Nemotron 3 Ultra vs Hy3
Hy3 costs 4.5x less per output token than Nemotron 3 Ultra ($0.528 vs $2.40 per million). Updated October 23, 2026; 39 benchmarks have a result for both.
Nemotron 3 Ultra or Hy3: which to pick
Only Nemotron 3 Ultra has a coding score, 30.0 on the Vibe Coding Index; Hy3 has none, so the two cannot be ranked on coding.
Pick Hy3 for output tokens 4.5x cheaper ($0.528 vs $2.40 per million) and work measured by SciCode or GPQA Diamond (Artificial Analysis run), where it leads.
- Shared results
- 39
- Nemotron 3 Ultra only
- 32
- Hy3 only
- 5
- Like-for-like categories
- 6 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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Only Nemotron 3 Ultra has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Nemotron 3 Ultra has a AA Intelligence Index result, 22.9.
Directional only
Agentic work
AA Agentic Index
No call
Only Nemotron 3 Ultra has a AA Agentic Index result, 20.1.
Directional only
Reasoning
GPQA Diamond
No call
Only Nemotron 3 Ultra has a GPQA Diamond result, 86.1%.
Directional only
Knowledge
MMLU Pro
No call
Only Nemotron 3 Ultra has a MMLU Pro result, 85.8%.
Directional only
Web design
Design Arena: websites
Hy3
Hy3 leads, 1230 against 1145.
Same board, both measured
Long documents
Listed context window
No call
Both take 262K tokens.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Hy3
Nemotron 3 Ultra $0.0018, Hy3 $0.0004 per turn.
List prices
At a glance
- Coding index
- Nemotron 3 Ultra 30.0 from 3 benchmarks, Hy3 not benchmarked.
- Widest category
- Web design, 9.6 points apart on average over 8 shared benchmarks.
- Widest single gap
- Design Arena: SVG: Nemotron 3 Ultra 1069 against Hy3 1201, 16.5 points apart on a 0 to 100 scale.
- Output price
- Nemotron 3 Ultra $2.40 against Hy3 $0.528 per million output tokens, 4.5x apart.
- Context window
- Both take 262K 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.
| Category | Nemotron 3 Ultra | Bars | Hy3 | Ties |
|---|---|---|---|---|
| Coding | 2 | 1 | ||
| Reasoning | 2 | 3 | ||
| Math | 0 | 2 | ||
| Knowledge | 4 | 0 | ||
| Web design | 0 | 8 | ||
| General | 7 | 10 | ||
| All shared boards | 15 | 24 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index21
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| LMArena WebDev | Not measured | 1506 | Only Hy3 measured |
| AA Coding Index | 49.3 | Not measured | Only Nemotron 3 Ultra measured |
| LiveCodeBench (Vals AI) | 86.0% | Not measured | Only Nemotron 3 Ultra measured |
| SWE-bench Verified (Vals AI) | 69.0% | Not measured | Only Nemotron 3 Ultra measured |
| Vibe Code Bench (Vals AI) | 7.6% | Not measured | Only Nemotron 3 Ultra measured |
| Code migration (Vals AI) | 4.9% | Not measured | Only Nemotron 3 Ultra measured |
| ProgramBench (Vals AI) | 0.0% | Not measured | Only Nemotron 3 Ultra measured |
| Terminal-Bench 2.1 (Vals AI) | 50.9% | Not measured | Only Nemotron 3 Ultra measured |
| SciCode | 40.3% | 48.6% | Hy3 |
| Terminal-Bench Hard (Artificial Analysis run) | 36.4% | Not measured | Only Nemotron 3 Ultra measured |
| FrontierCode | 13.6% | Not measured | Only Nemotron 3 Ultra measured |
| WeirdML | 43.5% | Not measured | Only Nemotron 3 Ultra measured |
| ALE-Bench | Not measured | 838.6 | Only Hy3 measured |
| LMArena Text: coding | 1467 | 1466 | Nemotron 3 Ultra |
| LMArena Text: software and IT | 1468 | 1463 | Nemotron 3 Ultra |
| LMArena WebDev: React | Not measured | 1509 | Only Hy3 measured |
| LMArena WebDev: HTML | Not measured | 1486 | Only Hy3 measured |
| Neither model has a result on the other 26 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| AA Intelligence Index | 22.9 | Not measured | Only Nemotron 3 Ultra measured |
| Epoch Capabilities Index | 146.0 | Not measured | Only Nemotron 3 Ultra measured |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| AA Agentic Index | 20.1 | Not measured | Only Nemotron 3 Ultra measured |
| Finance Agent (Vals AI) | 37.7% | Not measured | Only Nemotron 3 Ultra measured |
| Legal Research Bench (Vals AI) | 15.4% | Not measured | Only Nemotron 3 Ultra measured |
| Excel Modeling Benchmark (Vals AI) | 31.7% | Not measured | Only Nemotron 3 Ultra measured |
| τ²-Bench Telecom | 83.3% | Not measured | Only Nemotron 3 Ultra measured |
| APEX-Agents | 22.7% | Not measured | Only Nemotron 3 Ultra measured |
| MCP Atlas | 63.1% | Not measured | Only 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 index23
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| GPQA Diamond | 86.1% | Not measured | Only Nemotron 3 Ultra measured |
| GPQA Diamond (Artificial Analysis run) | 86.7% | 89.7% | Hy3 |
| Humanity's Last Exam (Artificial Analysis run) | 28.4% | 33.5% | Hy3 |
| GPQA Diamond (Epoch AI run) | 85.4% | Not measured | Only Nemotron 3 Ultra measured |
| Mystery game puzzles | 20.0% | Not measured | Only Nemotron 3 Ultra measured |
| LMArena Text: hard prompts | 1452 | 1448 | Nemotron 3 Ultra |
| LMArena Text: expert | 1472 | 1461 | Nemotron 3 Ultra |
| LMArena Text: hard prompts in English | 1453 | 1454 | Hy3 |
| Neither model has a result on the other 15 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| OTIS Mock AIME | 86.7% | Not measured | Only Nemotron 3 Ultra measured |
| ProofBench | 2.0% | Not measured | Only Nemotron 3 Ultra measured |
| LMArena Text: math | 1457 | 1476 | Hy3 |
| LMArena Text: mathematical work | 1462 | 1483 | Hy3 |
| Neither model has a result on the other 10 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| MMLU Pro | 85.8% | Not measured | Only Nemotron 3 Ultra measured |
| LegalBench (Vals AI) | 82.1% | Not measured | Only Nemotron 3 Ultra measured |
| CorpFin (Vals AI) | 65.5% | Not measured | Only Nemotron 3 Ultra measured |
| TaxEval (Vals AI) | 73.1% | Not measured | Only Nemotron 3 Ultra measured |
| MedCode (Vals AI) | 38.6% | Not measured | Only Nemotron 3 Ultra measured |
| LMArena Text: science | 1465 | 1457 | Nemotron 3 Ultra |
| LMArena Text: medicine and healthcare | 1455 | 1449 | Nemotron 3 Ultra |
| LMArena Text: legal and government | 1453 | 1422 | Nemotron 3 Ultra |
| LMArena Text: business and finance | 1435 | 1424 | Nemotron 3 Ultra |
| Neither model has a result on the other 11 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index08
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| Design Arena: websites | 1145 | 1230 | Hy3 |
| Design Arena: UI components | 1135 | 1204 | Hy3 |
| Design Arena: game dev | 1138 | 1208 | Hy3 |
| Design Arena: data viz | 1142 | 1165 | Hy3 |
| Design Arena: 3D | 1132 | 1233 | Hy3 |
| Design Arena: all code categories | 1146 | 1227 | Hy3 |
| Design Arena: SVG | 1069 | 1201 | Hy3 |
| Design Arena: ASCII art | 1100 | 1152 | Hy3 |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index710
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| IFBench | 81.4% | Not measured | Only Nemotron 3 Ultra measured |
| Long context reasoning (AA-LCR) | 79.3% | 79.0% | Nemotron 3 Ultra |
| DTBench | 90.1% | Not measured | Only Nemotron 3 Ultra measured |
| LMCA | 36.9% | Not measured | Only Nemotron 3 Ultra measured |
| LMArena Text | 1445 | 1438 | Nemotron 3 Ultra |
| LMArena Text: instruction following | 1418 | 1427 | Hy3 |
| LMArena Text: creative writing | 1398 | 1405 | Hy3 |
| LMArena Text: English | 1454 | 1447 | Nemotron 3 Ultra |
| LMArena Text: non-English | 1427 | 1427 | Nemotron 3 Ultra |
| LMArena Text: Chinese | 1498 | 1483 | Nemotron 3 Ultra |
| LMArena Text: German | 1474 | 1444 | Nemotron 3 Ultra |
| LMArena Text: Japanese | Not measured | 1393 | Only Hy3 measured |
| LMArena Text: Korean | 1385 | 1396 | Hy3 |
| LMArena Text: French | 1473 | 1450 | Nemotron 3 Ultra |
| LMArena Text: Spanish | 1454 | 1456 | Hy3 |
| LMArena Text: Russian | 1417 | 1436 | Hy3 |
| LMArena Text: Polish | 1385 | 1446 | Hy3 |
| LMArena Text: multi-turn | 1411 | 1437 | Hy3 |
| LMArena Text: longer queries | 1437 | 1442 | Hy3 |
| LMArena Text: writing and language | 1405 | 1415 | Hy3 |
| LMArena Text: entertainment and media | 1397 | 1401 | Hy3 |
| Neither model has a result on the other 27 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Nemotron 3 Ultra | Hy3 | Leader |
|---|---|---|---|
| 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
Hy3 costs less
Repository review
50K input + 3K output tokens
Hy3 costs less
Agent loop
200K input + 10K output tokens
Hy3 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.
| Specification | NVIDIA Nemotron 3 Ultra | Tencent Hy3 |
|---|---|---|
| Maker | NVIDIA | Tencent |
| Weights | Open weights | Open weights |
| Released | June 4, 2026 | July 6, 2026 |
| Context window | 262K | 262K |
| Input $/Mtok | $0.60 | $0.132 |
| Output $/Mtok | $2.40 | $0.528 |
| Coding index | 30.0 | Not benchmarked |
| Independent measurements behind it | 3 | 1 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Nemotron 3 Ultra better than Hy3 for coding?
Only Nemotron 3 Ultra has a coding score, 30.0 on the Vibe Coding Index; Hy3 has none, so the two cannot be ranked on coding. Pick Hy3 for output tokens 4.5x cheaper ($0.528 vs $2.40 per million) and work measured by SciCode or GPQA Diamond (Artificial Analysis run), where it leads.
Which is cheaper, Nemotron 3 Ultra or Hy3?
Nemotron 3 Ultra costs $0.60 per million input tokens and $2.40 per million output tokens; Hy3 costs $0.132 and $0.528. Cost per solved task is known for neither of them.
Which has the bigger context window, Nemotron 3 Ultra or Hy3?
Neither: both take 262K tokens.
How many benchmarks is the Nemotron 3 Ultra vs Hy3 comparison based on?
39 benchmarks have a result for both models as of October 23, 2026. Nemotron 3 Ultra's coding index rests on 3 independent benchmarks and Hy3's on 1. Where only one model has a result, the page says so instead of naming a winner.