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Nemotron 3 Ultra vs Sonar Pro

Nemotron 3 Ultra leads Sonar Pro on the Artificial Analysis Intelligence Index, 22.9 to 7.6, and Nemotron 3 Ultra costs 6.3x less per output token ($2.40 vs $15.00 per million). Updated October 22, 2026; 3 benchmarks have a result for both.

Nemotron 3 UltraNVIDIA
Coding
30.0
Overall
53.1
Output $/M
$2.40
3
Sonar ProPerplexity
Coding
No data
Overall
No data
Output $/M
$15.00
0
vs boards won of 3 shared

Nemotron 3 Ultra or Sonar Pro: which to pick

Only Nemotron 3 Ultra has a coding score, 30.0 on the Vibe Coding Index; Sonar Pro has none, so the two cannot be ranked on coding.

Compare them on price, context and the boards below.

Shared results
3
Nemotron 3 Ultra only
67
Sonar Pro only
2
Like-for-like categories
2 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 Ultra 30.0 from 3 benchmarks, Sonar Pro not benchmarked.
Widest category
Reasoning, 25.4 points apart on average over 2 shared benchmarks.
Widest single gap
GPQA Diamond (Artificial Analysis run): Nemotron 3 Ultra 86.7% against Sonar Pro 57.8%, 28.9 points apart on a 0 to 100 scale.
Output price
Nemotron 3 Ultra $2.40 against Sonar Pro $15.00 per million output tokens, 6.3x apart.
Context window
Nemotron 3 Ultra takes 262K tokens, Sonar Pro 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 UltraBarsSonar ProTies
Intelligence10
Reasoning20
All shared boards30
CodingDirectional onlySix of these boards feed the Vibe Coding Index14 boards, none shared
Coding benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
AA Coding Index49.3Not measuredOnly Nemotron 3 Ultra measured
LiveCodeBench (Vals AI)86.0%Not measuredOnly Nemotron 3 Ultra measured
SWE-bench Verified (Vals AI)69.0%Not measuredOnly Nemotron 3 Ultra measured
Vibe Code Bench (Vals AI)7.6%Not measuredOnly Nemotron 3 Ultra measured
Code migration (Vals AI)4.9%Not measuredOnly Nemotron 3 Ultra measured
ProgramBench (Vals AI)0.0%Not measuredOnly Nemotron 3 Ultra measured
Terminal-Bench 2.1 (Vals AI)50.9%Not measuredOnly Nemotron 3 Ultra measured
LiveCodeBench (Artificial Analysis run)Not measured27.5%Only Sonar Pro measured
SciCode40.3%Not measuredOnly Nemotron 3 Ultra measured
Terminal-Bench Hard (Artificial Analysis run)36.4%Not measuredOnly Nemotron 3 Ultra measured
FrontierCode13.6%Not measuredOnly Nemotron 3 Ultra measured
WeirdML43.5%Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: coding1468Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: software and IT1468Not measuredOnly Nemotron 3 Ultra 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 Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
AA Intelligence Index22.97.6Nemotron 3 Ultra
Epoch Capabilities Index146.0Not measuredOnly Nemotron 3 Ultra measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Agentic work benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
AA Agentic Index20.1Not measuredOnly Nemotron 3 Ultra measured
Finance Agent (Vals AI)37.7%Not measuredOnly Nemotron 3 Ultra measured
Legal Research Bench (Vals AI)15.4%Not measuredOnly Nemotron 3 Ultra measured
Excel Modeling Benchmark (Vals AI)31.7%Not measuredOnly Nemotron 3 Ultra measured
τ²-Bench Telecom83.3%Not measuredOnly Nemotron 3 Ultra measured
APEX-Agents22.7%Not measuredOnly Nemotron 3 Ultra measured
Neither model has a result on the other 35 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index20
Reasoning benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
GPQA Diamond86.1%Not measuredOnly Nemotron 3 Ultra measured
GPQA Diamond (Artificial Analysis run)86.7%57.8%Nemotron 3 Ultra
Humanity's Last Exam (Artificial Analysis run)28.4%6.6%Nemotron 3 Ultra
GPQA Diamond (Epoch AI run)85.4%Not measuredOnly Nemotron 3 Ultra measured
Mystery game puzzles20.0%Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: hard prompts1452Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: expert1472Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: hard prompts in English1453Not measuredOnly Nemotron 3 Ultra measured
Neither model has a result on the other 14 boards here
MathDirectional onlyPublic boards, shown as published, kept out of the index4 boards, none shared
Math benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
OTIS Mock AIME86.7%Not measuredOnly Nemotron 3 Ultra measured
ProofBench2.0%Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: math1457Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: mathematical work1461Not measuredOnly Nemotron 3 Ultra measured
Neither model has a result on the other 9 boards here
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index10 boards, none shared
Knowledge benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
MMLU Pro85.8%Not measuredOnly Nemotron 3 Ultra measured
LegalBench (Vals AI)82.1%Not measuredOnly Nemotron 3 Ultra measured
CorpFin (Vals AI)65.5%Not measuredOnly Nemotron 3 Ultra measured
TaxEval (Vals AI)73.1%Not measuredOnly Nemotron 3 Ultra measured
MedCode (Vals AI)38.6%Not measuredOnly Nemotron 3 Ultra measured
MMLU Pro (Artificial Analysis run)Not measured75.5%Only Sonar Pro measured
LMArena Text: science1465Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: medicine and healthcare1456Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: legal and government1452Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: business and finance1434Not measuredOnly Nemotron 3 Ultra measured
Neither model has a result on the other 8 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
Design Arena: websites1145Not measuredOnly Nemotron 3 Ultra measured
Design Arena: UI components1136Not measuredOnly Nemotron 3 Ultra measured
Design Arena: game dev1138Not measuredOnly Nemotron 3 Ultra measured
Design Arena: data viz1142Not measuredOnly Nemotron 3 Ultra measured
Design Arena: 3D1131Not measuredOnly Nemotron 3 Ultra measured
Design Arena: all code categories1146Not measuredOnly Nemotron 3 Ultra measured
Design Arena: SVG1069Not measuredOnly Nemotron 3 Ultra measured
Design Arena: ASCII art1100Not measuredOnly Nemotron 3 Ultra measured
Neither model has a result on the other 1 board here
GeneralDirectional onlyPublic boards, shown as published, kept out of the index20 boards, none shared
General benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
IFBench81.4%Not measuredOnly Nemotron 3 Ultra measured
Long context reasoning (AA-LCR)79.3%Not measuredOnly Nemotron 3 Ultra measured
DTBench90.1%Not measuredOnly Nemotron 3 Ultra measured
LMCA36.9%Not measuredOnly Nemotron 3 Ultra measured
LMArena Text1445Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: instruction following1418Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: creative writing1399Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: English1455Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: non-English1427Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: Chinese1497Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: German1472Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: Korean1384Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: French1472Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: Spanish1455Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: Russian1417Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: Polish1385Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: multi-turn1411Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: longer queries1437Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: writing and language1406Not measuredOnly Nemotron 3 Ultra measured
LMArena Text: entertainment and media1397Not measuredOnly Nemotron 3 Ultra measured
Neither model has a result on the other 26 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Nemotron 3 Ultra and Sonar Pro
BenchmarkNemotron 3 UltraSonar ProLeader
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 Ultra$0.0018Fits in one request
Sonar Pro$0.011Fits in one request

Nemotron 3 Ultra costs less

Repository review

50K input + 3K output tokens

Nemotron 3 Ultra$0.037Fits in one request
Sonar Pro$0.195Fits in one request

Nemotron 3 Ultra costs less

Agent loop

200K input + 10K output tokens

Nemotron 3 Ultra$0.144Fits in one request
Sonar Pro$0.750Exceeds the context window

Nemotron 3 Ultra 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 Ultra and Sonar Pro
SpecificationNVIDIA Nemotron 3 UltraPerplexity Sonar Pro
MakerNVIDIAPerplexity
WeightsOpen weightsNo public weights listed
ReleasedJune 4, 2026March 7, 2025
Context window262K200K
Input $/Mtok$0.60$3.00
Output $/Mtok$2.40$15.00
Coding index30.0Not benchmarked
Independent measurements behind it30
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Nemotron 3 Ultra better than Sonar Pro for coding?

Only Nemotron 3 Ultra has a coding score, 30.0 on the Vibe Coding Index; Sonar Pro has none, so the two cannot be ranked on coding. Compare them on price, context and the boards below.

Which is cheaper, Nemotron 3 Ultra or Sonar Pro?

Nemotron 3 Ultra costs $0.60 per million input tokens and $2.40 per million output tokens; Sonar Pro costs $3.00 and $15.00. Cost per solved task is known for neither of them.

Which has the bigger context window, Nemotron 3 Ultra or Sonar Pro?

Nemotron 3 Ultra, with 262K tokens against 200K.

How many benchmarks is the Nemotron 3 Ultra vs Sonar Pro comparison based on?

3 benchmarks have a result for both models as of October 22, 2026. Nemotron 3 Ultra's coding index rests on 3 independent benchmarks and Sonar Pro's on 0. Where only one model has a result, the page says so instead of naming a winner.

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