AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

DeepSeek-R1-Lite Preview vs o1-pro

DeepSeek
DeepSeek-R1-Lite Preview
OpenAI
o1-pro
Overview
CompanyDeepSeekOpenAI
Release dateNov 20 2024Mar 19 2025
AccessOpen WeightProprietary
Timeline
Release gapDeepSeek-R1-Lite Preview shipped 119 days before o1-pro

Which is better: DeepSeek-R1-Lite Preview or o1-pro?

DeepSeek-R1-Lite Preview and o1-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-R1-Lite Preview shipped 119 days before o1-pro, so benchmark comparisons should account for the intervening progress.

DeepSeek-R1-Lite Preview is open weight, while o1-pro is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek-R1-Lite Preview and o1-pro don't publish scores on any of the same benchmarks.

Frequently asked questions

DeepSeek-R1-Lite Preview was released by DeepSeek on Nov 20 2024.

o1-pro was released by OpenAI on Mar 19 2025.

DeepSeek-R1-Lite Preview is an open weight model released by DeepSeek. o1-pro is a proprietary model released by OpenAI.

Other comparisons