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LLaMA vs. Pythia

LLM Comparison

LLaMA

Overview

The model that launched a frenzy in open-source instruct-finetuned models, LLaMA is Meta AI's more parameter-efficient, open-source alternative to large commercial LLMs. Despite being smaller than many commercial models, LLaMA outperformed the gold standard GPT-3 on many benchmarks, with the primary drawback being that its access remains gated to researchers with restrictions on commercial use.

Initial release: 2023-02-24

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

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LLaMA

Pythia

Products & Features
Instruct Models
Coding Capability
Customization
Finetuning
Open Source
License Noncommercial Apache 2.0
Model Sizes 7B, 13B, 33B, 65B 1B, 1.4B, 2.8B, 6.9B, 12B