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

DeepSeek V2.5 (Revised) vs Grok 4

DeepSeek
DeepSeek V2.5 (Revised)
SpaceXAI
Grok 4
Overview
CompanyDeepSeekSpaceXAI
Release dateDec 2024Jul 9 2025
AccessOpen WeightProprietary
Timeline
Release gapDeepSeek V2.5 (Revised) shipped 220 days before Grok 4

Which is better: DeepSeek V2.5 (Revised) or Grok 4?

DeepSeek V2.5 (Revised) and Grok 4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V2.5 (Revised) shipped 220 days before Grok 4, so benchmark comparisons should account for the intervening progress.

DeepSeek V2.5 (Revised) is open weight, while Grok 4 is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V2.5 (Revised) and Grok 4 don't publish scores on any of the same benchmarks.

Frequently asked questions

DeepSeek V2.5 (Revised) was released by DeepSeek on Dec 2024.

Grok 4 was released by SpaceXAI on Jul 9 2025.

DeepSeek V2.5 (Revised) is an open weight model released by DeepSeek. Grok 4 is a proprietary model released by SpaceXAI.

Other comparisons