Pythia vs. Vicuna
LLM Comparison
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
Reference
Further Reading
Vicuna
Overview
Released alongside Koala, Vicuna is one of many descendants of the Meta LLaMA model trained on dialogue data collected from the ShareGPT website. According to the authors, Vicuna achieves more than 90% of ChatGPT's quality in user preference tests, while vastly outperforming Alpaca. As of May 2023, Vicuna seems to be the heir apparent of the instruct-finetuned LLaMA model family, though it is also restricted from commercial use.
Initial release: 2023-03-30
Reference
Further Reading
Looking for an LLM API/SDK that works out of the box? No prompts or ad hoc guardrails.
Sapling APIMore Comparisons
Pythia |
Vicuna |
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| Open Source | ||
| License | Apache 2.0 | Noncommercial |
| Model Sizes | 1B, 1.4B, 2.8B, 6.9B, 12B | 13B |