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DeepSeek-R1-Lite Preview vs GPT-5.4

0 vs 1 benchmarks won

DeepSeek
DeepSeek-R1-Lite Preview
OpenAI
GPT-5.4
Overview
CompanyDeepSeekOpenAI
Release dateNov 20 2024Mar 5 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
92.8%
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek-R1-Lite Preview shipped 470 days before GPT-5.4

Which is better: DeepSeek-R1-Lite Preview or GPT-5.4?

GPT-5.4 leads DeepSeek-R1-Lite Preview on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). DeepSeek-R1-Lite Preview shipped 470 days before GPT-5.4, so benchmark comparisons should account for the intervening progress.

DeepSeek-R1-Lite Preview is an open-source / open-weight model; GPT-5.4 is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was DeepSeek-R1-Lite Preview released?
DeepSeek-R1-Lite Preview was released by DeepSeek on Nov 20 2024.
When was GPT-5.4 released?
GPT-5.4 was released by OpenAI on Mar 5 2026.
Is DeepSeek-R1-Lite Preview or GPT-5.4 open source?
DeepSeek-R1-Lite Preview is an open-source / open-weight model released by DeepSeek. GPT-5.4 is a proprietary model released by OpenAI.

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