RomanticGPT 💕

A small Keras LSTM text generator trained on public-domain romantic literature.

What is this?

RomanticGPT is a word-level language model built with TensorFlow/Keras:

• Architecture: Embedding → LSTM → Dense (softmax)
• Training data: Public-domain romantic novels from Project Gutenberg
• Vocabulary: ~10,000 words
• Parameters: ~1.4M (intentionally small, CPU-friendly)

Files

File	Description
romantic_gpt.keras	Trained Keras model (full model, not just weights)
tokenizer_config.json	Vocabulary and sequence length metadata
train.py	Training script
generate.py	Inference / text generation script
sample_prompts.txt	Example prompts to try

Quick Start

Load the model

import tensorflow as tf
model = tf.keras.models.load_model("romantic_gpt.keras")

Generate text

pip install tensorflow numpy
python generate.py --prompt "she looked into his eyes" --words 50 --temperature 0.8

Train from scratch

# 1. Download public-domain texts into data/
cd data
curl -o pride_and_prejudice.txt https://www.gutenberg.org/cache/epub/1342/pg1342.txt
curl -o sense_and_sensibility.txt https://www.gutenberg.org/cache/epub/161/pg161.txt
curl -o jane_eyre.txt https://www.gutenberg.org/cache/epub/1260/pg1260.txt
cd ..

# 2. Train
python train.py

# 3. Generate
python generate.py --prompt "her heart beat faster"

Programmatic Inference

import json
import tensorflow as tf
import numpy as np
from tensorflow.keras.preprocessing.sequence import pad_sequences

model = tf.keras.models.load_model("romantic_gpt.keras")

with open("tokenizer_config.json") as f:
    config = json.load(f)

word_index = config["word_index"]
index_word = config["index_word"]
seq_length = config["max_seq_length"]

prompt = "she looked into his eyes"
words = prompt.lower().split()

for _ in range(50):
    token_ids = [word_index.get(w, 1) for w in words]
    padded = pad_sequences([token_ids], maxlen=seq_length, padding="pre")
    probs = model.predict(padded, verbose=0)[0]
    next_id = int(np.argmax(probs))
    next_word = index_word.get(str(next_id), "")
    if next_word:
        words.append(next_word)

print(" ".join(words))

Training Data

All training texts are sourced from Project Gutenberg and are in the public domain in the United States. See data/README.md for download instructions and recommended titles.

Limitations

• Very small model — produces grammatically rough, sometimes incoherent text
• Word-level tokenization — cannot handle subword patterns or rare words well
• No attention mechanism — limited long-range coherence
• CPU-trained — training is feasible but slow on large corpora
• Not suitable for production use — this is an educational demonstration

License

The code in this repository is provided as-is for educational purposes. Training data is public domain (Project Gutenberg).

Tech Stack

• Python 3.11+
• TensorFlow / Keras (CPU)
• NumPy