Nemotron 3 Ultra vs Grok 4.20
| Signal | Nemotron 3 Ultra | Delta | Grok 4.20 |
|---|---|---|---|
Capabilities | 67 | -33 | |
Pricing | 98 | +0 | |
Context window size | 86 | -14 | |
Recency | 100 | -- | |
Output Capacity | 84 | -16 | |
Benchmarks | 0 | -86 | |
| Overall Result | 1 wins | of 6 | 4 wins |
Score History
40
current score
Grok 4.20
right now
88.8
current score
Nemotron 3 Ultra
NVIDIA
Grok 4.20
xAI
Nemotron 3 Ultra saves you $70.00/month
That's $840.00/year compared to Grok 4.20 at your current usage level of 100K calls/month.
| Metric | Nemotron 3 Ultra | Grok 4.20 | Winner |
|---|---|---|---|
| Overall Score | 40 | 89 | Grok 4.20 |
| Rank | #314 | #47 | Grok 4.20 |
| Quality Rank | #314 | #47 | Grok 4.20 |
| Adoption Rank | #314 | #47 | Grok 4.20 |
| Parameters | 550B | -- | -- |
| Context Window | 262K | 2000K | Grok 4.20 |
| Pricing | $0.60/$2.40/M | $1.25/$2.50/M | -- |
| Signal Scores | |||
| Capabilities | 67 | 100 | Grok 4.20 |
| Pricing | 98 | 98 | Nemotron 3 Ultra |
| Context window size | 86 | 100 | Grok 4.20 |
| Recency | 100 | 100 | Nemotron 3 Ultra |
| Output Capacity | 84 | 100 | Grok 4.20 |
| Benchmarks | -- | 86 | Grok 4.20 |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 40/100 (rank #314), placing it in the top -8% of all 290 models tracked.
Scores 89/100 (rank #47), placing it in the top 84% of all 290 models tracked.
Grok 4.20 has a 49-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.
Choose Nemotron 3 Ultra when you need:
- Step-by-step reasoning and chain-of-thought problem solving
- Self-hosted deployments where you need full control over the model
Choose Grok 4.20 when you need:
- Processing long documents or large codebases (2000K token context)
- Multimodal workflows that require image understanding
- Step-by-step reasoning and chain-of-thought problem solving
Grok 4.20 offers 20% better value per quality point. At 1M tokens/day, you'd spend $45.00/month with Nemotron 3 Ultra vs $56.25/month with Grok 4.20 - a $11.25 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Nemotron 3 Ultra also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (2000K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($2.40/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (89/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Grok 4.20 clearly outperforms Nemotron 3 Ultra with a significant 48.8-point lead. For most general use cases, Grok 4.20 is the stronger choice. However, Nemotron 3 Ultra may still excel in niche scenarios.
By Use Case
Best for Quality
Nemotron 3 Ultra
Marginally better benchmark scores; both are excellent
Best for Cost
Nemotron 3 Ultra
20% lower pricing; better value at scale
Best for Reliability
Nemotron 3 Ultra
Higher uptime and faster response speeds
Best for Prototyping
Nemotron 3 Ultra
Stronger community support and better developer experience
Best for Production
Nemotron 3 Ultra
Wider enterprise adoption and proven at scale
by NVIDIA
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Cost - 20% lower pricing; better value at scale
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | Nemotron 3 Ultra | Grok 4.20 |
|---|---|---|
| Vision (Image Input)differs | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
Nemotron 3 Ultra
NVIDIA
Grok 4.20
xAI
Nemotron 3 Ultra saves you $1.29/month
That's 25% cheaper than Grok 4.20 at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Nemotron 3 Ultra | Grok 4.20 |
|---|---|---|
| Context Window | 262K | 2M |
| Max Output Tokens | 182,520 | 1,800,000 |
| Open Source | Yes | No |
| Created | Jun 4, 2026 | Mar 31, 2026 |