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AI model reference · 2026

Phi 4

MicrosoftModel details, evidence, and API facts

Microsoft Research Phi-4 is designed to perform well in complex reasoning tasks and can operate efficiently in situations with limited memory or where quick responses are needed.

Text generation
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Context window
16,384 tokens
Maximum output
16,384 tokens
Base provider API input
$0.07 / 1M tokens
Base provider API rate
Published evidence
0 benchmarks, 1 Arena result

Overview

About Phi 4

A concise catalog overview. Technical limits and published evaluation evidence are listed separately below.

Microsoft Research Phi-4 is designed to perform well in complex reasoning tasks and can operate efficiently in situations with limited memory or where quick responses are needed.

text

Published evaluations

Benchmark results

Only results mapped to this exact model and backed by a named source appear here. Different evaluation protocols are not treated as interchangeable.

No reviewed benchmark result is available for this exact model yet. We leave this section empty instead of assigning a nearby model’s score.

Human preference

Arena results

Arena scores come from blind human preference votes. They are reported separately from task benchmarks and are not used as substitutes for missing benchmark results.

Arena results for Phi 4
CategoryScoreRankVotesStatus
Arena TextBlind human preference score for text responses.1,256±5#29824,126Published

Technical reference

Specifications and API facts

Technical limits and reference provider prices come from the current catalog unless a reviewed external source is listed. Missing values stay marked as unavailable.

Model
Provider
Microsoft
Release date
Not available in reviewed sources
Catalog added
Jan 10, 2025
Context window
16,384 tokens
Maximum output
16,384 tokens
Knowledge cutoff
2024-06-30
License
Not available in reviewed sources
Capabilities and API
Input types
Text
Output types
Text
Reasoning
Not supported
Provider endpoint tool parameters
Not advertised by provider endpoint
Base provider API input
$0.07 / 1M tokens
Base provider cached input
Not available
Base provider API output
$0.14 / 1M tokens

These are reference provider API rates, not Writingmate checkout charges. Access in Writingmate follows the allowances of your Writingmate plan.

Provenance

Sources and update status

Source links are attached to the facts and evaluations they support. Catalog-only values are not presented as independently verified claims.

Evidence last updated Aug 23, 2026.

Catalog record updated Jan 10, 2025.

Catalog-added dates describe when a model entered the catalog, not necessarily its public release date.

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