Phi 4 Reasoning

Apr 2025
Phi 4 Reasoning
Compare in
—per task?
self-host onlyprice
—output speed?
33Kcontext

Run it yourself

estimate
Fits on✓ 8 GB (phone, laptop) · compressed✓ 16 GB · 8-bit✓ 24 GB GPU · 8-bit✓ 48 GB GPU · full quality✓ 80 GB GPU · full quality
LicenceMITfree for commercial use

Benchmarks

all categories
Chat & Knowledge
MMLU-Pro · official boardlab74.3

FAQ

How much does Phi 4 Reasoning cost?›

There is no per-unit API price: self-host only.

Is Phi 4 Reasoning free to use?›

There is no free API. The weights are open, so you can run it yourself.

What is the context window of Phi 4 Reasoning?›

33K tokens.

When was Phi 4 Reasoning released? Is there a newer version?›

Released 2025-04-09. It is the current version in its line.

Is Phi 4 Reasoning open source?›

Yes, the weights are open (MIT licence).

Can I run Phi 4 Reasoning locally?›

The weights are open and can be self-hosted; hardware needs are not confirmed yet.

Can Phi 4 Reasoning read images?›

No, it accepts text only.

What is Phi 4 Reasoning?›

Phi 4 Reasoning is an open-weights language model from Microsoft, released Apr 2025.