Microsoft · Phi 4 · active
phi-4
phi-4 is an open-weight language model published by Microsoft.
microsoft/phi-4Provider availability
Serving endpoints and pricing
| Provider | Route model | Tier | Input | Output | Region | Observed | Source |
|---|---|---|---|---|---|---|---|
 OpenRouterRoute-ready | microsoft/phi-4 | Standard routing | $0.070 | $0.14 | Unknown | Aug 28, 2026 | Provider-reported |
This page represents one immutable developer model ID. Serving endpoints, pricing, regions, quantizations, and service tiers attach separately and never create duplicate model records.
Technical specification
Capabilities
Version lineage
Explicit unknowns
- Maximum output
- Knowledge cutoff
Comparable peers
Related model comparisons
Questions
phi-4 FAQs
What is phi-4?+
phi-4 is an open-weight language model published by Microsoft. It is developed by Microsoft and its current sourced lifecycle status is active.
What inputs and outputs does phi-4 support?+
phi-4's current record lists Text as input and Text as output.
How much context does phi-4 support?+
The current record lists a 16,384-token context window and does not report a maximum output length.
Is phi-4 available through an API?+
phi-4 is marked as API-available. The directly sourced provider records currently include OpenRouter.
How large is phi-4?+
The current record lists 14.7B total parameters and an unknown active parameter count. Its architecture is Phi3ForCausalLM.
What capabilities and tasks does phi-4 support?+
phi-4's recorded capabilities are chat and generation. Its supported tasks are text.
Can phi-4 be self-hosted?+
phi-4 is an open-weight model. Self-hosting is supported, and the recorded license is mit.
Does phi-4 have related versions or aliases?+
No predecessor is recorded. No successor is recorded. Recorded aliases are microsoft/phi-4.
Which models can phi-4 be compared with?+
The current compatible peer set includes Phi-4-reasoning, Phi-4-multimodal-instruct, Phi-4-mini-instruct, Phi-4-mini-reasoning, and Ministral-8B-Instruct-2410. Compatibility requires shared sourced modalities and tasks; it does not imply that one model is better. Browse model comparisons →
How current is the Model Markets record for phi-4?+
phi-4 was last verified Aug 28, 2026 from Microsoft's primary source, “microsoft/phi-4 developer model repository.” The evidence is classified as official fact.
Primary evidence