Phi 4 Reasoning: Benchmarks, Pricing & Context Window
Phi 4 Reasoning is a language model from Microsoft, released in April 2025.
Phi-4-reasoning is a state-of-the-art open-weight reasoning model finetuned from Phi-4 using supervised fine-tuning on a dataset of chain-of-thought traces and reinforcement learning. It focuses on math, science, and coding skills.
Phi 4 Reasoning API
API access coming soon
Phi 4 Reasoning will be available through our gateway shortly.
Phi 4 Reasoning examples
Recent arena outputs from Phi 4 Reasoning, picked from the highest-ranked matchups.
Phi 4 Reasoning license
Phi 4 Reasoning is released under the MIT license, which permits commercial use, has 14.0B parameters, has a knowledge cutoff of March 2025.
- License
- MIT
- Commercial use allowed
- Parameters
- 14.0B
- Knowledge cutoff
- March 2025
MIT License - allows commercial use
FAQ
Common questions about Phi 4 Reasoning.