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Phi vs DeepSeek

Microsoft's small models trained mainly on curated textbook-quality data.

Feature comparison

Feature comparison of Phi and DeepSeek
Feature Phi DeepSeek
Context window 128k tokens 128k tokens
License MIT MIT for code, DeepSeek License for weights
Open weights Yes Yes
Parameters 3.8B, 14B 7B to 67B
Provider Microsoft DeepSeek

Shaded rows are identical for both; the differing rows are the ones that drive the recommendation below.

Which should you choose?

Generated from the differences above by structured rules, not by a model.

Choose Phi if…

Nothing in the recorded attributes distinguishes it in your favour.

Choose DeepSeek if…

Nothing in the recorded attributes distinguishes it in your favour.

Phi

model · Models

Phi is a family of small language models trained on a deliberately narrow, high-quality corpus of textbooks and exercises rather than on a web-scale crawl. It solves the assumption that capability requires scale, showing that data selection can substitute for a large part of it. It exists because it reframes the question from how much data to what kind of data, and the answer is useful when the budget is a single GPU.

DeepSeek

model · Models

DeepSeek is an open-weight model family whose published training methods attracted attention for reaching competitive quality at lower reported cost. It solves the cost question in training rather than in inference, which is where most optimisation effort goes. It exists as evidence that architecture and training-schedule choices matter enough to change what a given budget can produce, and its weights and methods are published.