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# GPT Neo

## Overview

The GPTNeo model was released in the [EleutherAI/gpt-neo](https://github.com/EleutherAI/gpt-neo) repository by Sid
Black, Stella Biderman, Leo Gao, Phil Wang and Connor Leahy. It is a GPT2 like causal language model trained on the
[Pile](https://pile.eleuther.ai/) dataset.

The architecture is similar to GPT2 except that GPT Neo uses local attention in every other layer with a window size of
256 tokens.

This model was contributed by [valhalla](https://huggingface.co/valhalla).

### Generation

The `generate()` method can be used to generate text using GPT Neo model.

```python
>>> from transformers import GPTNeoForCausalLM, GPT2Tokenizer

>>> model = GPTNeoForCausalLM.from_pretrained("EleutherAI/gpt-neo-1.3B")
>>> tokenizer = GPT2Tokenizer.from_pretrained("EleutherAI/gpt-neo-1.3B")

>>> prompt = (
...     "In a shocking finding, scientists discovered a herd of unicorns living in a remote, "
...     "previously unexplored valley, in the Andes Mountains. Even more surprising to the "
...     "researchers was the fact that the unicorns spoke perfect English."
... )

>>> input_ids = tokenizer(prompt, return_tensors="pt").input_ids

>>> gen_tokens = model.generate(
...     input_ids,
...     do_sample=True,
...     temperature=0.9,
...     max_length=100,
... )
>>> gen_text = tokenizer.batch_decode(gen_tokens)[0]
```

## Documentation resources

- [Text classification task guide](../tasks/sequence_classification)
- [Causal language modeling task guide](../tasks/language_modeling)

## GPTNeoConfig

[[autodoc]] GPTNeoConfig

## GPTNeoModel

[[autodoc]] GPTNeoModel
    - forward

## GPTNeoForCausalLM

[[autodoc]] GPTNeoForCausalLM
    - forward

## GPTNeoForQuestionAnswering

[[autodoc]] GPTNeoForQuestionAnswering
    - forward

## GPTNeoForSequenceClassification

[[autodoc]] GPTNeoForSequenceClassification
    - forward

## GPTNeoForTokenClassification

[[autodoc]] GPTNeoForTokenClassification
    - forward

## FlaxGPTNeoModel

[[autodoc]] FlaxGPTNeoModel
    - __call__

## FlaxGPTNeoForCausalLM

[[autodoc]] FlaxGPTNeoForCausalLM
    - __call__