Sapling Logo

OPT vs. Pythia

LLM Comparison


OPT

OPT

Overview

Open Pre-trained Transformer Language Models (OPT) is part of the family of open source models designed to replicate GPT-3, with similar decoder-only architecture. It has since been superseded by models such as LLaMA, GPT-J, and Pythia.



Initial release: 2022-05-03

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.

Sapling API
More Comparisons

OPT

Pythia
Products & Features
Instruct Models
Coding Capability
Customization
Finetuning
Open Source
License NA Apache 2.0
Model Sizes 1.3B, 2.7B, 6.7B, 13B, 30B, 66B, 175B 1B, 1.4B, 2.8B, 6.9B, 12B

Other OPT Comparisons

OPT vs. Alpaca OPT vs. Cerebras-GPT OPT vs. Dolly OPT vs. Falcon OPT vs. FastChat OPT vs. FLAN-T5 OPT vs. FLAN-UL2 OPT vs. Gemma OPT vs. Gemma 2 OPT vs. GPT-J OPT vs. GPT4All OPT vs. GPTNeo OPT vs. Grok OPT vs. Guanaco OPT vs. Koala OPT vs. LLaMA OPT vs. Llama 2 OPT vs. Llama 3 OPT vs. Mistral OPT vs. MPT OPT vs. OpenAssistant OPT vs. OpenLLaMA OPT vs. Orca OPT vs. Phi OPT vs. Pythia OPT vs. RedPajama-INCITE OPT vs. StableLM OPT vs. StableVicuna OPT vs. Vicuna OPT vs. WizardLM

Other Pythia Comparisons

Pythia vs. Alpaca Pythia vs. Cerebras-GPT Pythia vs. Dolly Pythia vs. Falcon Pythia vs. FastChat Pythia vs. FLAN-T5 Pythia vs. FLAN-UL2 Pythia vs. Gemma Pythia vs. Gemma 2 Pythia vs. GPT-J Pythia vs. GPT4All Pythia vs. GPTNeo Pythia vs. Grok Pythia vs. Guanaco Pythia vs. Koala Pythia vs. LLaMA Pythia vs. Llama 2 Pythia vs. Llama 3 Pythia vs. Mistral Pythia vs. MPT Pythia vs. OpenAssistant Pythia vs. OpenLLaMA Pythia vs. OPT Pythia vs. Orca Pythia vs. Phi Pythia vs. RedPajama-INCITE Pythia vs. StableLM Pythia vs. StableVicuna Pythia vs. Vicuna Pythia vs. WizardLM

Undecided?

Get Advice