N Neurarch Architectures Models Checks Data Docs Open the app

Models / nemotron_h

NVIDIA-Nemotron-3-Nano-30B-A3B-NVFP4

Reconstructed from its own config.json with no weights read. 497K downloads on Hugging Face.

Our count against the checkpoint

The left number comes from the graph. The right one is the number of scalars in the published weight files. Nothing on this page was tuned to make them agree.

Derived from structure
102B
102,337,027,328 parameters
In the published checkpoint
18.24B
18,237,772,608 scalars · safetensors.total, read 2026-08-24
Delta
+461%

custom-code This repository ships its own modeling code (`auto_map`, e.g. `configuration_nemotron_h.py`), so `config.json` names a class in the repo rather than an architecture `transformers` defines. The graph below is what those config keys mean under `transformers` semantics, which is not necessarily what the repo's own file builds. A gap here is a statement about what we read, not about the checkpoint.

What it costs to run

Cost is a roofline estimate on the priced GPU for 10 epochs at batch 32 over 50,000 samples (assumed; no dataset attached). GPU fit is fp32 weights plus gradients plus two Adam moments (16 bytes per parameter) with 1.3x headroom; activations are not included and grow with batch size.

Layers
316
Will it forward-pass
Yes
Priced on
A10G (24GB)
Est. one run
$616838.54
CardMemory
T4 (16GB)weights + activationsdoes not fit
A100 (40GB)weights + activationsdoes not fit
H100 (80GB)weights + activationsdoes not fit

Structure

318 nodes. Output shapes are propagated from the input shape, batch dimension excluded.

LayerTypeOutput shape
1InputInput1 × 262144
2EmbeddingEmbedding1 × 262144 × 2688
3RoPERoPE1 × 262144 × 2688
4LayerNorm_1_1LayerNorm1 × 262144 × 2688
5Attention_1Grouped Query Attn1 × 262144 × 2688
6Add_1_attnAdd1 × 262144 × 2688
7LayerNorm_1_2LayerNorm1 × 262144 × 2688
8MoE_1Shared-Expert MoE1 × 262144 × 2688
9Add_1_ffnAdd1 × 262144 × 2688
10LayerNorm_2_1LayerNorm1 × 262144 × 2688
11Attention_2Grouped Query Attn1 × 262144 × 2688
12Add_2_attnAdd1 × 262144 × 2688
13LayerNorm_2_2LayerNorm1 × 262144 × 2688
14MoE_2Shared-Expert MoE1 × 262144 × 2688
15Add_2_ffnAdd1 × 262144 × 2688
16LayerNorm_3_1LayerNorm1 × 262144 × 2688
17Attention_3Grouped Query Attn1 × 262144 × 2688
18Add_3_attnAdd1 × 262144 × 2688
19LayerNorm_3_2LayerNorm1 × 262144 × 2688
20MoE_3Shared-Expert MoE1 × 262144 × 2688
21Add_3_ffnAdd1 × 262144 × 2688
22LayerNorm_4_1LayerNorm1 × 262144 × 2688
23Attention_4Grouped Query Attn1 × 262144 × 2688
24Add_4_attnAdd1 × 262144 × 2688
25LayerNorm_4_2LayerNorm1 × 262144 × 2688
26MoE_4Shared-Expert MoE1 × 262144 × 2688
27Add_4_ffnAdd1 × 262144 × 2688
28LayerNorm_5_1LayerNorm1 × 262144 × 2688
29Attention_5Grouped Query Attn1 × 262144 × 2688
30Add_5_attnAdd1 × 262144 × 2688
31LayerNorm_5_2LayerNorm1 × 262144 × 2688
32MoE_5Shared-Expert MoE1 × 262144 × 2688
33Add_5_ffnAdd1 × 262144 × 2688
34LayerNorm_6_1LayerNorm1 × 262144 × 2688
35Attention_6Grouped Query Attn1 × 262144 × 2688
36Add_6_attnAdd1 × 262144 × 2688
37LayerNorm_6_2LayerNorm1 × 262144 × 2688
38MoE_6Shared-Expert MoE1 × 262144 × 2688
39Add_6_ffnAdd1 × 262144 × 2688
40LayerNorm_7_1LayerNorm1 × 262144 × 2688
41Attention_7Grouped Query Attn1 × 262144 × 2688
42Add_7_attnAdd1 × 262144 × 2688
43LayerNorm_7_2LayerNorm1 × 262144 × 2688
44MoE_7Shared-Expert MoE1 × 262144 × 2688
45Add_7_ffnAdd1 × 262144 × 2688
46LayerNorm_8_1LayerNorm1 × 262144 × 2688
47Attention_8Grouped Query Attn1 × 262144 × 2688
48Add_8_attnAdd1 × 262144 × 2688
49LayerNorm_8_2LayerNorm1 × 262144 × 2688
50MoE_8Shared-Expert MoE1 × 262144 × 2688
51Add_8_ffnAdd1 × 262144 × 2688
52LayerNorm_9_1LayerNorm1 × 262144 × 2688
53Attention_9Grouped Query Attn1 × 262144 × 2688
54Add_9_attnAdd1 × 262144 × 2688
55LayerNorm_9_2LayerNorm1 × 262144 × 2688
56MoE_9Shared-Expert MoE1 × 262144 × 2688
57Add_9_ffnAdd1 × 262144 × 2688
58LayerNorm_10_1LayerNorm1 × 262144 × 2688
59Attention_10Grouped Query Attn1 × 262144 × 2688
60Add_10_attnAdd1 × 262144 × 2688
61LayerNorm_10_2LayerNorm1 × 262144 × 2688
62MoE_10Shared-Expert MoE1 × 262144 × 2688
63Add_10_ffnAdd1 × 262144 × 2688
64LayerNorm_11_1LayerNorm1 × 262144 × 2688
65Attention_11Grouped Query Attn1 × 262144 × 2688
66Add_11_attnAdd1 × 262144 × 2688
67LayerNorm_11_2LayerNorm1 × 262144 × 2688
68MoE_11Shared-Expert MoE1 × 262144 × 2688
69Add_11_ffnAdd1 × 262144 × 2688
70LayerNorm_12_1LayerNorm1 × 262144 × 2688
71Attention_12Grouped Query Attn1 × 262144 × 2688
72Add_12_attnAdd1 × 262144 × 2688
73LayerNorm_12_2LayerNorm1 × 262144 × 2688
74MoE_12Shared-Expert MoE1 × 262144 × 2688
75Add_12_ffnAdd1 × 262144 × 2688
76LayerNorm_13_1LayerNorm1 × 262144 × 2688
77Attention_13Grouped Query Attn1 × 262144 × 2688
78Add_13_attnAdd1 × 262144 × 2688
79LayerNorm_13_2LayerNorm1 × 262144 × 2688
80MoE_13Shared-Expert MoE1 × 262144 × 2688
81Add_13_ffnAdd1 × 262144 × 2688
82LayerNorm_14_1LayerNorm1 × 262144 × 2688
83Attention_14Grouped Query Attn1 × 262144 × 2688
84Add_14_attnAdd1 × 262144 × 2688
85LayerNorm_14_2LayerNorm1 × 262144 × 2688
86MoE_14Shared-Expert MoE1 × 262144 × 2688
87Add_14_ffnAdd1 × 262144 × 2688
88LayerNorm_15_1LayerNorm1 × 262144 × 2688
89Attention_15Grouped Query Attn1 × 262144 × 2688
90Add_15_attnAdd1 × 262144 × 2688
91LayerNorm_15_2LayerNorm1 × 262144 × 2688
92MoE_15Shared-Expert MoE1 × 262144 × 2688
93Add_15_ffnAdd1 × 262144 × 2688
94LayerNorm_16_1LayerNorm1 × 262144 × 2688
95Attention_16Grouped Query Attn1 × 262144 × 2688
96Add_16_attnAdd1 × 262144 × 2688
97LayerNorm_16_2LayerNorm1 × 262144 × 2688
98MoE_16Shared-Expert MoE1 × 262144 × 2688
99Add_16_ffnAdd1 × 262144 × 2688
100LayerNorm_17_1LayerNorm1 × 262144 × 2688
101Attention_17Grouped Query Attn1 × 262144 × 2688
102Add_17_attnAdd1 × 262144 × 2688
103LayerNorm_17_2LayerNorm1 × 262144 × 2688
104MoE_17Shared-Expert MoE1 × 262144 × 2688
105Add_17_ffnAdd1 × 262144 × 2688
106LayerNorm_18_1LayerNorm1 × 262144 × 2688
107Attention_18Grouped Query Attn1 × 262144 × 2688
108Add_18_attnAdd1 × 262144 × 2688
109LayerNorm_18_2LayerNorm1 × 262144 × 2688
110MoE_18Shared-Expert MoE1 × 262144 × 2688
111Add_18_ffnAdd1 × 262144 × 2688
112LayerNorm_19_1LayerNorm1 × 262144 × 2688
113Attention_19Grouped Query Attn1 × 262144 × 2688
114Add_19_attnAdd1 × 262144 × 2688
115LayerNorm_19_2LayerNorm1 × 262144 × 2688
116MoE_19Shared-Expert MoE1 × 262144 × 2688
117Add_19_ffnAdd1 × 262144 × 2688
118LayerNorm_20_1LayerNorm1 × 262144 × 2688
119Attention_20Grouped Query Attn1 × 262144 × 2688
120Add_20_attnAdd1 × 262144 × 2688
121LayerNorm_20_2LayerNorm1 × 262144 × 2688
122MoE_20Shared-Expert MoE1 × 262144 × 2688
123Add_20_ffnAdd1 × 262144 × 2688
124LayerNorm_21_1LayerNorm1 × 262144 × 2688
125Attention_21Grouped Query Attn1 × 262144 × 2688
126Add_21_attnAdd1 × 262144 × 2688
127LayerNorm_21_2LayerNorm1 × 262144 × 2688
128MoE_21Shared-Expert MoE1 × 262144 × 2688
129Add_21_ffnAdd1 × 262144 × 2688
130LayerNorm_22_1LayerNorm1 × 262144 × 2688
131Attention_22Grouped Query Attn1 × 262144 × 2688
132Add_22_attnAdd1 × 262144 × 2688
133LayerNorm_22_2LayerNorm1 × 262144 × 2688
134MoE_22Shared-Expert MoE1 × 262144 × 2688
135Add_22_ffnAdd1 × 262144 × 2688
136LayerNorm_23_1LayerNorm1 × 262144 × 2688
137Attention_23Grouped Query Attn1 × 262144 × 2688
138Add_23_attnAdd1 × 262144 × 2688
139LayerNorm_23_2LayerNorm1 × 262144 × 2688
140MoE_23Shared-Expert MoE1 × 262144 × 2688
141Add_23_ffnAdd1 × 262144 × 2688
142LayerNorm_24_1LayerNorm1 × 262144 × 2688
143Attention_24Grouped Query Attn1 × 262144 × 2688
144Add_24_attnAdd1 × 262144 × 2688
145LayerNorm_24_2LayerNorm1 × 262144 × 2688
146MoE_24Shared-Expert MoE1 × 262144 × 2688
147Add_24_ffnAdd1 × 262144 × 2688
148LayerNorm_25_1LayerNorm1 × 262144 × 2688
149Attention_25Grouped Query Attn1 × 262144 × 2688
150Add_25_attnAdd1 × 262144 × 2688
151LayerNorm_25_2LayerNorm1 × 262144 × 2688
152MoE_25Shared-Expert MoE1 × 262144 × 2688
153Add_25_ffnAdd1 × 262144 × 2688
154LayerNorm_26_1LayerNorm1 × 262144 × 2688
155Attention_26Grouped Query Attn1 × 262144 × 2688
156Add_26_attnAdd1 × 262144 × 2688
157LayerNorm_26_2LayerNorm1 × 262144 × 2688
158MoE_26Shared-Expert MoE1 × 262144 × 2688
159Add_26_ffnAdd1 × 262144 × 2688
160LayerNorm_27_1LayerNorm1 × 262144 × 2688
161Attention_27Grouped Query Attn1 × 262144 × 2688
162Add_27_attnAdd1 × 262144 × 2688
163LayerNorm_27_2LayerNorm1 × 262144 × 2688
164MoE_27Shared-Expert MoE1 × 262144 × 2688
165Add_27_ffnAdd1 × 262144 × 2688
166LayerNorm_28_1LayerNorm1 × 262144 × 2688
167Attention_28Grouped Query Attn1 × 262144 × 2688
168Add_28_attnAdd1 × 262144 × 2688
169LayerNorm_28_2LayerNorm1 × 262144 × 2688
170MoE_28Shared-Expert MoE1 × 262144 × 2688
171Add_28_ffnAdd1 × 262144 × 2688
172LayerNorm_29_1LayerNorm1 × 262144 × 2688
173Attention_29Grouped Query Attn1 × 262144 × 2688
174Add_29_attnAdd1 × 262144 × 2688
175LayerNorm_29_2LayerNorm1 × 262144 × 2688
176MoE_29Shared-Expert MoE1 × 262144 × 2688
177Add_29_ffnAdd1 × 262144 × 2688
178LayerNorm_30_1LayerNorm1 × 262144 × 2688
179Attention_30Grouped Query Attn1 × 262144 × 2688
180Add_30_attnAdd1 × 262144 × 2688
181LayerNorm_30_2LayerNorm1 × 262144 × 2688
182MoE_30Shared-Expert MoE1 × 262144 × 2688
183Add_30_ffnAdd1 × 262144 × 2688
184LayerNorm_31_1LayerNorm1 × 262144 × 2688
185Attention_31Grouped Query Attn1 × 262144 × 2688
186Add_31_attnAdd1 × 262144 × 2688
187LayerNorm_31_2LayerNorm1 × 262144 × 2688
188MoE_31Shared-Expert MoE1 × 262144 × 2688
189Add_31_ffnAdd1 × 262144 × 2688
190LayerNorm_32_1LayerNorm1 × 262144 × 2688
191Attention_32Grouped Query Attn1 × 262144 × 2688
192Add_32_attnAdd1 × 262144 × 2688
193LayerNorm_32_2LayerNorm1 × 262144 × 2688
194MoE_32Shared-Expert MoE1 × 262144 × 2688
195Add_32_ffnAdd1 × 262144 × 2688
196LayerNorm_33_1LayerNorm1 × 262144 × 2688
197Attention_33Grouped Query Attn1 × 262144 × 2688
198Add_33_attnAdd1 × 262144 × 2688
199LayerNorm_33_2LayerNorm1 × 262144 × 2688
200MoE_33Shared-Expert MoE1 × 262144 × 2688
201Add_33_ffnAdd1 × 262144 × 2688
202LayerNorm_34_1LayerNorm1 × 262144 × 2688
203Attention_34Grouped Query Attn1 × 262144 × 2688
204Add_34_attnAdd1 × 262144 × 2688
205LayerNorm_34_2LayerNorm1 × 262144 × 2688
206MoE_34Shared-Expert MoE1 × 262144 × 2688
207Add_34_ffnAdd1 × 262144 × 2688
208LayerNorm_35_1LayerNorm1 × 262144 × 2688
209Attention_35Grouped Query Attn1 × 262144 × 2688
210Add_35_attnAdd1 × 262144 × 2688
211LayerNorm_35_2LayerNorm1 × 262144 × 2688
212MoE_35Shared-Expert MoE1 × 262144 × 2688
213Add_35_ffnAdd1 × 262144 × 2688
214LayerNorm_36_1LayerNorm1 × 262144 × 2688
215Attention_36Grouped Query Attn1 × 262144 × 2688
216Add_36_attnAdd1 × 262144 × 2688
217LayerNorm_36_2LayerNorm1 × 262144 × 2688
218MoE_36Shared-Expert MoE1 × 262144 × 2688
219Add_36_ffnAdd1 × 262144 × 2688
220LayerNorm_37_1LayerNorm1 × 262144 × 2688
221Attention_37Grouped Query Attn1 × 262144 × 2688
222Add_37_attnAdd1 × 262144 × 2688
223LayerNorm_37_2LayerNorm1 × 262144 × 2688
224MoE_37Shared-Expert MoE1 × 262144 × 2688
225Add_37_ffnAdd1 × 262144 × 2688
226LayerNorm_38_1LayerNorm1 × 262144 × 2688
227Attention_38Grouped Query Attn1 × 262144 × 2688
228Add_38_attnAdd1 × 262144 × 2688
229LayerNorm_38_2LayerNorm1 × 262144 × 2688
230MoE_38Shared-Expert MoE1 × 262144 × 2688
231Add_38_ffnAdd1 × 262144 × 2688
232LayerNorm_39_1LayerNorm1 × 262144 × 2688
233Attention_39Grouped Query Attn1 × 262144 × 2688
234Add_39_attnAdd1 × 262144 × 2688
235LayerNorm_39_2LayerNorm1 × 262144 × 2688
236MoE_39Shared-Expert MoE1 × 262144 × 2688
237Add_39_ffnAdd1 × 262144 × 2688
238LayerNorm_40_1LayerNorm1 × 262144 × 2688
239Attention_40Grouped Query Attn1 × 262144 × 2688
240Add_40_attnAdd1 × 262144 × 2688
241LayerNorm_40_2LayerNorm1 × 262144 × 2688
242MoE_40Shared-Expert MoE1 × 262144 × 2688
243Add_40_ffnAdd1 × 262144 × 2688
244LayerNorm_41_1LayerNorm1 × 262144 × 2688
245Attention_41Grouped Query Attn1 × 262144 × 2688
246Add_41_attnAdd1 × 262144 × 2688
247LayerNorm_41_2LayerNorm1 × 262144 × 2688
248MoE_41Shared-Expert MoE1 × 262144 × 2688
249Add_41_ffnAdd1 × 262144 × 2688
250LayerNorm_42_1LayerNorm1 × 262144 × 2688
251Attention_42Grouped Query Attn1 × 262144 × 2688
252Add_42_attnAdd1 × 262144 × 2688
253LayerNorm_42_2LayerNorm1 × 262144 × 2688
254MoE_42Shared-Expert MoE1 × 262144 × 2688
255Add_42_ffnAdd1 × 262144 × 2688
256LayerNorm_43_1LayerNorm1 × 262144 × 2688
257Attention_43Grouped Query Attn1 × 262144 × 2688
258Add_43_attnAdd1 × 262144 × 2688
259LayerNorm_43_2LayerNorm1 × 262144 × 2688
260MoE_43Shared-Expert MoE1 × 262144 × 2688
261Add_43_ffnAdd1 × 262144 × 2688
262LayerNorm_44_1LayerNorm1 × 262144 × 2688
263Attention_44Grouped Query Attn1 × 262144 × 2688
264Add_44_attnAdd1 × 262144 × 2688
265LayerNorm_44_2LayerNorm1 × 262144 × 2688
266MoE_44Shared-Expert MoE1 × 262144 × 2688
267Add_44_ffnAdd1 × 262144 × 2688
268LayerNorm_45_1LayerNorm1 × 262144 × 2688
269Attention_45Grouped Query Attn1 × 262144 × 2688
270Add_45_attnAdd1 × 262144 × 2688
271LayerNorm_45_2LayerNorm1 × 262144 × 2688
272MoE_45Shared-Expert MoE1 × 262144 × 2688
273Add_45_ffnAdd1 × 262144 × 2688
274LayerNorm_46_1LayerNorm1 × 262144 × 2688
275Attention_46Grouped Query Attn1 × 262144 × 2688
276Add_46_attnAdd1 × 262144 × 2688
277LayerNorm_46_2LayerNorm1 × 262144 × 2688
278MoE_46Shared-Expert MoE1 × 262144 × 2688
279Add_46_ffnAdd1 × 262144 × 2688
280LayerNorm_47_1LayerNorm1 × 262144 × 2688
281Attention_47Grouped Query Attn1 × 262144 × 2688
282Add_47_attnAdd1 × 262144 × 2688
283LayerNorm_47_2LayerNorm1 × 262144 × 2688
284MoE_47Shared-Expert MoE1 × 262144 × 2688
285Add_47_ffnAdd1 × 262144 × 2688
286LayerNorm_48_1LayerNorm1 × 262144 × 2688
287Attention_48Grouped Query Attn1 × 262144 × 2688
288Add_48_attnAdd1 × 262144 × 2688
289LayerNorm_48_2LayerNorm1 × 262144 × 2688
290MoE_48Shared-Expert MoE1 × 262144 × 2688
291Add_48_ffnAdd1 × 262144 × 2688
292LayerNorm_49_1LayerNorm1 × 262144 × 2688
293Attention_49Grouped Query Attn1 × 262144 × 2688
294Add_49_attnAdd1 × 262144 × 2688
295LayerNorm_49_2LayerNorm1 × 262144 × 2688
296MoE_49Shared-Expert MoE1 × 262144 × 2688
297Add_49_ffnAdd1 × 262144 × 2688
298LayerNorm_50_1LayerNorm1 × 262144 × 2688
299Attention_50Grouped Query Attn1 × 262144 × 2688
300Add_50_attnAdd1 × 262144 × 2688
301LayerNorm_50_2LayerNorm1 × 262144 × 2688
302MoE_50Shared-Expert MoE1 × 262144 × 2688
303Add_50_ffnAdd1 × 262144 × 2688
304LayerNorm_51_1LayerNorm1 × 262144 × 2688
305Attention_51Grouped Query Attn1 × 262144 × 2688
306Add_51_attnAdd1 × 262144 × 2688
307LayerNorm_51_2LayerNorm1 × 262144 × 2688
308MoE_51Shared-Expert MoE1 × 262144 × 2688
309Add_51_ffnAdd1 × 262144 × 2688
310LayerNorm_52_1LayerNorm1 × 262144 × 2688
311Attention_52Grouped Query Attn1 × 262144 × 2688
312Add_52_attnAdd1 × 262144 × 2688
313LayerNorm_52_2LayerNorm1 × 262144 × 2688
314MoE_52Shared-Expert MoE1 × 262144 × 2688
315Add_52_ffnAdd1 × 262144 × 2688
316Final_LayerNormLayerNorm1 × 262144 × 2688
317LM_HeadLinear1 × 262144 × 131072
318OutputOutput1 × 262144 × 131072

What the verifier says

infoAt 52 stacked attention layers, residual-branch outputs add up; unscaled init lets activation variance grow with depth. GPT-2/LLaMA-family models scale the residual projections by depth (N(0, 0.02 / √(2L))). Fix: Scale residual output projections by depth: nn.init.normal_(w, std=0.02 / math.sqrt(2 * n_layers))
deep-attention-default-init

Do this to your own model

Same numbers, on a model in your repo, in one command. No account.

pip install neurarch-trace
neurarch-trace nvidia/NVIDIA-Nemotron-3-Nano-30B-A3B-NVFP4 --plan --share

Other nemotron_h checkpoints

NVIDIA-Nemotron-3-Nano-30B-A3B-BF16
102B derived · +224% against the checkpoint
NVIDIA-Nemotron-3-Nano-30B-A3B-FP8
102B derived · +224% against the checkpoint
NVIDIA-Nemotron-3-Super-120B-A12B-BF16
1496B derived · +1110% against the checkpoint
NVIDIA-Nemotron-3-Super-120B-A12B-FP8
1496B derived · +1110% against the checkpoint