Phi-4-reasoning

Open weights Active Text LLM Dense

14B open-weight reasoning model fine-tuned from Phi-4 on curated reasoning traces.

Released
Apr 30, 2025
Context window
32.8K tokens
Max output
Not disclosed
Parameters
14B
Input price
Not disclosed
Output price
Not disclosed

Prices are first-party list prices in USD at the standard tier. Last verified Oct 30, 2026.

Pricing

No first-party API. This is an open-weights release you can run yourself.

Specifications

Developer
Microsoft
Model type
Text LLM
Architecture
Dense
Parameters
14B
Input
Text
Output
Text
Knowledge cutoff
Not disclosed
License
MIT License
API access
No first-party API
Capabilities
Reasoning