Phi 4 Mini
by Microsoft
Phi 4 Mini is a model from Microsoft, released on February 1, 2025. It ranks #205 of 220 models by Intelligence Score with a score of -4.1.
Phi 4 Mini Instruct is a lightweight (3.8B parameters) open model built upon synthetic data and filtered web data, focusing on high-quality reasoning. It supports a 128K token context length and is enhanced for instruction adherence and safety via supervised fine-tuning and direct preference optimization.
Key specs
| Provider | Microsoft |
|---|---|
| Release date | 2025-02-01 |
| License | open source |
| Intelligence Score | -4.1 |
Quick answers
Is Phi 4 Mini open source?
Yes. Phi 4 Mini is an open model released under the open source license.
When was Phi 4 Mini released?
Microsoft released Phi 4 Mini on February 1, 2025.
How does Phi 4 Mini compare to Claude Opus 5.5 (Reasoning)?
Phi 4 Mini scores -4.1 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1.
Compare on the AI leaderboard · All AI models
More models from Microsoft
- MAI-Thinking-1 (Reasoning) — Microsoft
- MAI-Code-1-Flash (Reasoning) — Microsoft
- MAI-Code-1.1-Flash (Reasoning) — Microsoft
- Phi 4 Reasoning Plus — Microsoft
- Phi 4 Reasoning — Microsoft
- Phi 4 Mini Reasoning — Microsoft