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DeepSeek V3.1 Terminus vs Grok‑1

DeepSeek DeepSeek V3.1 Terminus vs xAI Grok‑1 — side-by-side specs.

DeepSeek
DeepSeek V3.1 Terminus
xAI
Grok‑1
Overview
CompanyDeepSeekxAI
Release dateSep 22 2025Nov 3 2023
Model type
Open sourceYesYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGrok‑1 shipped 689 days before DeepSeek V3.1 Terminus

Which is better: DeepSeek V3.1 Terminus or Grok‑1?

DeepSeek V3.1 Terminus and Grok‑1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok‑1 shipped 689 days before DeepSeek V3.1 Terminus, 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 — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was DeepSeek V3.1 Terminus released?
DeepSeek V3.1 Terminus was released by DeepSeek on Sep 22 2025.
When was Grok‑1 released?
Grok‑1 was released by xAI on Nov 3 2023.

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