Nano GPT Variants LLM Tools

Educational and specialized implementations of nanoGPT, including language-specific versions, framework ports, and domain-adapted models. Does NOT include general GPT implementations, larger models, or tools that use GPT as a component rather than implementing the architecture from scratch.

There are 69 nano gpt variants tools tracked. 1 score above 50 (established tier). The highest-rated is vixhal-baraiya/microgpt-c at 51/100 with 234 stars.

Get all 69 projects as JSON

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#	Tool	Score	Tier	Stars	Language
1	vixhal-baraiya/microgpt-c The most atomic way to train and inference a GPT in pure, dependency-free C	51	Established	234	C
2	milanm/AutoGrad-Engine A complete GPT language model (training and inference) in ~600 lines of pure...	48	Emerging	332	C#
3	LeeSinLiang/microGPT Implementation of GPT from scratch. Design to be lightweight and easy to modify.	46	Emerging	113	Python
4	dubzdubz/microgpt-ts A complete GPT built from scratch in TypeScript with zero dependencies	42	Emerging	28	TypeScript
5	biegehydra/NanoGptDotnet A miniature large language model (LLM) that generates shakespeare like text...	40	Emerging	41	C#
6	ssrhaso/microjpt The most atomic way to train and run inference for a GPT in 100 lines of...	38	Emerging	98	Julia
7	alicetinkaya76/microgpt-academy 🧠 Interactive GPT/Transformer Learning Platform — İnteraktif GPT/Transformer...	38	Emerging	11	JavaScript
8	chanjoongx/microgpt-efficiency "Everything else is just for efficiency." — Karpathy's microgpt benchmarked...	38	Emerging	11	Python
9	ckaraneen/micrograduate 📖 A self-contained course to learn the basics of neural networks: from...	37	Emerging	13	Jupyter Notebook
10	enescang/microgpt-visualizer Interactive visualization of a minimal GPT implementation with autograd engine.	37	Emerging	89	TypeScript
11	mahmudulyeamim/GraDeT-HTR [EMNLP 2025 System Demonstrations] GraDeT-HTR: A Resource-Efficient Bengali...	37	Emerging	3	Python
12	danilop/micro-gpt-and-beyond Six implementations of the same tiny GPT language model — from pure Python...	36	Emerging	4	Python
13	eniompw/nanoGPTshakespeare finetuning shakespeare on karpathy/nanoGPT	36	Emerging	22	Jupyter Notebook
14	ahmedkhn0611-hash/Tiny-GPT-on-Vortex-GPGPU-for-AMD-Alveo-U280 Exploring capabilites of RISC-V open source GPGPU to handle AI/ML workloads	35	Emerging	2	Verilog
15	Kuberwastaken/picogpt GPT in a QR Code ; The actual most atomic way to train and inference a GPT...	35	Emerging	119	HTML
16	maxencefaldor/nanoGPT-JAX Repository nanoGPT from @karpathy accelerated with JAX/Flax! The simplest,...	34	Emerging	9	Jupyter Notebook
17	Troyonyx/onyxGPT Modular, fine-tuneable financial GPT for Troyonix, based on nanoGPT. Apple...	34	Emerging	1	Python
18	StoneCypher/microgpt.ts A conversion of Karpathy's MicroGPT to Typescript	33	Emerging	1	TypeScript
19	e-hossam96/arabic-nano-gpt Arabic Nano GPT Trained on Arabic Wikipedia Dataset from Wikimedia	33	Emerging	3	Jupyter Notebook
20	marella/gptj.cpp Port of GPT-J model in C/C++	33	Emerging	11	C++
21	aneesh-aparajit/fedGPT An implementation of training nanoGPT through Federated Learning and...	32	Emerging	4	Jupyter Notebook
22	sna1lBoy/snailGPT mirror of https://codeberg.org/snailboy/snailGPT	31	Emerging	3	C
23	cgao96/nanoGPT.jax The simplest, fastest repository for training/finetuning medium-sized GPTs in Jax.	29	Experimental	7	Python
24	DennisRemigio/Verso-GPT-e-oltre Corso completo in Intelligenza Artificiale Generativa, a partire da zero	28	Experimental	2	Jupyter Notebook
25	AttentionX/testGPT Test-driven implementation of nanoGPT	27	Experimental	16	Python
26	xigh/numpy-gpt2 A minimal GPT-2 inference implementation using NumPy only.	26	Experimental	4	Python
27	Antimatter543/karpathy-NN-lectures My runthrough of karpathy's lectures (with notes), building NN's from...	26	Experimental	10	Jupyter Notebook
28	davidar/eigenGPT Minimal C++ implementation of GPT2	25	Experimental	41	C++
29	LumGenLab/LumGPT Transformer (GPT) implemented from scratch in C++. Runs on modest hardware...	25	Experimental	5	C++
30	gicrisf/microgpt-lisp Common Lisp implementation of Karpathy's Microgpt	24	Experimental	3	Common Lisp
31	deepanwadhwa/nanogpt-Audio An experimental nanogpt fork that learns to speak Shakespeare by modeling...	24	Experimental	13	Python
32	smimram/ocaml-microgpt An OCaml implementation of microGPT.	24	Experimental	3	OCaml
33	jianlingzhong/nanoGPT-cpp This repository is a C++ port of Andrej Karpathy's phenomenal nanoGPT.	23	Experimental	2	C++
34	siyampangase234-arch/microgpt.js ⚡ Implement an exact GPT training and inference algorithm in pure JavaScript...	22	Experimental	1	JavaScript
35	jamone-de/jamone-nano-CAGS Interactive Training Dashboard & CAGS-Operator Verification for JamOne Nano.	22	Experimental	—	Python
36	k-arindam/microgpt microGPT	22	Experimental	1	Rust
37	hrzn/prot-gpt Nano Prot GPT: NanoGPT on protein sequences	22	Experimental	21	Jupyter Notebook
38	mmellau/microgpt-swift Swift port of Karpathy's microgpt.py	22	Experimental	1	Swift
39	skyvanguard/GPT-Visual Visualización 3D interactiva de inferencia de transformers GPT	21	Experimental	—	TypeScript
40	shitian-ni/CUDA-GPT CUDA and algorithmic acceleration for GPT image template matching	21	Experimental	7	C++
41	NotShrirang/QuillGPT Implementation of the GPT decoder block in PyTorch finetuned on Shakespeare's works 🪶	21	Experimental	9	Jupyter Notebook
42	sobitkarki1/nanogpt-august-copy Working copy of the August nanoGPT notebook for parallel experimentation	21	Experimental	—	Jupyter Notebook
43	sobitkarki1/nanogpt-august Jupyter notebook nanoGPT training experiments (August 2024)	21	Experimental	—	Jupyter Notebook
44	brianberns/ModestGpt A modest GPT written in F#	20	Experimental	8	F#
45	shakedzy/nanogpt My personal implementation of Andrej Karpathy's NanoGPT, also translated to MLX	20	Experimental	5	Jupyter Notebook
46	Auxeno/fable A compact story telling language model	20	Experimental	1	Python
47	altsoph/plays_remarker A simple approach to generate authors' remarks for any play dialog...	19	Experimental	4	Jupyter Notebook
48	eniompw/DisneyGPT Training nanoGPT on Disney stories	18	Experimental	2	Jupyter Notebook
49	ramanakshay/nanogpt nanoGPT model from scratch	18	Experimental	2	Python
50	Chi-Shan0707/microgpt.cpp microgpt.cpp in 300 lines!	15	Experimental	2	C++
51	nguyenphuminh/shakespeare-lm A tiny model to generate Shakespeare-style text, written in Catniff	14	Experimental	1	JavaScript
52	jpleboeuf/nimigpt The most atomic way to train and run inference for a GPT in pure,...	14	Experimental	1	Nim
53	Antonel098/microgpt-visualizer 🔍 Visualize and explore GPT models step-by-step with an interactive tool...	13	Experimental	—	TypeScript
54	vijaysai1102/nanoGPT_repo Comprehensive hyperparameter tuning study of nanoGPT exploring block sizes,...	13	Experimental	—	Jupyter Notebook
55	IdrikSirk/micro-gpt-and-beyond 🤖 Explore tiny GPT models with step-by-step Python and framework...	13	Experimental	—	—
56	duttaturja/nanoGPT An implementation of OpenAi's GPT-2 (124M) from scratch using pytorch	13	Experimental	—	Jupyter Notebook
57	vaibhavnegi123/microgpt 🚀 Implement a minimal GPT with both Python and CUDA versions, optimized for...	13	Experimental	—	HTML
58	IvanBongiorni/shakespeare-gpt How to build a custom GPT for text generation, based on TensorFlow 2.x and...	13	Experimental	—	Python
59	SuryaNarayanaa/Build-GPT Lo, behold this wondrous contrivance—a digital bard, imbued with the spirit...	13	Experimental	—	Jupyter Notebook
60	huyhuy091/microgpt-c Create tiny specialist models that outperform single models on focused tasks...	13	Experimental	—	—
61	aliosmankaya/shakespeare-gpt Infinite Shakespeare Plays by GPT	12	Experimental	1	Python
62	designer-coderajay/minigpt-shakespeare From-scratch GPT implementation trained on Shakespeare (10.75M params, 25 tests)	12	Experimental	1	Python
63	thisisanshgupta/KAN_based_GPT This is a GPT model from nanoGPT but with a twist of KAN:)	12	Experimental	1	Python
64	Vadbeg/nano-gpt Learning project wirh reimplementation of Andrej Karpathy series	11	Experimental	—	Python
65	jaltez/microgpt-visual Interactive, step-by-step visualization of Andrej Karpathy's microgpt.py	11	Experimental	—	JavaScript
66	snackapps/microgpt-nim A minimalist GPT implementation in Nim inspired by Karpathy's makemore....	11	Experimental	—	Nim
67	rmgogogo/nano-transformers Nano Transformers, Transformer, GPT, GPT-2, GPT-3 (AST) etc.	11	Experimental	4	Jupyter Notebook
68	quickgrid/nanogpt Learning and modifying nanogpt by Andrej Karpathy.	11	Experimental	—	Jupyter Notebook
69	mattzcarey/micrograd.zig small (and partial) autograd engine inspired from Karpathy's micrograd and...	11	Experimental	4	Zig

Comparisons in this category

microgpt-c and picogpt (51 vs 35) microgpt-c and microjpt (51 vs 38) microGPT and micro-gpt-and-beyond (46 vs 36) microgpt-ts and microgpt.ts (42 vs 33)