> DeepSeek-R1-Lite-Preview is a closed AI model from DeepSeek, released 20 Nov 2024.

[Models](https://themodelindex.org/models/) /[DeepSeek](https://themodelindex.org/labs/deepseek/)

# DeepSeek-R1-Lite-Preview

DeepSeek

Released 20 Nov 2024

Closed

Reasoning

Date verified

[Compare](https://themodelindex.org/compare/deepseek-r1-lite-preview-vs-phi-4/) [Announcement](https://www.deepseek.com/en/news/r1-lite-preview/)

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Index score

Not yet evaluated independently

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Core tests taken

no independent results yet

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Versus the frontier at release

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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_

Not plotted: no index score yet.

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

Reasoning & knowledge

no evidence yet

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

Not on any of the rankings we follow yet.

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

Not in the top three among current models on any category we track.

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

## Where to use it · prices checked 1 Oct 2026

#### From the lab

DeepSeek Chat

app · subscription

↗

DeepSeek API

API

↗

Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.

## Facts and sources

Released

20 Nov 2024

Announcement

[deepseek.com ↗](https://www.deepseek.com/en/news/r1-lite-preview/)

Release entry

DeepSeek-R1-Lite-Preview

Scored as

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Artificial Analysis index

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Output speed

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Hugging Face

closed weights

## DeepSeek releases · around this one

DeepSeek-V2

Open

6 MAY 2024

DeepSeek-Coder-V2

Open

17 JUN 2024

DeepSeek-R1-Lite-Preview

Closed

20 NOV 2024

DeepSeek-V3

Open

26 DEC 2024

index 116

DeepSeek-R1

Open

20 JAN 2025

index 129

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Source: https://themodelindex.org/models/deepseek-r1-lite-preview/ · The Model Index · data as of 2026-10-01