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DeepSeek Chat (R1-based) vs Kimi K2 Thinking

0 vs 1 benchmarks won

DeepSeek
DeepSeek Chat (R1-based)
Moonshot AI
Kimi K2 Thinking
Overview
CompanyDeepSeekMoonshot AI
Release dateJan 20 2025Nov 6 2025
Model type
Open sourceYesYes
Specifications
Parameters
1T
Context window
256k
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
71.3%
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek Chat (R1-based) shipped 290 days before Kimi K2 Thinking

Which is better: DeepSeek Chat (R1-based) or Kimi K2 Thinking?

Kimi K2 Thinking leads DeepSeek Chat (R1-based) on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). DeepSeek Chat (R1-based) shipped 290 days before Kimi K2 Thinking, 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 Chat (R1-based) released?
DeepSeek Chat (R1-based) was released by DeepSeek on Jan 20 2025.
When was Kimi K2 Thinking released?
Kimi K2 Thinking was released by Moonshot AI on Nov 6 2025.

Other comparisons