completed
soda_chat_20260306091039_ufr7
88.33M parameter nanochat model — bpe-chat-4k tokenizer, 16L/512D/8H
Overview
88.33M
Parameters
8.3453
Final Loss
-
Best Val Loss
4210.2
Perplexity
10,240
Tokens Processed
0.0
Tokens/Param
2,032 tok/s
Avg Throughput
5s
Training Time
Training Progress5 / 5 steps (100.0%)
Loss reduced by 0.6% from initial 8.3956
Dataset & Training
Domainnanochat
Tokenizerbpe-chat-4k
Total Iterations5
Batch Size4
Context Length512 tokens
Tokens per Batch2,048
Dataset Passes~0
Effective Tokens10,240
Training Pipeline
Warmupsteps 1–1
Learning rate warmup — model weights adjusting to data distribution
Loss: 8.396 → 8.396Linear LR warmup, gradient clipping
Rapid Descentsteps 1–2
Steepest loss reduction — model learning primary patterns
Loss: 8.396 → 8.422Cosine LR schedule, AdamW optimization
Refinementsteps 2–4
Diminishing returns — model fine-tuning subtler patterns
Loss: 8.422 → 8.367Lower LR, gradient accumulation
Convergencesteps 4–5
Approaching minimum — model capacity saturation
Loss: 8.367 → 8.345Minimum LR, weight decay regularization
Training Metrics
Loss Curve
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Smoothed Loss
Perplexity
Learning Rate
Gradient Norm
Throughput (tok/s)
Timing Breakdown
No Telemetry
Model Architecture
Model Configuration
ArchitectureGPT (decoder-only transformer)
Parameters88.33M
Layers16
Embedding Dim512
Attention Heads8
Head Dim64
FFN Dim2048
FFN Activationswiglu
Vocab Size4,000
Context Length512 tokens
Dropout0
Training Configuration
Optimizeradamw
Learning Rate0.0006
LR Min0.00006
LR ScheduleCosine decay
Warmup Steps500
Batch Size4
Grad Accum Steps1
Effective Batch4
Grad Clip1
Weight Decay0.1
Backendhelios
Tokenizerbpe-chat-4k
Seed42
Layer Structure
Token Embed
4,000×512
Pos Embed
512×512
Block 0
Attn+FFN
Block 1
Attn+FFN
Block 2
Attn+FFN
Block 3
Attn+FFN
Block 4
Attn+FFN
Block 5
Attn+FFN
LayerNorm
512
LM Head
512×4,000
Generated Samples
No samples generated yet. Samples appear at configured intervals during training.
Checkpoints
| Step | File | Size | Date |
|---|---|---|---|
| 5 | checkpoint-5.json | 303.3 MB | Mar 6, 2026 1:05 PM |
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