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Phi-1.5

Parameters

1.3B

Context Length

2K

Modality

Text

Architecture

Dense

License

MIT

Release Date

10 Sept 2023

Knowledge Cutoff

-

API Pricing (per 1M)

Self-hosted only

System Requirements

VRAM requirements for different quantization methods and context sizes

1,024 tokens

4.65 GB VRAM

Consumer

1x RTX 4090

24GB VRAM

Datacenter

1x NVIDIA A100

80GB VRAM

Apple Silicon

1x Apple M3 Max

128GB VRAM

2,048 tokens

5.08 GB VRAM

Consumer

1x RTX 4090

24GB VRAM

Datacenter

1x NVIDIA A100

80GB VRAM

Apple Silicon

1x Apple M3 Max

128GB VRAM

Architecture Diagram

Input TokensToken EmbeddingPosition: RoPEHidden: 2k · Context: 2K · Vocab: 51.2kx 24 layersRMSNormPre-AttentionMulti-Head Attention32Q / 32KV headsHead dim: 64+RMSNormPre-FFNFeed-Forward NetworkGELUIntermediate: 8.2k+Final RMSNormOutput Logits

Evaluation Benchmarks

No evaluation benchmarks for Phi-1.5 available.

Rankings

Overall Rank

-

Coding Rank

-

About Phi-1.5

Phi-1.5 is a 1.3B parameter open language model from Microsoft Research engineered for common sense reasoning and general natural language understanding. It was trained on 30B high-quality synthetic tokens for efficient NLP research.

Technical Specifications

Attention

Attention Structure

Multi-Head Attention

Attention Heads

32

Key-Value Heads

32

Attention Head Dimension

-

Position Embedding

ROPE

RoPE Theta

10,000

Sliding Window Attention

No

Sliding Window Size

-

Sliding Window Ratio

-

Linear Attention

-

Linear Attention Ratio

-

Normalization

RMS Normalization

Activation Function

GELU

Dimensions

Auxiliary Parameters

-

Hidden Dimension Size

2,048

Number of Layers

24

FFN Intermediate Size (Dense)

8,192

Multi-Token Prediction Heads

-

Tokenizer

Vocabulary Size

51,200

About Phi-1.5

Microsoft's Phi-1.5 is a 1.3 billion parameter Transformer model, a successor to Phi-1. It was trained on a curated synthetic dataset of "textbook-quality" for common sense reasoning. The architecture comprises 24 layers, 32 attention heads, and incorporates rotary embeddings.


Other Phi-1.5 Models
  • No related models available