A
Alpha
stale

super_chat_20260306143657_ns34

55.77M parameter nanochat model — bpe-chat-4k tokenizer, 16L/512D/8H

Overview

55.77M
Parameters
6.9962
Final Loss
-
Best Val Loss
1092.5
Perplexity
299,008
Tokens Processed
0.0
Tokens/Param
1,215 tok/s
Avg Throughput
4m 8s
Training Time
Training Progress146 / 200 steps (73.0%)
Loss reduced by 16.6% from initial 8.3936

Dataset & Training

Domainnanochat
Tokenizerbpe-chat-4k
Total Iterations200
Batch Size4
Context Length512 tokens
Tokens per Batch2,048
Dataset Passes~1
Effective Tokens299,008

Training Pipeline

Warmupsteps 12

Learning rate warmup — model weights adjusting to data distribution

Loss: 8.3948.396Linear LR warmup, gradient clipping
Rapid Descentsteps 261

Steepest loss reduction — model learning primary patterns

Loss: 8.3966.767Cosine LR schedule, AdamW optimization
Refinementsteps 61141

Diminishing returns — model fine-tuning subtler patterns

Loss: 6.7677.082Lower LR, gradient accumulation
Convergencesteps 141146

Approaching minimum — model capacity saturation

Loss: 7.0826.996Minimum 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)
Parameters55.77M
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
...10 more
LayerNorm
512
LM Head
512×4,000

Generated Samples

No samples generated yet. Samples appear at configured intervals during training.

Checkpoints

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