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

DeepSeek R1-0528 vs o3-pro

DeepSeek
DeepSeek R1-0528
OpenAI
o3-pro
Overview
CompanyDeepSeekOpenAI
Release dateMay 28 2025Jun 10 2025
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
8%
Timeline
Release gapDeepSeek R1-0528 shipped 13 days before o3-pro

Which is better: DeepSeek R1-0528 or o3-pro?

DeepSeek R1-0528 and o3-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek R1-0528 shipped 13 days before o3-pro, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is open weight, while o3-pro is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek R1-0528 and o3-pro don't publish scores on any of the same benchmarks.

Frequently asked questions

DeepSeek R1-0528 was released by DeepSeek on May 28 2025.

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

DeepSeek R1-0528 is an open weight model released by DeepSeek. o3-pro is a proprietary model released by OpenAI.

Other comparisons