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Kimi K2 Thinking vs GLM-4.5

Moonshot AI
Kimi K2 Thinking
Z.ai
GLM-4.5
Overview
CompanyMoonshot AIZ.ai
Release dateNov 6 2025Jul 28 2025
AccessOpen WeightOpen Weight
Specifications
Parameters
1T
355B
Context window
256k
128k
Benchmarks
Coding
SWE-Bench Verified
71.3%Best
64.2%
Science
GPQA Diamond
79.1%
Timeline
Release gapGLM-4.5 shipped 101 days before Kimi K2 Thinking

Which is better: Kimi K2 Thinking or GLM-4.5?

Kimi K2 Thinking leads GLM-4.5 on 1 of the 1 benchmark they both report (SWE-Bench Verified). GLM-4.5 shipped 101 days before Kimi K2 Thinking, so benchmark comparisons should account for the intervening progress.

Kimi K2 Thinking has 1T parameters, while GLM-4.5 has 355B. Context windows are 256k (Kimi K2 Thinking) vs 128k (GLM-4.5).

On SWE-Bench Verified, Kimi K2 Thinking leads at 71.3% vs GLM-4.5 at 64.2%.

Frequently asked questions

Kimi K2 Thinking was released by Moonshot AI on Nov 6 2025.

GLM-4.5 was released by Z.ai on Jul 28 2025.

Kimi K2 Thinking leads on SWE-Bench Verified — Kimi K2 Thinking 71.3% vs GLM-4.5 64.2%.

Kimi K2 Thinking has a 256k context window; GLM-4.5 has 128k.

Other comparisons