Kimi K3 vs GLM-5.1
Moonshot AI Kimi K3 | Z.ai GLM-5.1 | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | Z.ai |
| Release date | Jul 16 2026 | Apr 7 2026 |
| Access | Open Weight | Open Weight |
| Specifications | ||
Parameters | 2.8T | 744B |
Context window | 1M | 200k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 22% |
Agentic coding DeepSWE 1.0Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. Higher is better. | 67.5% | — |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | — | 75% |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | 88.3% | — |
Agentic terminal coding Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | — | 63.5% |
Multi-step tool use MCP AtlasCan the AI chain together many tools and steps to complete one bigger task, rather than doing just a single thing? Higher is better. | 84.2% | — |
Professional tool use JobBenchTests the AI on professional workplace tasks that require using real work tools — the kind of multi-step jobs an office worker handles. Higher is better. | 52.9% | — |
Personal tool use Toolathlon-VerifiedTests how well the AI uses everyday personal tools and apps to get things done — a human-checked version of Toolathlon. Higher is better. | 73.2% | — |
Web browsing BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better. | 91.2%Best | 68% |
Multidisciplinary reasoning Humanity's Last Exam · no toolsHumanity's Last Exam — extremely hard expert questions across many subjects, written so you can't just look up the answer. “No tools” means the AI answers on its own. Higher is better. | 43.5% | — |
Multidisciplinary reasoning Humanity's Last Exam · with toolsHumanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | 56%Best | 52.3% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 93.5%Best | 86.2% |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | 1668 | — |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | 84.8% | — |
Multimodal reasoning MMMU-ProA tougher version of MMMU — college-level questions that mix images, diagrams, and text together. Higher is better. | 81.6% | — |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | — | 1527 |
| Timeline | ||
| Release gap | GLM-5.1 shipped 100 days before Kimi K3 | |
Which is better: Kimi K3 or GLM-5.1?
Kimi K3 leads GLM-5.1 on 3 of the 3 benchmarks they both report (BrowseComp, Humanity's Last Exam, GPQA Diamond). GLM-5.1 shipped 100 days before Kimi K3, so benchmark comparisons should account for the intervening progress.
Kimi K3 has 2.8T parameters, while GLM-5.1 has 744B. Context windows are 1M (Kimi K3) vs 200k (GLM-5.1).
On BrowseComp, Kimi K3 leads at 91.2% vs GLM-5.1 at 68%. On Humanity's Last Exam · with tools, Kimi K3 leads at 56% vs GLM-5.1 at 52.3%. On GPQA Diamond, Kimi K3 leads at 93.5% vs GLM-5.1 at 86.2%.
Frequently asked questions
Kimi K3 was released by Moonshot AI on Jul 16 2026.
GLM-5.1 was released by Z.ai on Apr 7 2026.
Kimi K3 leads on Humanity's Last Exam · with tools — Kimi K3 56% vs GLM-5.1 52.3%.
Kimi K3 has a 1M context window; GLM-5.1 has 200k.