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Phi-4-mini-flash-reasoning

Microsoft · 2025 · Reasoning LLM · USA

Phi-4-mini-flash-reasoning floppy-disk dossier card

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A to Z

A · App
No
B · Built By
Microsoft
C · CEO & Politics
Satya Nadella — Centrist / moderate
D · Date
2025
E · Expertise
Intermediate+
F · Free Tier
Yes
G · Generates
Text only
H · Deployment
Cloud + Local (open weights)
I · Inputs
Text
J · Jurisdiction
USA
K · Key Staffers
Mustafa Suleyman (CEO Microsoft AI), Kevin Scott (CTO)
L · Languages
English-primary
M · Model Type
Reasoning LLM
N · Safety Issues
None reported
O · Open Source
Yes — open weights
P · Pricing
Free (open weights, MIT)
Q · AIDb Rating
5/10 · AIDb v2.0 (rule-based): Capability 4/10 · Currency 4/10 · Access 10/10 · Significance 4.5/10 → 4.97
R · What Makes It Special
Microsoft's Phi-4-mini-flash-reasoning, a 3.8B-parameter open model for multi-step math reasoning in memory-, compute- or latency-constrained settings, built on the SambaY decoder-hybrid-decoder architecture that mixes state-space layers, a gated memory unit and differential attention; with a 64K-token context it beat Phi-4-mini-reasoning on Math500, AIME 2024/25 and GPQA Diamond without reinforcement learning while decoding up to 10x faster on long generations. MIT license.
S · Stock / Status
$516 (MSFT, Sep 25, 2026)
T · Training Cutoff
[UNKNOWN]
U · Users
[UNKNOWN]
V · Voice Chat
No
W · Weights
Downloadable
X · X Handle
@Microsoft
Y · Year Founded
[UNKNOWN]
Z · Bottom Line
Open-weights Reasoning LLM from Microsoft, released 2025.

Data completeness 88% · Last verified 2026-06-11 · Primary source ↗

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“Phi-4-mini-flash-reasoning.” AIDb — The AI Database. Verified 2026-06-11. https://theaidatabase.com/m/microsoft-phi-4-mini-flash-reasoning.html

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