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Artificial Intelligence · Capstone

Build a Language Model from Scratch

Tokeniser, transformer blocks and training loop written in PyTorch

5-6 weeks build

Overview

Every part of a GPT-style model built by hand. You train a byte-pair encoding tokeniser, write causal self-attention, feed-forward layers and positional embeddings, then train the model on a public-domain text corpus with a proper training loop. Loss curves, perplexity and sampled text at each checkpoint show the model learning.

What makes it stand up

  • 01Byte-pair encoding tokeniser implemented from scratch
  • 02Causal multi-head self-attention written without library layers
  • 03Training loop with warm-up, cosine decay and gradient clipping
  • 04Perplexity tracking and sampled text at each checkpoint
  • 05Temperature and top-k sampling for generation

Module breakdown

  1. 01

    Tokeniser

    BPE merge learning, encoding and decoding.

  2. 02

    Attention

    Scaled dot-product attention with a causal mask.

  3. 03

    Model

    Stacked transformer blocks with layer norm and residuals.

  4. 04

    Training

    Batching, optimiser schedule and checkpointing.

  5. 05

    Generation

    Sampling strategies and an interactive prompt script.

After this, you will be able to

  • Derive scaled dot-product attention on the whiteboard
  • Explain every line of your training loop
  • Demo the model generating text from your own checkpoint

Technology stack

  • Python
  • PyTorch
  • NumPy
  • Matplotlib

Complete kit

₹9,499₹16,099
-41%

Delivered in under 48 hours

Level
Capstone
Domain
Artificial Intelligence
Build time
5-6 weeks
Difficulty

You receive

  • Complete, commented source code
  • 60-90 page project report (IEEE format)
  • Editable presentation deck
  • Architecture, ER and UML diagrams
  • Local setup and deployment guide
  • Sample dataset or seed data
  • Viva question bank with answers
  • One 45-minute walkthrough call
  • 30 days of doubt-clearing support
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