Grok 4 Fast Non Reasoning vs Nemotron 3 Super 120B A12B
Grok 4 Fast Non Reasoning comes out ahead, 72 to 54 on our weighted score.
- Our pick
xAIGrok 4 Fast Non Reasoning
72/100- ECI—
- Price$0.20 / $0.50
- Context2M
NVIDIANemotron 3 Super 120B A12B
54/100- ECI—
- Price$0.15 / $0.65
- Context262K
Add a model
Make it a three-way comparison.
Grok 4 Fast Non Reasoning is our pick
Grok 4 Fast Non Reasoning is the better all-round choice, scoring 72/100 against Nemotron 3 Super 120B A12B (54). It leads on inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceSame priceGrok 4 Fast Non Reasoning $0.275 · Nemotron 3 Super 120B A12B $0.275 per 1M tokens (3:1 blend)
- Longest contextGrok 4 Fast Non ReasoningGrok 4 Fast Non Reasoning 2,000,000 · Nemotron 3 Super 120B A12B 262,144 tokens
- Widest inputsGrok 4 Fast Non ReasoningGrok 4 Fast Non Reasoning: Text, Images, Audio, Video · Nemotron 3 Super 120B A12B: Text
- Self-hostingNemotron 3 Super 120B A12BPublishes downloadable weights
| Measure | Weight | Grok 4 Fast Non Reasoning | Nemotron 3 Super 120B A12B |
|---|---|---|---|
| Price | 50% | 73 | 73 |
| Inputs & features | 30% | 70 | 35 |
| Context window | 20% | 72 | 37 |
| Overall | 100% | 72/100 | 54/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Grok 4 Fast Non ReasoningxAI | Nemotron 3 Super 120B A12BNVIDIA |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $0.20 | $0.15 (best) |
| Output | $0.50 (best) | $0.65 |
| Cached input | — | — |
| Blended (3:1) | $0.275 | $0.275 |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 7 providers | Median of 16 providers |
| Limits | ||
| Context window | 2,000,000 tokens (best) | 262,144 tokens |
| Max output | 2,000,000 tokens (best) | 262,144 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | No |
| PDFs | No | No |
| Audio | Yes | No |
| Video | Yes | No |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | Proprietary | Open |
| API model ID | — | — |
| API providers | 8 | 18 (best) |
| Released | Dec 18, 2025 | Mar 11, 2026 |
| Knowledge cutoff | — | Jun 2025 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Grok 4 Fast Non Reasoning$3.00
- Nemotron 3 Super 120B A12B$2.80
Which should you choose?
Which is better: Grok 4 Fast Non Reasoning or Nemotron 3 Super 120B A12B?
Grok 4 Fast Non Reasoning is the better all-round choice, scoring 72/100 against Nemotron 3 Super 120B A12B (54). It leads on inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, Grok 4 Fast Non Reasoning or Nemotron 3 Super 120B A12B?
Grok 4 Fast Non Reasoning and Nemotron 3 Super 120B A12B cost the same: $0.20 input / $0.50 output per million tokens.
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Grok 4 Fast Non Reasoning has not been scored yet and Nemotron 3 Super 120B A12B has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Grok 4 Fast Non Reasoning and Nemotron 3 Super 120B A12B yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
Grok 4 Fast Non Reasoning has the largest context window at 2,000,000 tokens, against 262,144 for Nemotron 3 Super 120B A12B. Maximum output per response: Grok 4 Fast Non Reasoning up to 2,000,000, Nemotron 3 Super 120B A12B up to 262,144 tokens.
Which can read images, PDFs, audio or video?
Grok 4 Fast Non Reasoning accepts text, images, audio and video; Nemotron 3 Super 120B A12B accepts text. Grok 4 Fast Non Reasoning handles the widest range of inputs.
Are any of these open source?
Nemotron 3 Super 120B A12B publishes its weights and can be self-hosted; Grok 4 Fast Non Reasoning is proprietary.
Which is newer?
Nemotron 3 Super 120B A12B is the newest, released Mar 11, 2026. Grok 4 Fast Non Reasoning came out Dec 18, 2025. Knowledge cutoff: Nemotron 3 Super 120B A12B Jun 2025.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Nov 2, 2026.
Related comparisons
- Add GLM-4.6V-FlashThree-way comparison
- Grok 4 Fast Non Reasoning vs GLM-4.6V-FlashZ.ai (Zhipu)
- Grok 4 Fast Non Reasoning vs Jamba MiniAI21 Labs
- Grok 4 Fast Non Reasoning vs Sarvam 105BSarvam AI
- Grok 4 Fast Non Reasoning vs Solar Pro 3Upstage
- Nemotron 3 Super 120B A12B vs Mistral Small 4Mistral AI
- Nemotron 3 Super 120B A12B vs Sarvam 105BSarvam AI
