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

DeepSeek R1-0528 vs GPT-5.4 nano

DeepSeek
DeepSeek R1-0528
OpenAI
GPT-5.4 nano
Overview
CompanyDeepSeekOpenAI
Release dateMay 28 2025Mar 17 2026
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
8%
14%Best
Timeline
Release gapDeepSeek R1-0528 shipped 293 days before GPT-5.4 nano

Which is better: DeepSeek R1-0528 or GPT-5.4 nano?

GPT-5.4 nano leads DeepSeek R1-0528 on 1 of the 1 benchmark they both report (BullshitBench v2). DeepSeek R1-0528 shipped 293 days before GPT-5.4 nano, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is open weight, while GPT-5.4 nano is proprietary.

On BullshitBench v2, GPT-5.4 nano leads at 14% vs DeepSeek R1-0528 at 8%.

Frequently asked questions

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

GPT-5.4 nano was released by OpenAI on Mar 17 2026.

DeepSeek R1-0528 is an open weight model released by DeepSeek. GPT-5.4 nano is a proprietary model released by OpenAI.

Other comparisons