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GPTNeo vs. Pythia

LLM Comparison


GPTNeo

GPTNeo

Overview

GPTNeo is a model released by EleutherAI to try and provide an open source model with capabilities similar to OpenAI's GPT-3 model. One of the earliest such models, GPTNeo was trained on The Pile, Eleuther's corpus of web text.



Initial release: 2021-03-21

Further Reading

Pythia

Pythia

Overview

The most recent (as of May 2023) effort from EleutherAI, Pythia is a set of LLMs trained on The Pile. While it appears to outperform OPT and GPTNeo, its performance against GPT-J is unclear. Versions of Pythia have also been instruct-tuned by the team at Together.



Initial release: 2023-02-13

Further Reading

Looking for an LLM API/SDK that works out of the box? No prompts or ad hoc guardrails.

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More Comparisons

GPTNeo

Pythia

Products & Features
Instruct Models
Coding Capability
Customization
Finetuning
Open Source
License Apache 2.0 Apache 2.0
Model Sizes 1.3B, 2.7B 1B, 1.4B, 2.8B, 6.9B, 12B