Gemini 4 Hydrogen vs Nemotron 3 Ultra
Gemini 4 Hydrogen leads Nemotron 3 Ultra on coding, 77.9 to 30.0 on the Vibe Coding Index, and Nemotron 3 Ultra costs 3.3x less per output token ($2.30 vs $7.50 per million). Updated November 14, 2026; 35 benchmarks have a result for both.
Gemini 4 Hydrogen or Nemotron 3 Ultra: which to pick
Pick Gemini 4 Hydrogen for coding: it scores 77.9 on the Vibe Coding Index against 30.0 for Nemotron 3 Ultra.
Pick Nemotron 3 Ultra for output tokens 3.3x cheaper ($2.30 vs $7.50 per million).
- Shared results
- 35
- Gemini 4 Hydrogen only
- 15
- Nemotron 3 Ultra only
- 45
- 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.
Coding
Vibe Coding Index, six public coding benchmarks
Gemini 4 Hydrogen
Gemini 4 Hydrogen scores 77.9 against 30.0.
4 and 3 benchmarks behind the scores
Intelligence
AA Intelligence Index
No call
Only Nemotron 3 Ultra has a AA Intelligence Index result, 11.8.
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
Gemini 4 Hydrogen
Gemini 4 Hydrogen leads, 1320 against 1129.
Same board, both measured
General
Vals Index
No call
Only Gemini 4 Hydrogen has a Vals Index result, 68.5%.
Directional only
Long documents
Listed context window
Gemini 4 Hydrogen
Gemini 4 Hydrogen takes 1.05M tokens against 262K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Nemotron 3 Ultra
Gemini 4 Hydrogen $0.0053, Nemotron 3 Ultra $0.0017 per turn.
List prices
At a glance
- Coding index
- Gemini 4 Hydrogen 77.9 from 4 benchmarks, Nemotron 3 Ultra 30.0 from 3 benchmarks.
- Widest category
- Agentic work, 38.5 points apart on average over 1 shared benchmark.
- Widest single gap
- Vibe Code Bench (Vals AI): Gemini 4 Hydrogen 87.8% against Nemotron 3 Ultra 7.6%, 80.1 points apart on a 0 to 100 scale.
- Output price
- Gemini 4 Hydrogen $7.50 against Nemotron 3 Ultra $2.30 per million output tokens, 3.3x apart.
- Context window
- Gemini 4 Hydrogen takes 1.05M tokens, Nemotron 3 Ultra 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.
| Category | Gemini 4 Hydrogen | Bars | Nemotron 3 Ultra | Ties |
|---|---|---|---|---|
| Coding | 5 | 0 | ||
| Agentic work | 1 | 0 | ||
| Reasoning | 5 | 0 | ||
| Math | 2 | 0 | ||
| Knowledge | 5 | 0 | ||
| Web design | 4 | 0 | ||
| General | 13 | 0 | ||
| All shared boards | 35 | 0 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index50
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| LiveBench coding | 78.5% | Not measured | Only Gemini 4 Hydrogen measured |
| LMArena WebDev | 1704 | Not measured | Only Gemini 4 Hydrogen measured |
| AA Coding Index | Not measured | 49.3 | Only Nemotron 3 Ultra measured |
| LiveCodeBench (Vals AI) | Not measured | 86.0% | Only Nemotron 3 Ultra measured |
| SWE-bench Verified (Vals AI) | Not measured | 69.0% | Only Nemotron 3 Ultra measured |
| Terminal-Bench 4 (Vals AI) | 54.0% | Not measured | Only Gemini 4 Hydrogen measured |
| Vibe Code Bench (Vals AI) | 87.8% | 7.6% | Gemini 4 Hydrogen |
| Code migration (Vals AI) | Not measured | 4.9% | Only Nemotron 3 Ultra measured |
| ProgramBench (Vals AI) | Not measured | 0.0% | Only Nemotron 3 Ultra measured |
| Terminal-Bench 2.1 (Vals AI) | Not measured | 50.9% | Only Nemotron 3 Ultra measured |
| SciCode | Not measured | 40.3% | Only Nemotron 3 Ultra measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 36.4% | Only Nemotron 3 Ultra measured |
| Terminal-Bench 4.0 (Artificial Analysis run) | 54.0% | 0.5% | Gemini 4 Hydrogen |
| FrontierCode 2.0 | 39.0% | 1.1% | Gemini 4 Hydrogen |
| FrontierCode | Not measured | 13.6% | Only Nemotron 3 Ultra measured |
| WeirdML | Not measured | 43.5% | Only Nemotron 3 Ultra measured |
| LMArena Text: coding | 1516 | 1468 | Gemini 4 Hydrogen |
| LMArena Text: software and IT | 1513 | 1468 | Gemini 4 Hydrogen |
| LMArena WebDev: React | 1724 | Not measured | Only Gemini 4 Hydrogen measured |
| LMArena WebDev: HTML | 1743 | Not measured | Only Gemini 4 Hydrogen measured |
| GameBench 2 | Not measured | 45.6 | Only Nemotron 3 Ultra measured |
| CursorBench 4.0 | 57.8% | Not measured | Only Gemini 4 Hydrogen measured |
| Neither model has a result on the other 30 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 11.8 | Only Nemotron 3 Ultra measured |
| Epoch Capabilities Index | Not measured | 146.9 | Only Nemotron 3 Ultra measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| AA Agentic Index | Not measured | 20.1 | Only Nemotron 3 Ultra measured |
| LiveBench research | 86.8% | Not measured | Only Gemini 4 Hydrogen measured |
| LiveBench browser | 77.1% | Not measured | Only Gemini 4 Hydrogen measured |
| LiveBench long agentic | 61.8% | Not measured | Only Gemini 4 Hydrogen measured |
| Finance Agent (Vals AI) | Not measured | 37.7% | Only Nemotron 3 Ultra measured |
| Tax Agent Bench (Vals AI) | 52.3% | Not measured | Only Gemini 4 Hydrogen measured |
| Legal Research Bench (Vals AI) | 53.8% | 15.4% | Gemini 4 Hydrogen |
| Harvey's Legal Agent Benchmark (Vals AI) | 11.3% | Not measured | Only Gemini 4 Hydrogen measured |
| Excel Modeling Benchmark (Vals AI) | Not measured | 31.7% | Only Nemotron 3 Ultra measured |
| τ²-Bench Telecom | Not measured | 83.3% | Only Nemotron 3 Ultra measured |
| APEX-Agents | Not measured | 22.7% | Only Nemotron 3 Ultra measured |
| MCP Atlas | Not measured | 63.1% | Only Nemotron 3 Ultra measured |
| Toolathlon-Verified | Not measured | 34.3% | Only Nemotron 3 Ultra measured |
| Neither model has a result on the other 31 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index50
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 86.1% | Only Nemotron 3 Ultra measured |
| LiveBench reasoning | 88.6% | Not measured | Only Gemini 4 Hydrogen measured |
| GPQA Diamond (Artificial Analysis run) | Not measured | 86.7% | Only Nemotron 3 Ultra measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 28.4% | Only Nemotron 3 Ultra measured |
| HLE-Diamond (Artificial Analysis run) | 58.8% | 8.5% | Gemini 4 Hydrogen |
| CritPt v2, hard subset (Artificial Analysis run) | 66.0% | 15.0% | Gemini 4 Hydrogen |
| GPQA Diamond (Epoch AI run) | Not measured | 85.4% | Only Nemotron 3 Ultra measured |
| SimpleBench | Not measured | 41.7% | Only Nemotron 3 Ultra measured |
| Mystery game puzzles | Not measured | 20.0% | Only Nemotron 3 Ultra measured |
| LMArena Text: hard prompts | 1520 | 1452 | Gemini 4 Hydrogen |
| LMArena Text: expert | 1558 | 1473 | Gemini 4 Hydrogen |
| LMArena Text: hard prompts in English | 1514 | 1452 | Gemini 4 Hydrogen |
| Neither model has a result on the other 14 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| OTIS Mock AIME | Not measured | 86.7% | Only Nemotron 3 Ultra measured |
| ProofBench | Not measured | 2.0% | Only Nemotron 3 Ultra measured |
| LMArena Text: math | 1507 | 1456 | Gemini 4 Hydrogen |
| LMArena Text: mathematical work | 1534 | 1462 | Gemini 4 Hydrogen |
| Neither model has a result on the other 10 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 85.8% | Only Nemotron 3 Ultra measured |
| LegalBench (Vals AI) | Not measured | 82.1% | Only Nemotron 3 Ultra measured |
| CorpFin (Vals AI) | Not measured | 65.5% | Only Nemotron 3 Ultra measured |
| TaxEval (Vals AI) | Not measured | 73.1% | Only Nemotron 3 Ultra measured |
| MedCode (Vals AI) | Not measured | 38.6% | Only Nemotron 3 Ultra measured |
| AA-Omniscience | 46.3 | 3.4 | Gemini 4 Hydrogen |
| LMArena Text: science | 1519 | 1465 | Gemini 4 Hydrogen |
| LMArena Text: medicine and healthcare | 1488 | 1457 | Gemini 4 Hydrogen |
| LMArena Text: legal and government | 1532 | 1455 | Gemini 4 Hydrogen |
| LMArena Text: business and finance | 1486 | 1435 | Gemini 4 Hydrogen |
| Neither model has a result on the other 11 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| Design Arena: websites | 1320 | 1129 | Gemini 4 Hydrogen |
| Design Arena: UI components | Not measured | 1126 | Only Nemotron 3 Ultra measured |
| Design Arena: game dev | 1369 | 1126 | Gemini 4 Hydrogen |
| Design Arena: data viz | Not measured | 1137 | Only Nemotron 3 Ultra measured |
| Design Arena: 3D | 1415 | 1108 | Gemini 4 Hydrogen |
| Design Arena: all code categories | 1333 | 1131 | Gemini 4 Hydrogen |
| Design Arena: SVG | Not measured | 1060 | Only Nemotron 3 Ultra measured |
| Design Arena: ASCII art | Not measured | 1093 | Only Nemotron 3 Ultra measured |
| LiveBench design | 77.3% | Not measured | Only Gemini 4 Hydrogen measured |
GeneralLike-for-likePublic boards, shown as published, kept out of the index130
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | Leader |
|---|---|---|---|
| Vals Index | 68.5% | Not measured | Only Gemini 4 Hydrogen measured |
| LiveBench data analysis | 83.2% | Not measured | Only Gemini 4 Hydrogen measured |
| IFBench | Not measured | 81.4% | Only Nemotron 3 Ultra measured |
| Long context reasoning (AA-LCR) | Not measured | 79.3% | Only Nemotron 3 Ultra measured |
| GDPval-AA | Not measured | 1020 | Only Nemotron 3 Ultra measured |
| DTBench | Not measured | 90.1% | Only Nemotron 3 Ultra measured |
| LMCA | Not measured | 36.9% | Only Nemotron 3 Ultra measured |
| LMArena Text | 1502 | 1445 | Gemini 4 Hydrogen |
| LMArena Text: instruction following | 1519 | 1418 | Gemini 4 Hydrogen |
| LMArena Text: creative writing | 1509 | 1399 | Gemini 4 Hydrogen |
| LMArena Text: English | 1499 | 1454 | Gemini 4 Hydrogen |
| LMArena Text: non-English | 1495 | 1428 | Gemini 4 Hydrogen |
| LMArena Text: Chinese | 1631 | 1498 | Gemini 4 Hydrogen |
| LMArena Text: German | Not measured | 1473 | Only Nemotron 3 Ultra measured |
| LMArena Text: Korean | Not measured | 1383 | Only Nemotron 3 Ultra measured |
| LMArena Text: French | 1512 | 1472 | Gemini 4 Hydrogen |
| LMArena Text: Spanish | 1494 | 1458 | Gemini 4 Hydrogen |
| LMArena Text: Russian | 1492 | 1420 | Gemini 4 Hydrogen |
| LMArena Text: Polish | Not measured | 1382 | Only Nemotron 3 Ultra measured |
| LMArena Text: multi-turn | 1485 | 1410 | Gemini 4 Hydrogen |
| LMArena Text: longer queries | 1524 | 1437 | Gemini 4 Hydrogen |
| LMArena Text: writing and language | 1500 | 1407 | Gemini 4 Hydrogen |
| LMArena Text: entertainment and media | 1503 | 1399 | Gemini 4 Hydrogen |
| 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
| Benchmark | Gemini 4 Hydrogen | Nemotron 3 Ultra | 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
Nemotron 3 Ultra costs less
Repository review
50K input + 3K output tokens
Nemotron 3 Ultra costs less
Agent loop
200K input + 10K output tokens
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.
| Specification | Google Gemini 4 Hydrogen | NVIDIA Nemotron 3 Ultra |
|---|---|---|
| Maker | NVIDIA | |
| Weights | No public weights listed | Open weights |
| Released | November 12, 2026 | June 4, 2026 |
| Context window | 1.05M | 262K |
| Input $/Mtok | $1.50 | $0.55 |
| Output $/Mtok | $7.50 | $2.30 |
| Coding index | 77.9 | 30.0 |
| Independent measurements behind it | 4 | 3 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Gemini 4 Hydrogen better than Nemotron 3 Ultra for coding?
Pick Gemini 4 Hydrogen for coding: it scores 77.9 on the Vibe Coding Index against 30.0 for Nemotron 3 Ultra. Pick Nemotron 3 Ultra for output tokens 3.3x cheaper ($2.30 vs $7.50 per million).
Which is cheaper, Gemini 4 Hydrogen or Nemotron 3 Ultra?
Gemini 4 Hydrogen costs $1.50 per million input tokens and $7.50 per million output tokens; Nemotron 3 Ultra costs $0.55 and $2.30. Cost per solved task is known for neither of them.
Which has the bigger context window, Gemini 4 Hydrogen or Nemotron 3 Ultra?
Gemini 4 Hydrogen, with 1.05M tokens against 262K.
How many benchmarks is the Gemini 4 Hydrogen vs Nemotron 3 Ultra comparison based on?
35 benchmarks have a result for both models as of November 14, 2026. Gemini 4 Hydrogen's coding index rests on 4 independent benchmarks and Nemotron 3 Ultra's on 3. Where only one model has a result, the page says so instead of naming a winner.