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Nemotron 3 Nano 30B A3B vs o3 Mini

o3 Mini leads Nemotron 3 Nano 30B A3B on the Artificial Analysis Intelligence Index, 12.5 to 8.9, and Nemotron 3 Nano 30B A3B costs 20.0x less per output token ($0.22 vs $4.40 per million). Updated October 22, 2026; 38 benchmarks have a result for both.

Replace Nemotron 3 Nano 30B A3B Replace o3 Mini
Nemotron 3 Nano 30B A3BNVIDIA
Coding
No data
Overall
No data
Output $/M
$0.22
20
o3 MiniOpenAI
Coding
No data
Overall
38.0
Output $/M
$4.40
18
vs boards won of 38 shared

Nemotron 3 Nano 30B A3B or o3 Mini: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick Nemotron 3 Nano 30B A3B for output tokens 20.0x cheaper ($0.22 vs $4.40 per million) and a larger context window (262K against 200K tokens).

Model ANemotron 3 Nano 30B A3BNVIDIANot benchmarkedNo coding benchmarkNo cost per solved taskModel Bo3 MiniOpenAINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
38
Nemotron 3 Nano 30B A3B only
4
o3 Mini only
33
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
Nemotron 3 Nano 30B A3B not benchmarked, o3 Mini not benchmarked.
Widest category
Agentic work, 9.6 points apart on average over 1 shared benchmark.
Widest single gap
SciCode: Nemotron 3 Nano 30B A3B 30.6% against o3 Mini 42.8%, 12.2 points apart on a 0 to 100 scale.
Output price
Nemotron 3 Nano 30B A3B $0.22 against o3 Mini $4.40 per million output tokens, 20.0x apart.
Context window
Nemotron 3 Nano 30B A3B takes 262K tokens, o3 Mini 200K.

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
CategoryNemotron 3 Nano 30B A3BBarso3 MiniTies
Coding41
Intelligence01
Agentic work10
Reasoning14
Math02
Knowledge41
General109
All shared boards2018
CodingLike-for-likeSix of these boards feed the Vibe Coding Index41
Coding benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
Aider polyglotNot measured60.4%Only o3 Mini measured
SWE-bench VerifiedNot measured42.4%Only o3 Mini measured
SWE-bench LiteNot measured32.3%Only o3 Mini measured
AA Coding Index14.4Not measuredOnly Nemotron 3 Nano 30B A3B measured
LiveCodeBench (Vals AI)Not measured71.5%Only o3 Mini measured
LiveCodeBench (Artificial Analysis run)74.1%73.4%Nemotron 3 Nano 30B A3B
SciCode30.6%42.8%o3 Mini
Terminal-Bench Hard (Artificial Analysis run)13.6%6.8%Nemotron 3 Nano 30B A3B
GSO-BenchNot measured1.3%Only o3 Mini measured
WeirdMLNot measured43.7%Only o3 Mini measured
CybenchNot measured22.5%Only o3 Mini measured
LMArena Text: coding13781378Nemotron 3 Nano 30B A3B
LMArena Text: software and IT13831364Nemotron 3 Nano 30B A3B
SciCodeNot measured7.7%Only o3 Mini measured
Neither model has a result on the other 25 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
AA Intelligence Index8.912.5o3 Mini
Epoch Capabilities IndexNot measured140.2Only o3 Mini measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
AA Agentic Index1.0Not measuredOnly Nemotron 3 Nano 30B A3B measured
τ²-Bench Telecom40.9%31.3%Nemotron 3 Nano 30B A3B
Neither model has a result on the other 39 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index14
Reasoning benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
GPQA DiamondNot measured75.5%Only o3 Mini measured
GPQA Diamond (Artificial Analysis run)75.7%77.3%o3 Mini
Humanity's Last Exam (Artificial Analysis run)11.4%12.0%o3 Mini
GPQA Diamond (Epoch AI run)Not measured77.0%Only o3 Mini measured
ARC-AGINot measured34.5%Only o3 Mini measured
ARC-AGI-2Not measured3.0%Only o3 Mini measured
SimpleBenchNot measured22.8%Only o3 Mini measured
Chess puzzlesNot measured15.0%Only o3 Mini measured
Mystery game puzzlesNot measured7.0%Only o3 Mini measured
LMArena Text: hard prompts13481365o3 Mini
LMArena Text: expert13551364o3 Mini
LMArena Text: hard prompts in English13761375Nemotron 3 Nano 30B A3B
Neither model has a result on the other 10 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
AIMENot measured86.5%Only o3 Mini measured
MATH 500 (Vals AI)Not measured91.8%Only o3 Mini measured
MGSM (Vals AI)Not measured91.3%Only o3 Mini measured
AA Math Index91.0Not measuredOnly Nemotron 3 Nano 30B A3B measured
AIME 2025 (Artificial Analysis run)91.0%Not measuredOnly Nemotron 3 Nano 30B A3B measured
OTIS Mock AIMENot measured76.9%Only o3 Mini measured
FrontierMath, tiers 1 to 3Not measured18.6%Only o3 Mini measured
FrontierMath, tier 4Not measured0.0%Only o3 Mini measured
MATH level 5Not measured96.5%Only o3 Mini measured
LMArena Text: math13711396o3 Mini
LMArena Text: mathematical work13751399o3 Mini
Neither model has a result on the other 2 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index41
Knowledge benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
MMLU ProNot measured78.7%Only o3 Mini measured
LegalBench (Vals AI)Not measured71.5%Only o3 Mini measured
CorpFin (Vals AI)Not measured45.3%Only o3 Mini measured
TaxEval (Vals AI)Not measured69.4%Only o3 Mini measured
MedQA (Vals AI)Not measured94.8%Only o3 Mini measured
MMLU Pro (Artificial Analysis run)79.4%80.2%o3 Mini
SimpleQA VerifiedNot measured15.3%Only o3 Mini measured
LMArena Text: science13531339Nemotron 3 Nano 30B A3B
LMArena Text: medicine and healthcare13491330Nemotron 3 Nano 30B A3B
LMArena Text: legal and government13411328Nemotron 3 Nano 30B A3B
LMArena Text: business and finance13461313Nemotron 3 Nano 30B A3B
Neither model has a result on the other 7 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index109
General benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 MiniLeader
IFBench71.1%67.1%Nemotron 3 Nano 30B A3B
Long context reasoning (AA-LCR)38.0%43.0%o3 Mini
DTBenchNot measured68.8%Only o3 Mini measured
LMCANot measured19.0%Only o3 Mini measured
Fiction.LiveBenchNot measured50.0%Only o3 Mini measured
Creative writing (Lech Mazur)Not measured61.7%Only o3 Mini measured
LMArena Text13481337Nemotron 3 Nano 30B A3B
LMArena Text: instruction following13031337o3 Mini
LMArena Text: creative writing12691286o3 Mini
LMArena Text: English13771351Nemotron 3 Nano 30B A3B
LMArena Text: non-English13201319Nemotron 3 Nano 30B A3B
LMArena Text: Chinese13831379Nemotron 3 Nano 30B A3B
LMArena Text: German13481303Nemotron 3 Nano 30B A3B
LMArena Text: Japanese12681286o3 Mini
LMArena Text: Korean12691313o3 Mini
LMArena Text: French13961334Nemotron 3 Nano 30B A3B
LMArena Text: Spanish13761321Nemotron 3 Nano 30B A3B
LMArena Text: Russian13041304o3 Mini
LMArena Text: Polish13031294Nemotron 3 Nano 30B A3B
LMArena Text: multi-turn13191320o3 Mini
LMArena Text: longer queries13001343o3 Mini
LMArena Text: writing and language12831313o3 Mini
LMArena Text: entertainment and media12931283Nemotron 3 Nano 30B A3B
Neither model has a result on the other 23 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Nemotron 3 Nano 30B A3B and o3 Mini
BenchmarkNemotron 3 Nano 30B A3Bo3 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

Nemotron 3 Nano 30B A3B$0.0002Fits in one request
o3 Mini$0.0033Fits in one request

Nemotron 3 Nano 30B A3B costs less

Repository review

50K input + 3K output tokens

Nemotron 3 Nano 30B A3B$0.0034Fits in one request
o3 Mini$0.068Fits in one request

Nemotron 3 Nano 30B A3B costs less

Agent loop

200K input + 10K output tokens

Nemotron 3 Nano 30B A3B$0.013Fits in one request
o3 Mini$0.264Exceeds the context window

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 Nemotron 3 Nano 30B A3B and o3 Mini
SpecificationNVIDIA Nemotron 3 Nano 30B A3BOpenAI o3 Mini
MakerNVIDIAOpenAI
WeightsOpen weightsNo public weights listed
ReleasedDecember 14, 2025January 31, 2025
Context window262K200K
Input $/Mtok$0.055$1.10
Output $/Mtok$0.22$4.40
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Nemotron 3 Nano 30B A3B better than o3 Mini for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Nemotron 3 Nano 30B A3B for output tokens 20.0x cheaper ($0.22 vs $4.40 per million) and a larger context window (262K against 200K tokens).

Which is cheaper, Nemotron 3 Nano 30B A3B or o3 Mini?

Nemotron 3 Nano 30B A3B costs $0.055 per million input tokens and $0.22 per million output tokens; o3 Mini costs $1.10 and $4.40. Cost per solved task is known for neither of them.

Which has the bigger context window, Nemotron 3 Nano 30B A3B or o3 Mini?

Nemotron 3 Nano 30B A3B, with 262K tokens against 200K.

How many benchmarks is the Nemotron 3 Nano 30B A3B vs o3 Mini comparison based on?

38 benchmarks have a result for both models as of October 22, 2026. Nemotron 3 Nano 30B A3B's coding index rests on 0 independent benchmarks and o3 Mini's on 0. Where only one model has a result, the page says so instead of naming a winner.

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