> Phi-2 is an open-weights AI model from Microsoft, released 12 Dec 2023.

[Models](https://themodelindex.org/models/) /[Microsoft](https://themodelindex.org/labs/microsoft/)

# Phi-2

Microsoft

Released 12 Dec 2023

Open

Date verified

[Compare](https://themodelindex.org/compare/phi-2-vs-gpt-4-turbo/) [Announcement](https://huggingface.co/microsoft/phi-2)

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Index score

Not yet evaluated independently

0/ 8

Core tests taken

0 of 6 areas · plus 1 anchor tests

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Versus the frontier at release

Replaced by [Phi-4](https://themodelindex.org/models/phi-4/)

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Price per million tokens

no public API price found

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Context window

tokens it reads at once

## Where it sits · on the frontier

_Chart: Model Index score of every scored model since late 2022, with the best closed and best open model over time_

GPT-4 reached this score 9 months earlier.

## Test results · by area · tick = best by any model

Show 1 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

no result

Humanity's Last Exam

no result

Maths

no evidence yet

FrontierMath T1-3

no result

Coding

no evidence yet

SWE-bench Verified

no result

Terminal-Bench

no result

Agents

no evidence yet

APEX-Agents

no result

Novel problems

no evidence yet

ARC-AGI-2

no result

Long tasks

no evidence yet

METR time horizon

no result

Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.

## What others say · rank on each leaderboard

Epoch Capabilities Index

overall capability from many benchmarks

#198

of 239 · 108.0

Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.

## Best at · top three among current models

Replaced by Phi-4; it no longer leads any category among current models.

Where this model places in the top three of today's models, on category leaderboards and on our core tests.

## Facts and sources

Released

12 Dec 2023

Announcement

[huggingface.co ↗](https://huggingface.co/microsoft/phi-2)

Release entry

Phi-2

Scored as

Phi-2

Artificial Analysis index

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Output speed

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Hugging Face

not linked

## Microsoft releases · around this one

Phi-2

Open

12 DEC 2023

Phi-3

Open

23 APR 2024

index 94

Phi-4

Open

12 DEC 2024

index 112

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Source: https://themodelindex.org/models/phi-2/ · The Model Index · data as of 2026-10-01