A side-by-side comparison of release history, capabilities, licensing and model sizes.
| Attribute |
 FLAN-T5
|
 OPT
|
|---|---|---|
| Developer | Meta | |
| Current generation | – | – |
| Initial release | 2022-12-06 | 2022-05-03 |
| Instruct tuned | Yes | No |
| Coding | No | No |
| Finetuning | Yes | Yes |
| Open source | Yes | Yes |
| License | Apache 2.0 | NA |
| Model sizes | 3B, 11B | 1.3B, 2.7B, 6.7B, 13B, 30B, 66B, 175B |
| Links |
FLAN-T5 is a finetuned version of Google's popular T5 model with instruct-finetuning. As stated in the model repository's introduction, compared to T5, FLAN-T5 is "just better at everything." With its permissive license, FLAN-T5 has become a popular option for a starting instruct model.
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 It has since been superseded by models such as LLaMA, GPT-J, and Pythia.
