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

DeepSeek Chat (R1-based) vs Grok 4.5

DeepSeek
DeepSeek Chat (R1-based)
SpaceXAI
Grok 4.5
Overview
CompanyDeepSeekSpaceXAI
Release dateJan 20 2025Jul 8 2026
AccessOpen WeightProprietary
Benchmarks
Agentic coding
SWE-Bench Pro
64.7%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Agentic terminal coding
Terminal-Bench 2.1
83.3%
Timeline
Release gapDeepSeek Chat (R1-based) shipped 534 days before Grok 4.5

Which is better: DeepSeek Chat (R1-based) or Grok 4.5?

DeepSeek Chat (R1-based) and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek Chat (R1-based) shipped 534 days before Grok 4.5, so benchmark comparisons should account for the intervening progress.

DeepSeek Chat (R1-based) is open weight, while Grok 4.5 is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek Chat (R1-based) and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

DeepSeek Chat (R1-based) was released by DeepSeek on Jan 20 2025.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

DeepSeek Chat (R1-based) is an open weight model released by DeepSeek. Grok 4.5 is a proprietary model released by SpaceXAI.

Other comparisons