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

DeepSeek R1-0528 vs GPT-4o mini

DeepSeek
DeepSeek R1-0528
OpenAI
GPT-4o mini
Overview
CompanyDeepSeekOpenAI
Release dateMay 28 2025Jul 18 2024
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
8%Best
2%
Timeline
Release gapGPT-4o mini shipped 314 days before DeepSeek R1-0528

Which is better: DeepSeek R1-0528 or GPT-4o mini?

DeepSeek R1-0528 leads GPT-4o mini on 1 of the 1 benchmark they both report (BullshitBench v2). GPT-4o mini shipped 314 days before DeepSeek R1-0528, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is open weight, while GPT-4o mini is proprietary.

On BullshitBench v2, DeepSeek R1-0528 leads at 8% vs GPT-4o mini at 2%.

Frequently asked questions

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

GPT-4o mini was released by OpenAI on Jul 18 2024.

DeepSeek R1-0528 is an open weight model released by DeepSeek. GPT-4o mini is a proprietary model released by OpenAI.

Other comparisons