Use a long-context reasoning model for coding, tools, and agent tasks through a model API or local artifacts.
AI Agents & Chatbots
All tools
View more
Free
Free
Access
Listed as Phi-4 is an open model with public weights and documentation, so developers can download and run it under the published model terms. It is not a no-signup hosted chat app; local inference or a provider such as Azure, Hugging Face, Ollama, or another model host still has hardware or usage requirements. The free label refers to the open model route, not unlimited hosted compute.
0
Text & Writing Checked Aug 6, 2026
Phi-4
Run a capable Microsoft small language model locally or inside your own AI application.
Best for: Developers and researchers evaluating a compact reasoning model for private, local, or provider-hosted workflows.
What you can do with it
- Run a private text assistant on supported hardware
- Test math and reasoning prompts
- Build a lightweight summarization or extraction feature
- Compare a small model with larger hosted models
- Learn Phi deployment patterns from the cookbook
Good to know
- Open model weights
- Strong reasoning and math focus
- Smaller than frontier hosted models
- Microsoft documentation and cookbook
Limitations
- Not a ready-made consumer chat app
- Local inference needs suitable hardware
- Knowledge is limited by the model cutoff
Other official links
Keep exploring
Similar tools
FreeA compact open multimodal model that combines chat, coding, reasoning, document understanding, and agentic work.
Coding & Dev
FreeMeta open-weight multimodal models for text, image understanding, and long-context AI applications.
AI Agents & Chatbots