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Microsoft: Phi 4 Mini Instruct

microsoft/phi-4-mini-instruct

Model weights

Phi-4-mini-instruct is a lightweight open model built upon synthetic data and filtered publicly available websites - with a focus on high-quality, reasoning dense data. The model belongs to the Phi-4 model family and supports 128K token context length. The model underwent an enhancement process, incorporating both supervised fine-tuning and direct preference optimization to support precise instruction adherence and robust safety measures.

Modalities

Context

131K

Released

Oct 17, 2025

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Token volume and request traffic to this model over time.

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About Microsoft: Phi 4 Mini Instruct

OpenRouter makes Microsoft: Phi 4 Mini Instruct available through a unified, OpenAI-compatible API using the model ID microsoft/phi-4-mini-instruct.

Microsoft: Phi 4 Mini Instruct accepts text and returns text. It has a 131,072-token context window.

It was released on October 17, 2025.

More models from Microsoft

  • MAI-Image-2.5 Pro
  • MAI-Voice-2-Flash
  • MAI-Voice-2

Frequently asked questions

Phi-4-mini-instruct is a lightweight open model built upon synthetic data and filtered publicly available websites - with a focus on high-quality, reasoning dense data. The model belongs to the Phi-4 model family and supports 128K token context length.

Phi 4 Mini Instruct has a 131,072 token context window.

Phi 4 and WizardLM-2 8x22B are other text models from Microsoft.

Phi 4 Mini Instruct was released on October 17, 2025.