Base vs. Instruct model
| Type | Base model | Instruct model |
|---|---|---|
| Auto-complete behavior 1 | Yes | Yes |
| Conversation-like behavior 2 | No | Yes |
| Example (from Meta) | Llama-4-Scout-17B-16E | Llama-4-Scout-17B-16E-Instruct |
1 … because it has been pre-trained on crawled data from the internet.
2 … because it has been post-trained on user-defined datasets.