AI Research Atlas

phi-1.5

Microsoft · 11 September 2023

1.3B general model trained on 30B tokens of textbook-style synthetic text; near state of the art among sub-10B models at release.

Extended phi-1 from code to common-sense and language reasoning using new synthetic NLP text; released as a base (not instruction-tuned) model for safety research, under MIT licence per its model card.

Date
Monday, 11 September 2023
Lab
Microsoft
Kind
open-weights
Access
open weights

Figures

MeasureValueMeasured by
Training150B tokens on a 30B-token dataset
1.3B parameters
company

Base model, not instruction-tuned or RLHF'd; released for safety research. MIT per the current model card.

Sources

  1. huggingface.co/microsoft/phi-1_5

This record was checked against its sources on 6 October 2026. How we check

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