# Phi-4 insights

Rangoon Insights reporting and guides tagged Phi-4.

Canonical: https://rangoon.ai/insights/tags/phi-4/

## Topics
- [Agent systems](https://rangoon.ai/insights/topics/agents/): Agent runtimes, handoffs, tools, and the boundaries that make them reviewable.
- [Governance](https://rangoon.ai/insights/topics/governance/): Policy, identity, authorization, approvals, and evidence for consequential work.
- [Infrastructure](https://rangoon.ai/insights/topics/infrastructure/): Model serving, sandboxes, tool services, and deployment boundaries.
- [Models](https://rangoon.ai/insights/topics/models/): Inference choices, local serving, compatibility, and operational tradeoffs.

## Stories
- [Phi-4 reasoning releases made inference-time work a route policy](https://rangoon.ai/insights/archive-microsoft-phi-4-reasoning-april-2025/)
  Microsoft introduced Phi-4-reasoning, Phi-4-reasoning-plus and Phi-4-mini-reasoning on April 30, 2025, making reasoning budget and evaluation policy explicit deployment choices.
- [Phi-4-multimodal joined text, image and speech in one model route](https://rangoon.ai/insights/archive-microsoft-phi-4-multimodal-february-2025/)
  Microsoft introduced Phi-4-multimodal on February 26, 2025 as a 5.6B-parameter model that accepts text, images and audio, changing how multimodal input paths can be tested.
- [Phi-4’s December 2024 release put data quality in the model record](https://rangoon.ai/insights/archive-microsoft-phi-4-data-quality-2024/)
  Microsoft introduced Phi-4 on December 12, 2024 as a 14-billion-parameter small language model. Its training account made data and curriculum review part of evaluation.


## More information

- [Documentation index](https://rangoon.ai/llms.txt)
- [AI access and policies](https://rangoon.ai/ai/)
- [Source repository](https://github.com/hypler-dev/rangoon)