Grok 4.1 Fast vs Nemotron 3 Nano 30B A3B vs Nemotron Nano 12B v2 VL
Too close to call on our weighted score (Grok 4.1 Fast 71, Nemotron 3 Nano 30B A3B 68, Nemotron Nano 12B v2 VL 63). The right pick depends on what you value most.
xAIGrok 4.1 Fast
71/100- ECI—
- Price$0.20 / $0.50
- Context2M
NVIDIANemotron 3 Nano 30B A3B
68/100- ECI—
- Price$0.05 / $0.20
- Context262K
- NVIDIA
Nemotron Nano 12B v2 VL
63/100- ECI—
- Price$0.20 / $0.60
- Context128K
Too close to call
It is close. Our weighted score puts them within 3 points (Grok 4.1 Fast 71/100, Nemotron 3 Nano 30B A3B 68/100, Nemotron Nano 12B v2 VL 63/100), so choose by what matters most for your work: Nemotron 3 Nano 30B A3B on price and Grok 4.1 Fast for long inputs. 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 priceNemotron 3 Nano 30B A3BNemotron 3 Nano 30B A3B $0.087 · Grok 4.1 Fast $0.275 · Nemotron Nano 12B v2 VL $0.30 per 1M tokens (3:1 blend)
- Longest contextGrok 4.1 FastGrok 4.1 Fast 2,000,000 · Nemotron 3 Nano 30B A3B 262,144 · Nemotron Nano 12B v2 VL 128,000 tokens
- Widest inputsNemotron Nano 12B v2 VLGrok 4.1 Fast: Text, Images · Nemotron 3 Nano 30B A3B: Text · Nemotron Nano 12B v2 VL: Text, Images, Video
- Self-hostingNemotron 3 Nano 30B A3B and Nemotron Nano 12B v2 VLPublishes downloadable weights
| Measure | Weight | Grok 4.1 Fast | Nemotron 3 Nano 30B A3B | Nemotron Nano 12B v2 VL |
|---|---|---|---|---|
| Price | 50% | 76 | 100 | 75 |
| Inputs & features | 30% | 60 | 35 | 70 |
| Context window | 20% | 72 | 37 | 24 |
| Overall | 100% | 71/100 | 68/100 | 63/100 |
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 4.1 FastxAI | Nemotron 3 Nano 30B A3BNVIDIA | Nemotron Nano 12B v2 VLNVIDIA |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | — | — | — |
| ECI rank | — | — | — |
| Price per million tokens | |||
| Input | $0.20 | $0.05 (best) | $0.20 |
| Output | $0.50 | $0.20 (best) | $0.60 |
| Cached input | — | — | — |
| Blended (3:1) | $0.275 | $0.087 (best) | $0.30 |
| Long-context rate | Same rate | Same rate | Same rate |
| Price source | Median of 2 providers | Median of 13 providers | Median of 3 providers |
| Limits | |||
| Context window | 2,000,000 tokens (best) | 262,144 tokens | 128,000 tokens |
| Max output | 30,000 tokens | 262,144 tokens (best) | 128,000 tokens |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | Yes | No | Yes |
| PDFs | No | No | No |
| Audio | No | No | No |
| Video | No | No | Yes |
| Reasoning | No | Yes | Yes |
| Tool calling | Yes | Yes | Yes |
| Structured output | Yes | No | No |
| Availability | |||
| Weights | Proprietary | Open | Open |
| API model ID | — | nvidia/nemotron-3-nano-30b-a3b | nvidia/nemotron-nano-12b-v2-vl |
| API providers | 2 | 16 (best) | 4 |
| Released | Nov 19, 2025 | Dec 15, 2025 | Oct 28, 2025 |
| Knowledge cutoff | — | — | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Grok 4.1 Fast$3.00
- Nemotron 3 Nano 30B A3B$0.90
- Nemotron Nano 12B v2 VL$3.20
Which should you choose?
Which is better: Grok 4.1 Fast, Nemotron 3 Nano 30B A3B or Nemotron Nano 12B v2 VL?
It is close. Our weighted score puts them within 3 points (Grok 4.1 Fast 71/100, Nemotron 3 Nano 30B A3B 68/100, Nemotron Nano 12B v2 VL 63/100), so choose by what matters most for your work: Nemotron 3 Nano 30B A3B on price and Grok 4.1 Fast for long inputs. 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 4.1 Fast, Nemotron 3 Nano 30B A3B or Nemotron Nano 12B v2 VL?
Nemotron 3 Nano 30B A3B is cheaper at $0.05 input / $0.20 output per million tokens (median across 13 API providers; free on Nvidia). Grok 4.1 Fast costs $0.20 input / $0.50 output per million tokens (median across 2 API providers); Nemotron Nano 12B v2 VL costs $0.20 input / $0.60 output per million tokens (median across 3 API providers; free on Nvidia). At a typical mix of three input tokens to one output token, that is $0.087 per million tokens for Nemotron 3 Nano 30B A3B versus $0.275 for Grok 4.1 Fast (3.1× as much) and $0.30 for Nemotron Nano 12B v2 VL (3.4× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers all three models yet. Grok 4.1 Fast has not been scored yet, Nemotron 3 Nano 30B A3B has not been scored yet and Nemotron Nano 12B v2 VL has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Grok 4.1 Fast, Nemotron 3 Nano 30B A3B and Nemotron Nano 12B v2 VL yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. All three support tool calling for agent workflows.
Which has the bigger context window?
Grok 4.1 Fast has the largest context window at 2,000,000 tokens, against 262,144 for Nemotron 3 Nano 30B A3B and 128,000 for Nemotron Nano 12B v2 VL. Maximum output per response: Grok 4.1 Fast up to 30,000, Nemotron 3 Nano 30B A3B up to 262,144, Nemotron Nano 12B v2 VL up to 128,000 tokens.
Which can read images, PDFs, audio or video?
Grok 4.1 Fast accepts text and images; Nemotron 3 Nano 30B A3B accepts text; Nemotron Nano 12B v2 VL accepts text, images and video. Nemotron Nano 12B v2 VL handles the widest range of inputs.
Are any of these open source?
Nemotron 3 Nano 30B A3B and Nemotron Nano 12B v2 VL publishes its weights and can be self-hosted; Grok 4.1 Fast is proprietary.
Which is newer?
Nemotron 3 Nano 30B A3B is the newest, released Dec 15, 2025. Grok 4.1 Fast came out Nov 19, 2025; Nemotron Nano 12B v2 VL came out Oct 28, 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 Oct 4, 2026.
