Phi-1.5
by Microsoft
· PHI family · released Sep 11, 2023
Open weights
Active
1.3B with commonsense gains from synthetic data.
This model has no first-party API. Open-weight release: self-host from published weights.
Specifications
| Model type | Text LLM |
|---|---|
| Architecture | Dense |
| Parameters | 1.3 |
| Context window | 2.0K tokens |
| Max output | Not disclosed tokens |
| Knowledge cutoff | Not disclosed |
| License | MIT License |
| Modalities | Text input Text output |
| Tags | Small LM |
| End of life | Not disclosed |
| Last verified | Aug 20, 2026 |