---
language: ru
license: mit
library_name: keras
tags:
- gpt
- russian
- transformer
- gqa
- alibi
- rmsnorm
pipeline_tag: text-generation
datasets:
- HawkLabofficial/HawkGPT-v0.5  # synthetic
metrics:
- accuracy
---

# HawkGPT v0.5

Russian-language GPT-style transformer language model (24M params) trained from scratch on synthetic Q&A data.

## Architecture

| Param | Value |
|-------|-------|
| Embed dim | 512 |
| Layers | 8 |
| Query heads | 8 |
| KV heads (GQA) | 2 |
| FF dim | 2048 |
| Vocab size | ~3200 (BPE) |
| Max seq len | 256 |
| Parameters | 24,384,000 |

**Key design choices:**
- **Grouped Query Attention (GQA)** — 8 query / 2 KV heads for faster inference
- **ALiBi** — position biases instead of learned embeddings (extrapolates to longer sequences)
- **RMSNorm** — faster normalization without mean computation
- **No bias terms** — in all Linear layers
- **Weight tying** — embedding and output projection share weights
- **BPE tokenizer** — digit-aware (individual digit tokens), vocab ~3200

## Training

- Mixed precision (bfloat16) with XLA JIT compilation
- AdamW optimizer, cosine LR schedule with 1000-step warmup
- EMA (exponential moving average) of weights
- Batch size 96, max 30 epochs (early stopping patience 10)
- Trained on NVIDIA RTX 4070 12GB

### Training history

| Epoch | Loss | Throughput |
|-------|------|------------|
| 1 | 0.0663 | 57K t/s |
| 5 | 0.0520 | 157K t/s |
| 10 | 0.0512 | 360K t/s |
| 13 (best) | **0.0479** | 153K t/s |

## Benchmark

**Overall: 40/72 (55.6%)**

| Category | Score |
|----------|-------|
| Division | 90% |
| Knowledge | 80% |
| Algebra | 75% |
| Addition | 60% |
| Multiplication | 60% |
| Multi-step | 50% |
| Subtraction | 40% |
| Word problems | 33% |
| Sequences | 20% |

## Dataset

Synthetic Russian Q&A corpus (~200K+ pairs, ~80M+ characters) covering:
- Arithmetic (add, sub, mul, div, multi-step)
- Algebra (linear, quadratic, systems)
- Sequences, geometry, physics
- Python code tracing
- General knowledge (science, history, geography)
- Dialogue & conversations

## Usage

```python
import tensorflow as tf
from tokenizers import Tokenizer

# Load tokenizer
tokenizer = Tokenizer.from_file("tokenizer.json")
tokenizer.no_padding()
tokenizer.no_truncation()

# Build & load model
from model import build_model
model = build_model(vocab_size=tokenizer.get_vocab_size())
model.load_weights("model_best.weights.h5")

# Generate
def generate(prompt, temperature=0.7, top_k=50, max_new=200):
    bos_id = tokenizer.token_to_id("[BOS]")
    eos_id = tokenizer.token_to_id("[EOS]")
    enc = tokenizer.encode(prompt)
    ids = [bos_id] + enc.ids
    for _ in range(max_new):
        ctx = tf.constant([ids[-256:]], dtype=tf.int32)
        logits = model(ctx, training=False)[0, -1, :] / temperature
        if top_k:
            vals, _ = tf.math.top_k(logits, k=top_k)
            logits = tf.where(logits < vals[-1], -1e9, logits)
        next_id = int(tf.random.categorical(tf.nn.softmax(logits)[None], 1)[0, 0])
        if next_id in (eos_id, tokenizer.token_to_id("[PAD]")):
            break
        ids.append(next_id)
    return tokenizer.decode(ids[len([bos_id] + enc.ids):])

print(generate("Вопрос: 2 + 2 ="))
```

### CLI
```bash
python3 generate.py --prompt "Вопрос: Сколько будет 5 * 7?" --temperature 0.3 --top_k 20
```

## Files

| File | Description |
|------|-------------|
| `model_best.weights.h5` | Best checkpoint weights (94 MB) |
| `tokenizer.json` | BPE tokenizer |
| `config.py` | Full model & training config |
| `model.py` | Model definition (GQA, RMSNorm, ALiBi) |
| `generate.py` | Inference script |

## License

MIT