Phi-4 Mini Reasoning
Microsoft
Chain-of-thought reasoning variant of Phi-4 Mini (3.8B). SFT on OpenAI o3-mini demonstrations + RL. 128K context makes it ideal for RAG. Best reasoning at sub-4B scale.
Text Generation Local Latest Phi Family v4
Parameters
3.8B
params
Context Window
131K
tokens
Max Output
-
tokens
Input Price
-
per 1M tokens
Output Price
-
per 1M tokens
Phi Family 6 models
The full Phi line by generation — pricing and capabilities vary across the family.
Phi-4
Phi-4 Mini Reasoning Current Latest
Reasoning, math, RAG, edge deployment
131K
context
Phi-4 14B
Math, reasoning, STEM, coding
16K
context
Capabilities
👁️
Vision
⚡
Function Calling
📋
JSON Mode
🌊
Streaming
💬
System Prompt
🖥️
Code Execution
🔍
Web Search
🔌
MCP Support
Local Model Specs
Quantization
Q4_K_M
Architecture
Dense Transformer
Runtime
Ollama / llama.cpp
Disk Size
2.5 GB
Details
- Release Date
- April 30, 2025
- Knowledge Cutoff
- -
- Source
- Local
- License
- MIT
- Model ID
- phi-4-mini-reasoning
Last updated: March 13, 2026