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Phi 4 Reasoning

Microsoft

Catalogue only Open weights

Last reviewed:

Sovereignty and hosting

Catalogue only

This model is catalogued for reference. It is not hosted on LLM EU yet, and no first-party endpoint serves it here. Requests to it go to the provider directly, under that provider's own terms.

Summary

It takes text and returns text. Phi 4 Reasoning is published by Microsoft as open weights with 14.7B parameters under MIT. The published configuration records no context window, so this card carries none. The repository was created in April 2025 and is mirrored on Hugging Face. The checkpoint is instruction-tuned and ships a chat template. The card is catalogue-only: LLM EU does not run this model. The publisher lists 3 languages, 1 of them among the languages the European Union publishes in.

Specifications

Provider
Microsoft (US)
Context window
Not verified: the provider has not documented this claim.
Parameters
14.7B
Modalities
text
License
mit · licence
Open weights
yes
Release date
09 Apr 2025
Tasks
Reasoning, Coding

Languages

Strong: en

Adequate: phi, nlp

Strong

  • en

Adequate

  • phi
  • nlp

Not verified: the provider has not documented this claim. — a language is listed as strong only where a source claims it; the card links the evidence where one exists.

When to use it

Strengths

  • open weights are published on Hugging Face and can be downloaded without a vendor agreement
  • mit licence, so commercial self-hosting is permitted without a separate agreement
  • the model page lists en
  • instruction-tuned checkpoint with a chat template in the repository

Limits

  • catalogue only — LLM EU does not run this model, and nothing on this card implies an LLM EU endpoint
  • no evaluation has been run by LLM EU
  • the published configuration records no context window, so the card carries none
  • at 14.7B parameters, self-hosting needs a single accelerator with enough memory for the weights