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

DeepSeek-LLM vs o3-pro

DeepSeek
DeepSeek-LLM
OpenAI
o3-pro
Overview
CompanyDeepSeekOpenAI
Release dateNov 29 2023Jun 10 2025
AccessOpen WeightProprietary
Timeline
Release gapDeepSeek-LLM shipped 559 days before o3-pro

Which is better: DeepSeek-LLM or o3-pro?

DeepSeek-LLM and o3-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-LLM shipped 559 days before o3-pro, so benchmark comparisons should account for the intervening progress.

DeepSeek-LLM is open weight, while o3-pro is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek-LLM and o3-pro don't publish scores on any of the same benchmarks.

Frequently asked questions

DeepSeek-LLM was released by DeepSeek on Nov 29 2023.

o3-pro was released by OpenAI on Jun 10 2025.

DeepSeek-LLM is an open weight model released by DeepSeek. o3-pro is a proprietary model released by OpenAI.

Other comparisons