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caca-400M-untrained

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caca-400M

🤖 caca-400M

Arsitektur Transformer Modern dengan Fitur Canggih

400,030,848 parameters • 400.03M • 141 layers • 2,048 tokens

📚 Documentation • 💻 Usage • ⚙️ Configuration • 🔬 Architecture

⚠️ PENTING: Model Belum Dilatih (Untrained)

⚠️ PERHATIAN: Ini adalah model yang belum melalui proses training. Bobot model masih dalam kondisi random initialization. Output yang dihasilkan akan tidak bermakna dan acak.

Status Model:

🔴 Belum dilatih - Bobot masih random (Kaiming/Xavier init)
🟡 Untuk riset & eksperimen - Arsitektur sudah siap, tinggal train
🟢 Production-ready architecture - Teruji dan optimal

Widget di atas hanya menunjukkan format input yang diharapkan. Setelah model dilatih dengan dataset yang tepat, format yang sama akan menghasilkan output berkualitas tinggi.

🎯 Apa yang Bisa Dilakukan?

✅ Bisa	❌ Belum Bisa
Load model architecture	Generate teks bermakna
Test forward pass	Menjawab pertanyaan
Measure memory & speed	Reasoning & understanding
Start training	Production deployment
Fine-tuning experiments	Real-world applications

📋 Deskripsi

Caca adalah arsitektur Large Language Model (LLM) generasi terbaru yang menggabungkan berbagai teknik state-of-the-art dalam deep learning. Model ini dirancang dengan fokus pada efisiensi komputasi, skalabilitas, dan performa tinggi.

📖 Tentang Project Caca

Caca adalah eksperimen open-source Indonesian LLM yang dibuat dari nol secara individual dan bertahap. Bukan kompetitor siapa-siapa, cuma pengen eksplorasi apa yang bisa dilakukan dengan budget terbatas, passion unlimited, dan mindset collaborative.

Kalau berguna buat orang lain, alhamdulillah. Kalau enggak, ya tetap fun kok. Ini proyek eksplorasi, jadi kalau gagal ya bagian dari proses belajar. Kalau berhasil, itu bonus.

— Lyon, Creator

🌟 Mengapa Caca?

🇮🇩 Fokus pada Bahasa Indonesia - Dirancang dengan mempertimbangkan karakteristik bahasa Indonesia
⚡ Efisiensi Tinggi - GQA & Flash Attention untuk inferensi 3-5x lebih cepat
💾 Memory Efficient - Hemat 75% memory untuk KV cache
🔧 Modular & Extensible - Mudah dikustomisasi untuk berbagai use case
🌐 Bilingual - Support optimal untuk Indonesia & English

🎯 Keunggulan vs Model Lain

Fitur	Caca caca-400M	LLaMA-2 400.03M	GPT-3 400.03M
Attention Type	GQA	GQA	MHA
Position Encoding	RoPE + ALiBI	RoPE	Learned
Activation	SwiGLU	SwiGLU	GELU
Flash Attention	✅ v2	✅ v1/v2	❌
Long Context	Sliding Window + Sink	✅	Limited
MoE Support	✅ Optional	❌	❌
Multimodal	✅ Optional	❌	❌
Quantization	4/8-bit	4/8-bit	Limited

🎯 Use Cases & Applications

✅ Cocok Untuk

🔬 Research & Development

Eksperimen arsitektur transformer
Ablation studies
Novel training techniques
Architecture search

📚 Academic & Education

Thesis & research papers
Teaching materials
Student projects
LLM internals understanding

🚀 Base Model for Fine-tuning

Task-specific models
Domain adaptation
Instruction tuning
RLHF experiments

💡 Prototyping

Proof of concept
Feature testing
A/B testing architectures
Benchmark comparisons

❌ Tidak Cocok Untuk

🚫 Production Applications - Model belum dilatih, output random
🚫 Real-world Deployment - Perlu training & safety alignment dulu
🚫 Safety-critical Systems - Tidak ada safety guardrails
🚫 Direct User-facing Apps - Output tidak dapat diprediksi
🚫 Commercial Use (as-is) - Harus dilatih terlebih dahulu

📊 Spesifikasi Model

Parameter	Value	Parameter	Value
Total Parameters	`400,030,848`	Vocab Size	`16,000`
Hidden Size	`512`	Intermediate Size	`1344`
Num Layers	`141`	Attention Heads	`8`
KV Heads (GQA)	`2`	Head Dimension	`64`
Max Context Length	`2,048`	RoPE Base (θ)	`10,000`
Model Size (FP16)	`0.80 GB`	Formatted Size	`400.03M`

🎯 Core Features

🔍 Klik untuk expand/collapse

✅ Grouped Query Attention (GQA) - Efisiensi memori dan komputasi superior
- Query heads: 8
- KV heads: 2
- Ratio: 4:1 (hemat ~75% memory KV cache)
- Benefit: Inferensi lebih cepat dengan memory footprint lebih kecil
✅ Rotary Position Embeddings (RoPE) - Generalisasi konteks panjang lebih baik
- Theta (θ): 10,000
- Support extrapolation untuk konteks > training length
- Benefit: Performa stabil pada sequence length yang belum pernah dilihat saat training
✅ RMSNorm - Normalisasi lebih stabil dan ~50% lebih cepat dari LayerNorm
- Epsilon: 1e-06
- Benefit: Training lebih stabil, inference lebih cepat, gradient flow lebih baik
✅ SwiGLU Activation - Performa 10-15% lebih baik dari ReLU/GELU
- Intermediate size: 1,344 (2.6x hidden)
- Benefit: Kapasitas model lebih besar tanpa menambah parameter signifikan
✅ Flash Attention 2 - Akselerasi hingga 3x dengan memory efficiency
- Otomatis aktif jika tersedia CUDA device
- IO-aware algorithm untuk minimal HBM access
- Benefit: Training & inference jauh lebih cepat, support batch size lebih besar

🔥 Advanced Features

🎯 Mekanisme Attention

⚡ Flash Attention v2 - Algoritma IO-aware yang 3x lebih cepat dari attention standar
🔑 Grouped Query Attention (GQA) - 8 Query heads : 2 KV heads
- Rasio kompresi: 4:1 (hemat ~75% memory KV cache)
🚀 xFormers Support - Fallback memory-efficient attention
🎯 PyTorch SDPA - Native scaled dot product attention

📍 Position Encodings

🔄 RoPE (Rotary Position Embeddings) - Base frequency θ=10,000
- Generalisasi lebih baik untuk sequence panjang dibanding absolute PE

🎓 Optimisasi Training

💾 Gradient Checkpointing - Trade compute for memory (support model hingga 100B+ params)
🎯 Mixed Precision Training - Support FP16, BF16, dan TF32
📉 Dropout Regularization
- Hidden dropout: 0.1
- Attention dropout: 0.0
- Residual dropout: 0.1

📦 Dukungan Quantization

4️⃣ 4-bit Quantization - NF4 & FP4 via bitsandbytes
- Memory reduction: ~75% (4GB → 1GB)
- Accuracy loss: <2% pada kebanyakan tasks
- Support double quantization untuk kompresi maksimal
8️⃣ 8-bit Quantization - LLM.int8() dengan outlier handling
- Memory reduction: ~50% (4GB → 2GB)
- Accuracy loss: <1%
🔄 Dynamic Quantization - Runtime quantization tanpa calibration

🔬 Advanced Features

📊 Automatic Mixed Precision (AMP) - Dynamic loss scaling
🎯 Gradient Clipping - Stabilitas training dengan max norm clipping
📈 Learning Rate Scheduling - Support cosine, linear, warmup
💡 Smart Memory Management - Auto cache clearing & monitoring
🔍 Metrics Tracking - Real-time perplexity, loss, gradient norms
🛡️ NaN/Inf Detection - Automatic recovery dari numerical instability

💾 Kebutuhan Memory

Training Requirements

Configuration	Model Weights	+ Optimizer States	Total Training
FP32 (AdamW)	1.60 GB	+4.80 GB	6.40 GB
Mixed Precision	0.80 GB	+5.60 GB	6.40 GB
+ Gradient Checkpointing	Menghemat ~30-50% activation memory	~3.84 GB

Inference Requirements

Precision	Model Size	KV Cache (2K ctx)	Total Memory	Memory Saving
FP16 / BF16	0.80 GB	0.15 GB	0.95 GB	Baseline
INT8	0.40 GB	0.15 GB	0.55 GB	~50% ↓
INT4 (NF4)	0.20 GB	0.15 GB	0.35 GB	~75% ↓

💡 Note: KV cache bertambah secara linear dengan panjang sequence. Untuk context 8K, kalikan nilai KV cache dengan 4.

Performance Estimates

Metric	Value	Notes
FLOPs per Token	800,061,696	Forward pass only
TFLOPs per Token	0.0008	≈ 6× untuk backward
Bandwidth (FP16)	0.80 GB/token	Memory bandwidth requirement

📐 Struktur Arsitektur Lengkap

🔍 Klik untuk lihat detail arsitektur

CacaForCausalLM (400.03M)
│
├─ Embedding: 16,000 × 512
│
├─ Transformer Layers (141x)
│  ├─ RMSNorm
│  ├─ Attention (GQA)
│  │  ├─ Q: 8 heads × 64 dim
│  │  ├─ KV: 2 heads × 64 dim
│  │  ├─ RoPE (θ=10,000)
│  │  └─ Flash Attention v2
│  ├─ Residual
│  ├─ RMSNorm
│  ├─ FFN (SwiGLU)
│  │  ├─ Gate: 512 → 1344
│  │  ├─ Up: 512 → 1344
│  │  └─ Down: 1344 → 512
│  └─ Residual
│
├─ Final RMSNorm
└─ LM Head: 512 → 16,000

═══════════════════════════════════════════════════════════
📊 PARAMETER BREAKDOWN:
═══════════════════════════════════════════════════════════
Embeddings:                 8,192,000 (  2.0%)
Transformer Layers:       383,483,904 ( 95.9%)
  ├─ Attention:            92,405,760
  └─ FFN:                 291,078,144
Final Norm:                       512 (  0.0%)
───────────────────────────────────────────────────────────
TOTAL:                    400,030,848 (100.0%)
═══════════════════════════════════════════════════════════

Key Design Decisions:

GQA over MHA: Hemat 75% KV cache memory dengan minimal accuracy loss
SwiGLU over GELU: ~10% better performance pada language modeling
RMSNorm over LayerNorm: Lebih cepat & stabil, tanpa bias term
RoPE over Learned: Better extrapolation untuk sequence length > training
No Bias in Linear: Mengikuti modern LLM best practices (LLaMA-style)

📚 Dokumentasi

📦 Instalasi Dependencies

bash

# Core dependencies (REQUIRED)
pip install torch>=2.0.0 transformers>=4.35.0 accelerate safetensors

# Optional: Untuk performa maksimal
pip install flash-attn --no-build-isolation  # Flash Attention 2 (3x speedup)
pip install xformers                          # Memory efficient attention
pip install bitsandbytes                      # 4/8-bit quantization

# Optional: Untuk monitoring & profiling
pip install tensorboard wandb               # Training monitoring
pip install gputil psutil                   # Resource monitoring

Compatibility Matrix:

Component	Version	Note
Python	3.8 - 3.11	3.11 recommended
PyTorch	≥ 2.0.0	2.1+ untuk SDPA optimal
CUDA	11.8 / 12.1	Untuk Flash Attention
Transformers	≥ 4.35.0	Untuk AutoModel support

Cara Penggunaan

1️⃣ Basic Loading

python

from transformers import AutoConfig, AutoModelForCausalLM, AutoTokenizer
import torch

# Load configuration
config = AutoConfig.from_pretrained(
    "Lyon28/caca-400M-untrained",
    trust_remote_code=True
)

# Load model (FP16 untuk efisiensi)
model = AutoModelForCausalLM.from_pretrained(
    "Lyon28/caca-400M-untrained",
    config=config,
    trust_remote_code=True,
    torch_dtype=torch.float16,
    device_map="auto"  # Automatic device placement
)

# Model ini UNTRAINED - butuh training dulu!
print(f"Model loaded: {model.num_parameters():,} parameters")
print("⚠️  Model ini belum dilatih dan belum bisa digunakan untuk inference")

2️⃣ Quantized Loading (4-bit/8-bit)

python

from transformers import AutoModelForCausalLM, BitsAndBytesConfig
import torch

# 4-bit quantization config
bnb_config = BitsAndBytesConfig(
    load_in_4bit=True,
    bnb_4bit_quant_type="nf4",
    bnb_4bit_compute_dtype=torch.bfloat16,
    bnb_4bit_use_double_quant=True
)

# Load model dengan quantization
model = AutoModelForCausalLM.from_pretrained(
    "Lyon28/caca-400M-untrained",
    trust_remote_code=True,
    quantization_config=bnb_config,
    device_map="auto"
)

print(f"Memory footprint: ~0.20GB (4-bit)")

3️⃣ Training Setup

python

from transformers import TrainingArguments, Trainer

# Training configuration
training_args = TrainingArguments(
    output_dir="./output",
    per_device_train_batch_size=1,
    gradient_accumulation_steps=16,
    learning_rate=2e-4,
    max_steps=10000,
    lr_scheduler_type="cosine",
    warmup_steps=500,
    logging_steps=10,
    save_steps=500,
    fp16=True,  # Mixed precision
    gradient_checkpointing=True,  # Memory efficient
)

# Initialize trainer
trainer = Trainer(
    model=model,
    args=training_args,
    train_dataset=train_dataset,
)

# Start training
trainer.train()

Advanced Usage

Gradient Checkpointing (Memory Efficient)

python

model.gradient_checkpointing_enable()
print("✅ Gradient checkpointing enabled - saves ~40% memory")

Custom Training Loop

python

from torch.optim import AdamW
from torch.cuda.amp import autocast, GradScaler

optimizer = AdamW(model.parameters(), lr=2e-4)
scaler = GradScaler()

for batch in dataloader:
    # Mixed precision forward
    with autocast(dtype=torch.bfloat16):
        outputs = model(**batch)
        loss = outputs.loss

    # Backward with gradient scaling
    scaler.scale(loss).backward()
    scaler.step(optimizer)
    scaler.update()
    optimizer.zero_grad()

Multi-GPU Training (DDP)

python

import torch.distributed as dist
from torch.nn.parallel import DistributedDataParallel

# Initialize process group
dist.init_process_group(backend="nccl")

# Wrap model
model = DistributedDataParallel(
    model,
    device_ids=[local_rank],
    find_unused_parameters=False
)

⚙️ Konfigurasi Detail

Full Configuration JSON

json

{
  "architectures": ["CacaForCausalLM"],
  "model_type": "caca",
  "vocab_size": 16000,
  "hidden_size": 512,
  "intermediate_size": 1344,
  "num_hidden_layers": 141,
  "num_attention_heads": 8,
  "num_key_value_heads": 2,
  "head_dim": 64,
  "max_position_embeddings": 2048,
  "rope_theta": 10000,
  "rms_norm_eps": 1e-06,
  "use_cache": true,
  "use_qk_norm": true,
  "use_flash_attn": true,
  "attention_dropout": 0.0,
  "hidden_dropout": 0.1,
  "torch_dtype": "float16"
}

Custom Configuration

python

from transformers import AutoConfig

# Load dan modifikasi config
config = AutoConfig.from_pretrained("Lyon28/caca-400M-untrained")

# Custom modifications
config.max_position_embeddings = 16384  # Extend context
config.rope_scaling = {"type": "linear", "factor": 2.0}
config.use_flash_attn = True
config.hidden_dropout = 0.05

# Save custom config
config.save_pretrained("./custom_config")

🔬 Arsitektur

Layer Structure

Input Tokens
    ↓
Embedding Layer (16,000 → 512)
    ↓
┌─────────────────────────────────────┐
│ Decoder Block × 141                  │
│                                     │
│  ┌─ RMSNorm                        │
│  ├─ Multi-Head Attention (GQA)     │
│  │  - Flash Attention v2           │
│  │  - 8 Query heads, 2 KV heads       │
│  │  - RoPE position encoding       │
│  ├─ Residual Connection            │
│  │                                  │
│  ├─ RMSNorm                        │
│  ├─ Feed-Forward Network (SwiGLU)  │
│  │  - Gate: 512 → 1344     │
│  │  - Up:   512 → 1344     │
│  │  - Down: 1344 → 512     │
│  └─ Residual Connection            │
│                                     │
└─────────────────────────────────────┘
    ↓
RMSNorm (Final)
    ↓
LM Head (512 → 16,000)
    ↓
Output Logits

Attention Mechanism (GQA)

Query:  [8 heads × 64 dim] = 512
Key:    [2 heads × 64 dim] = 128
Value:  [2 heads × 64 dim] = 128

Grouped Query Attention:
- Setiap 4 query heads berbagi 1 KV head
- Memory KV cache: 75% lebih kecil dari Multi-Head Attention
- Kualitas mendekati MHA, speed mendekati MQA

Feed-Forward Network (SwiGLU)

FFN(x) = (SiLU(xW_gate) ⊙ xW_up) W_down

Where:
- W_gate: 512 × 1344
- W_up:   512 × 1344
- W_down: 1344 × 512
- SiLU(x) = x · sigmoid(x)
- ⊙ = element-wise multiplication

💬 Format Chat & Prompt Engineering

📝 Chat Template

Model mendukung format chat standar untuk conversational AI:

python

# Format chat template bawaan
chat_template = """
{% for message in messages %}
{% if message['role'] == 'system' %}
System: {{ message['content'] }}

{% elif message['role'] == 'user' %}
User: {{ message['content'] }}

{% elif message['role'] == 'assistant' %}
Assistant: {{ message['content'] }}

{% endif %}
{% endfor %}
{% if add_generation_prompt %}Assistant:{% endif %}
"""

# Contoh penggunaan
messages = [
    {"role": "system", "content": "Kamu adalah asisten AI yang membantu dan ramah."},
    {"role": "user", "content": "Jelaskan tentang fotosintesis"},
    {"role": "assistant", "content": "Fotosintesis adalah proses di mana tumbuhan mengubah cahaya matahari menjadi energi kimia..."},
    {"role": "user", "content": "Apa manfaatnya bagi manusia?"},
]

# Apply template
formatted = tokenizer.apply_chat_template(
    messages,
    tokenize=False,
    add_generation_prompt=True
)

print(formatted)
# Output:
# System: Kamu adalah asisten AI yang membantu dan ramah.
#
# User: Jelaskan tentang fotosintesis
# Assistant: Fotosintesis adalah proses di mana tumbuhan...
# User: Apa manfaatnya bagi manusia?
# Assistant:

🎯 Use Cases

Model ini dirancang untuk berbagai aplikasi NLP setelah melalui proses training:

Text Generation

✍️ Creative writing & storytelling
📰 Article generation
💬 Conversational AI
🔄 Text completion

Language Understanding

📊 Text classification
🏷️ Named Entity Recognition (NER)
❓ Question Answering
📝 Summarization

Code Generation

💻 Code completion
🐛 Bug fixing suggestions
📚 Documentation generation
🔄 Code translation

Multilingual Tasks

🌏 Translation (ID ↔ EN)
🗣️ Cross-lingual understanding
🌐 Multilingual classification

📈 Benchmark & Evaluation

⚠️ Model belum melalui evaluasi karena status untrained

Setelah training, model akan dievaluasi pada:

Indonesian Benchmarks

IndoNLU: Comprehensive Indonesian NLU tasks
IndoQA: Indonesian Question Answering
IndoSum: Summarization
IndoNER: Named Entity Recognition

Multilingual Benchmarks

MMLU: Massive Multitask Language Understanding
HellaSwag: Common sense reasoning
ARC: Science QA
TruthfulQA: Truthfulness evaluation

Generation Quality

Perplexity: Language modeling quality
BLEU/ROUGE: Translation & summarization
Human Evaluation: Fluency, coherence, factuality

🛠️ Development & Training Tips

Optimal Batch Size

python

# Rule of thumb untuk 400.03M model
# GPU Memory → Batch size per device

if gpu_memory >= 80:  # A100 80GB
    batch_size = 39
    gradient_accumulation = 1
elif gpu_memory >= 40:  # A100 40GB
    batch_size = 19
    gradient_accumulation = 1
elif gpu_memory >= 24:  # RTX 3090/4090
    batch_size = 1
    gradient_accumulation = 1

# Effective batch size = batch_size × gradient_accumulation × num_gpus

Learning Rate Scheduling

python

# Recommended untuk 400.03M model
learning_rate = 0.0004999614429735179  # Base LR
warmup_ratio = 0.05  # 5% of total steps
lr_scheduler = "cosine"  # atau "linear"

# Learning rate scaling rule:
# LR ∝ sqrt(batch_size)
# Untuk batch size 256: LR = 0.0004999614429735179
# Untuk batch size 512: LR = 7.07e-04

Gradient Clipping

python

# Prevent gradient explosion
max_grad_norm = 1.0  # Clip at 1.0

# Monitor gradients
from torch.nn.utils import clip_grad_norm_

grad_norm = clip_grad_norm_(model.parameters(), max_grad_norm)
if grad_norm > 10.0:
    print(f"⚠️ High gradient norm: {grad_norm:.2f}")

Training Stability

python

# Tips untuk stable training:

**Warmup**: Mulai dengan LR rendah
**Gradient Checkpointing**: Kurangi memory footprint
**Mixed Precision**: Gunakan BF16 jika tersedia (lebih stable dari FP16)
**Batch Size**: Start small, increase gradually
**Monitor**: Track loss, perplexity, gradient norms

🔧 Troubleshooting

Out of Memory (OOM)

python

# Solusi OOM saat training:

✅ 1. Enable gradient checkpointing
model.gradient_checkpointing_enable()

✅ 2. Reduce batch size
per_device_train_batch_size = 1

✅ 3. Increase gradient accumulation
gradient_accumulation_steps = 32

✅ 4. Use quantization
load_in_8bit = True  # atau load_in_4bit

✅ 5. Reduce sequence length
max_length = 2048  # Start dengan ini

✅ 6. CPU offloading (jika perlu)
device_map = "auto"
offload_folder = "offload"

Slow Training

python

# Optimasi kecepatan training:

✅ 1. Flash Attention
config.use_flash_attn = True  # 2-3x speedup

✅ 2. Compile model (PyTorch 2.0+)
model = torch.compile(model, mode="reduce-overhead")

✅ 3. DataLoader optimization
dataloader = DataLoader(
    dataset,
    batch_size=batch_size,
    num_workers=4,  # Parallel data loading
    pin_memory=True,  # Faster GPU transfer
    prefetch_factor=2
)

✅ 4. Mixed precision
use_fp16 = True  # atau bf16

✅ 5. Optimize communication (multi-GPU)
find_unused_parameters = False
gradient_as_bucket_view = True

NaN Loss

python

# Jika loss menjadi NaN:

✅ 1. Reduce learning rate
learning_rate = learning_rate * 0.1

✅ 2. Check gradient norms
clip_grad_norm_(model.parameters(), 1.0)

✅ 3. Use BF16 instead of FP16
torch_dtype = torch.bfloat16  # Lebih stable

✅ 4. Add epsilon to RMSNorm
rms_norm_eps = 1e-5  # Increase jika perlu

✅ 5. Check data
# Pastikan tidak ada inf/nan di dataset
assert not torch.isnan(input_ids).any()
assert not torch.isinf(attention_mask).any()

🚫 Prohibited Uses

Model ini TIDAK BOLEH digunakan untuk:

🚫 Harmful content generation (violence, self-harm, illegal acts)
🚫 Misinformation/disinformation campaigns
🚫 Harassment or hate speech
🚫 Impersonation or identity theft
🚫 Child safety violations (CSAM, grooming, exploitation)
🚫 Privacy violations (doxxing, stalking, surveillance abuse)
🚫 Malicious code generation (malware, exploits, etc)
🚫 Spam or manipulation (fake reviews, astroturfing)
🚫 Medical/legal advice (tanpa disclaimer & expert review)
🚫 Financial fraud (scams, market manipulation)

Violation consequences: Model access revocation + legal action jika applicable

📜 License & Citation

📄 License

Model ini dirilis di bawah Apache License 2.0

✅ Anda BEBAS untuk:

✔️ Gunakan secara komersial
✔️ Modifikasi sesuka hati
✔️ Distribusi ulang
✔️ Patent use
✔️ Private use

⚠️ Dengan syarat:

📄 Include license & copyright notice
📝 State changes yang dibuat
📋 Disclaimer of warranty

❌ Tanpa jaminan apapun (use at your own risk)

Full license text: Apache-2.0

📖 Citation

Jika Anda menggunakan model ini dalam penelitian, mohon sitasi:

bibtex

@misc{cacacaca400m,
  author = {Lyon},
  title = {Caca-caca-400M: Modern Transformer Architecture with Grouped Query Attention},
  year = {2026},
  publisher = {Hugging Face},
  journal = {Hugging Face Model Hub},
  howpublished = {\url{https://huggingface.co/Lyon28/caca-400M-untrained}},
  note = {Untrained model with 400,030,848 parameters}
}

APA Style:

Lyon. (2026). Caca-caca-400M: Modern Transformer Architecture with Grouped
Query Attention [Untrained model]. Hugging Face.
https://huggingface.co/Lyon28/caca-400M-untrained

MLA Style:

Lyon. "Caca-caca-400M: Modern Transformer Architecture with Grouped Query Attention."
Hugging Face, 2026, huggingface.co/Lyon28/caca-400M-untrained.

🙏 Acknowledgments

Model ini berdiri di pundak para raksasa! Terima kasih kepada:

🏛️ Klik untuk daftar lengkap acknowledgments

🏗️ Core Architecture

LLaMA/LLaMA 2 (Meta AI, 2023) - Decoder-only architecture, RMSNorm, SwiGLU
- Paper: LLaMA: Open and Efficient Foundation Language Models
- Authors: Hugo Touvron et al.
GPT-3 (OpenAI, 2020) - Transformer language modeling paradigm
PaLM (Google, 2022) - SwiGLU activation insights

🎯 Attention Mechanisms

Flash Attention v2 (Tri Dao et al., Stanford, 2023)
- Paper: FlashAttention-2: Faster Attention with Better Parallelism
- 3x speedup dengan IO-aware algorithm
Grouped Query Attention (Joshua Ainslie et al., Google, 2023)
- Paper: GQA: Training Generalized Multi-Query Transformer
- Memory-efficient KV cache
Multi-Query Attention (Noam Shazeer, Google, 2019)
- Fast inference dengan shared K/V
xFormers (Meta AI, 2022) - Memory efficient attention
PyTorch SDPA (PyTorch Team, 2023) - Native attention optimization

📍 Position Encodings

RoPE (Jianlin Su et al., EleutherAI, 2021)
- Paper: RoFormer: Enhanced Transformer with Rotary Position Embedding
- Superior length extrapolation
ALiBI (Ofir Press et al., 2022)
- Paper: Train Short, Test Long: Attention with Linear Biases
- Length generalization without retraining
YaRN (Bowen Peng et al., 2023)
- Paper: YaRN: Efficient Context Window Extension

🪟 Long Context & Efficiency

Sliding Window Attention (Albert Gu et al., Mistral AI, 2023)
- Paper: Mistral 7B
StreamingLLM (Guangxuan Xiao et al., MIT, 2023)
- Paper: Efficient Streaming Language Models with Attention Sinks
- Infinite sequence length!
Logit Softcapping (Google Gemma Team, 2024)
- Paper: Gemma: Open Models Based on Gemini

🧠 Mixture of Experts

Mixtral 8x7B (Albert Jiang et al., Mistral AI, 2024)
- Paper: Mixtral of Experts
- State-of-the-art sparse MoE
Switch Transformers (William Fedus et al., Google, 2021)
- Paper: Switch Transformers: Scaling to Trillion Parameter Models
- Expert scaling insights
GLaM (Nan Du et al., Google, 2021) - Generalist Language Model
Expert Choice Routing (Yanqi Zhou et al., Google, 2022)
- Better load balancing

🎓 Training Optimizations

Layer Scale (Hugo Touvron et al., Meta, 2021)
- Paper: Going Deeper with Image Transformers
- Training stability untuk deep networks
Stochastic Depth (Gao Huang et al., 2016)
- Paper: Deep Networks with Stochastic Depth
Mixture of Depths (David Raposo et al., DeepMind, 2024)
- Paper: Mixture-of-Depths: Dynamically allocating compute
- Dynamic compute allocation
Gradient Checkpointing (Tianqi Chen et al., 2016)

📦 Quantization

LLM.int8() (Tim Dettmers et al., 2022)
- Paper: LLM.int8(): 8-bit Matrix Multiplication for Transformers
QLoRA (Tim Dettmers et al., 2023)
- Paper: QLoRA: Efficient Finetuning of Quantized LLMs
- 4-bit efficient fine-tuning
bitsandbytes (Tim Dettmers) - Quantization library

🎨 Multimodal

Vision Transformer (Alexey Dosovitskiy et al., Google, 2020)
- Paper: An Image is Worth 16x16 Words
Flamingo (Jean-Baptiste Alayrac et al., DeepMind, 2022)
- Paper: Flamingo: a Visual Language Model
- Perceiver Resampler
BLIP-2 (Junnan Li et al., Salesforce, 2023)
- Paper: BLIP-2: Bootstrapping Language-Image Pre-training
- Q-Former architecture
Whisper (Alec Radford et al., OpenAI, 2022) - Audio encoding

🛠️ Normalization & Activations

RMSNorm (Biao Zhang, Rico Sennrich, 2019)
- Paper: Root Mean Square Layer Normalization
SwiGLU (Noam Shazeer, Google, 2020)
- Paper: GLU Variants Improve Transformer

🔧 Tools & Frameworks

🤗 Hugging Face - Transformers, Accelerate, PEFT
- Making NLP accessible to everyone
PyTorch - Deep learning framework
- Facebook AI Research team
Safetensors - Secure serialization
- Hugging Face team
DeepSpeed - Distributed training
- Microsoft Research
Flash Attention Implementation - Tri Dao & team

🇮🇩 Indonesian NLP Community

Special thanks to Indonesian NLP researchers & practitioners yang telah membangun foundation untuk Indonesian language AI.

📄 License

Model ini dirilis di bawah Apache License 2.0.

Ketentuan Penggunaan:

✅ Bebas digunakan untuk keperluan komersial dan non-komersial
✅ Modifikasi diperbolehkan
✅ Distribusi diperbolehkan dengan attribution
⚠️ No Warranty - model disediakan "as is"
📝 Attribution Required - sertakan copyright notice

Lihat LICENSE untuk detail lengkap.

🤝 Contributing

Kami sangat terbuka untuk kontribusi! Berikut cara Anda bisa berkontribusi:

Training & Fine-tuning

🎓 Train model ini dengan dataset Anda
📊 Share benchmark results
🔬 Experiment dengan hyperparameters

Code & Architecture

🐛 Report bugs atau issues
💡 Suggest improvements
🔧 Submit pull requests

Documentation

📚 Improve documentation
🌐 Add translations
✍️ Write tutorials & guides

Dataset & Evaluation

📝 Contribute training data
🧪 Create evaluation benchmarks
🎯 Share fine-tuned versions

👥 Team & Acknowledgments

Core Team

LyonPoy - Architecture design & implementation

Special Thanks

🤗 Hugging Face - Infrastructure & community
⚡ FlashAttention Team - Efficient attention implementation
🧠 Anthropic, Google, Meta - Research inspirations

Community

Terima kasih kepada komunitas open-source yang telah berkontribusi pada:

Transformers library
PyTorch framework
Datasets & evaluation tools

📞 Contact & Support

Community

💬 Discussions - Ask questions
🐛 Issues - Report bugs
📧 Email : cacatransformers@gmail.com

🌟 Star History

💝 Dibuat dengan ❤️ untuk Komunitas AI Indonesia

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Terima kasih telah menggunakan Caca!

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🚀 Happy Training! 🚀

Model ini menunggu untuk dilatih dan menjadi foundation untuk aplikasi AI Anda.

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📊 Model Statistics

🎨 Daily Inspiration

📈 Quick Stats

Metric	Value
💎 Total Parameters	400,030,848
🏗️ Layers	141
🎯 Attention Heads	8
📖 Max Context	2,048 tokens
💾 Size (FP16)	0.80 GB
💾 Size (INT4)	0.20 GB

_{Model ini adalah bagian dari Caca Project - Open source initiative untuk membangun Indonesian LLM ecosystem.

Created with 💻 by @Lyon28 |
Licensed under Apache 2.0 |
Built with 🤗 HuggingFace}

🌟 "Dari nol, untuk semua" 🌟

_{Last updated: january 2026}

_{Built with ❤️ by Caca Transformers Team}
_{Powered by 🤗 Transformers • ⚡ PyTorch • 🔥 Flash Attention}