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

DeepSeek R1-0528 vs gpt-oss-20b

DeepSeek
DeepSeek R1-0528
OpenAI
gpt-oss-20b
Overview
CompanyDeepSeekOpenAI
Release dateMay 28 2025Aug 5 2025
AccessOpen WeightOpen Weight
Benchmarks
Nonsense detection
BullshitBench v2
8%
Timeline
Release gapDeepSeek R1-0528 shipped 69 days before gpt-oss-20b

Which is better: DeepSeek R1-0528 or gpt-oss-20b?

DeepSeek R1-0528 and gpt-oss-20b don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek R1-0528 shipped 69 days before gpt-oss-20b, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — DeepSeek R1-0528 and gpt-oss-20b don't publish scores on any of the same benchmarks.

Frequently asked questions

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

gpt-oss-20b was released by OpenAI on Aug 5 2025.

Other comparisons