DeepSeek R1-0528vsGrok 4.3 Beta

DeepSeek R1-0528
Grok 4.3 Beta
Benchmarks
BullshitBench v2
8%50%
Overview
CompanyDeepSeekSpaceXAI
Release dateMay 28 2025Apr 17 2026
AccessOpen WeightProprietary

Frequently asked questions

Grok 4.3 Beta leads DeepSeek R1-0528 on 1 of the 1 benchmark they both report (BullshitBench v2). DeepSeek R1-0528 shipped 324 days before Grok 4.3 Beta, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is open weight, while Grok 4.3 Beta is proprietary.

On BullshitBench v2, Grok 4.3 Beta leads at 50% vs DeepSeek R1-0528 at 8%.

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

Grok 4.3 Beta was released by SpaceXAI on Apr 17 2026.

DeepSeek R1-0528 is an open weight model released by DeepSeek. Grok 4.3 Beta is a proprietary model released by SpaceXAI.

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