NVIDIA-Nemotron-3-Nano-4B-BF16 vs Spark-X2.5-4B-GGUF
Specs, VRAM requirements and download trends — updated 21 September 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | NVIDIA-Nemotron-3-Nano-4B-BF16 | Spark-X2.5-4B-GGUF |
|---|---|---|
| Parameters | 4.0 B | 4.0 B |
| Architecture | NemotronHForCausalLM | — |
| Context length | 262,144 | — |
| Licence | other | apache-2.0 |
| Commercial use | Unknown | Allowed |
| Languages | 1 | 2 |
| Downloads 30d | 3,492,652 | 258,864 |
| Downloads all time | 6.9 M | 259 K |
| Quantizations on the Hub | SAFETENSORS | GGUF |
| Gated | No | No |
| First seen on the Hub | 2026-03-07 | 2026-08-28 |
Download trend
Daily snapshots, last 56 days (28 Jul – 21 Sep)
3.5 M207 K
NVIDIA-Nemotron-3-Nano-4B-BF16
Spark-X2.5-4B-GGUF
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Spark-X2.5-4B-GGUF · Q4_K_M
4.0 GB / 24 GB
NVIDIA-Nemotron-3-Nano-4B-BF16 · fp16 @ 256K ctx
28.3 GB / 24 GB
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