CodeParrot 🦜
CodeParrot 🦜 is a GPT-2 model (1.5B parameters) trained to generate Python code. After the initial training and release of v1.0 we trained the model some more and released v1.1 (see below for details).
Usage
You can load the CodeParrot model and tokenizer directly in transformers:
from transformers import AutoTokenizer, AutoModelWithLMHead
tokenizer = AutoTokenizer.from_pretrained("codeparrot/codeparrot")
model = AutoModelWithLMHead.from_pretrained("codeparrot/codeparrot")
inputs = tokenizer("def hello_world():", return_tensors="pt")
outputs = model(**inputs)
or with a pipeline:
from transformers import pipeline
pipe = pipeline("text-generation", model="codeparrot/codeparrot")
outputs = pipe("def hello_world():")
Training
The model was trained on the cleaned CodeParrot 🦜 dataset in two steps. After the initial training (v1.0) the model was trained for another 30k steps resulting in v1.1 and you find the settings in the following table:
| Config | v1.0 | v1.1 |
|---|---|---|
| Batch size | 512 | 512 |
| Context size | 1024 | 1024 |
| Training steps | 50'000 | 30'000 |
| Gradient accumulation | 16 | 16 |
| Gradient checkpointing | True | True |
| Learning rate | 2e-4 | 5e-5 |
| Weight decay | 0.1 | 0.1 |
| Warmup steps | 750 | 750 |
| Schedule | Cosine | Cosine |
The training was executed on 16 x A100 (40GB) GPUs. This setting amounts to roughly 26 + 15 billion tokens.
Performance
We evaluated the model on OpenAI's HumanEval benchmark which consists of programming challenges:
| Metric | v1.0 | v1.1 |
|---|---|---|
| pass@1 | 3.58% | 3.99% |
| pass@10 | 8.03% | 8.69% |
| pass@100 | 14.96% | 17.88% |
The pass@k metric tells the probability that at least one out of k generations passes the tests.
Resources
- Dataset: full, train, valid
- Code: repository
- Spaces: generation, highlighting