPT-5
LMArena Text: French14091396GPT-5
LMArena Text: Spanish13991376GPT-5
LMArena Text: Russian14071304GPT-5
LMArena Text: Polish14311303GPT-5
LMArena Text: multi-turn14261319GPT-5
LMArena Text: longer queries13991300GPT-5
LMArena Text: writing and language13841283GPT-5
LMArena Text: entertainment and media13791293GPT-5
LMArena Vision: English1231Not measuredOnly GPT-5 measured
LMArena Vision: Chinese1267Not measuredOnly GPT-5 measured
LMArena Vision: reading text1246Not measuredOnly GPT-5 measured
LMArena Vision: humor1219Not measuredOnly GPT-5 measured
LMArena Vision: captioning1212Not measuredOnly GPT-5 measured
LMArena Vision: recognizing things1263Not measuredOnly GPT-5 measured
LMArena Vision: creative writing1210Not measuredOnly GPT-5 measured
MultiChallenge63.2%Not measuredOnly GPT-5 measured
Neither model has a result on the other 14 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5 and Nemotron 3 Nano 30B A3B
BenchmarkGPT-5Nemotron 3 Nano 30B A3BLeader
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$0.0063Fits in one request
Nemotron 3 Nano 30B A3B$0.0002Fits in one request

Nemotron 3 Nano 30B A3B costs less

Repository review

50K input + 3K output tokens

GPT-5$0.092Fits in one request
Nemotron 3 Nano 30B A3B$0.0034Fits in one request

Nemotron 3 Nano 30B A3B costs less

Agent loop

200K input + 10K output tokens

GPT-5$0.350Fits in one request
Nemotron 3 Nano 30B A3B$0.013Fits in one request

Nemotron 3 Nano 30B A3B 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 and Nemotron 3 Nano 30B A3B
SpecificationOpenAI GPT-5NVIDIA Nemotron 3 Nano 30B A3B
MakerOpenAINVIDIA
WeightsNo public weights listedOpen weights
ReleasedAugust 7, 2025December 14, 2025
Context window400K262K
Input $/Mtok$1.25$0.055
Output $/Mtok$10.00$0.22
Coding index38.8Not benchmarked
Independent measurements behind it30
Cost per solved task$0.39Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5 better than Nemotron 3 Nano 30B A3B for coding?

Only GPT-5 has a coding score, 38.8 on the Vibe Coding Index; Nemotron 3 Nano 30B A3B has none, so the two cannot be ranked on coding. Pick Nemotron 3 Nano 30B A3B for output tokens 45.5x cheaper ($0.22 vs $10.00 per million).

Which is cheaper, GPT-5 or Nemotron 3 Nano 30B A3B?

GPT-5 costs $1.25 per million input tokens and $10.00 per million output tokens; Nemotron 3 Nano 30B A3B costs $0.055 and $0.22. Cost per solved task is known for GPT-5 only.

Which has the bigger context window, GPT-5 or Nemotron 3 Nano 30B A3B?

GPT-5, with 400K tokens against 262K.

How many benchmarks is the GPT-5 vs Nemotron 3 Nano 30B A3B comparison based on?

40 benchmarks have a result for both models as of October 22, 2026. GPT-5's coding index rests on 3 independent benchmarks and Nemotron 3 Nano 30B A3B's on 0. Where only one model has a result, the page says so instead of naming a winner.

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