Claude Sonnet 4.6 vs GLM-4.7
Anthropic Claude Sonnet 4.6 | Z.ai GLM-4.7 | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Z.ai |
| Release date | Feb 17 2026 | Dec 22 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Context window | — | 128k |
| 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. | 91% | — |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 79.6%Best | 73.8% |
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. | — | 41% |
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. | 69.5% | — |
Web browsing BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better. | — | 52% |
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. | 33.2%Best | 24.8% |
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. | — | 42.8% |
Abstract reasoning ARC-AGI-2Puzzle-style tests of abstract reasoning and pattern-finding — the kind of thing people find easy but AIs often struggle with. Higher is better. | 58.3% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 89.9%Best | 85.7% |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | 72.5% | — |
Agentic financial analysis Finance Agent v2Tests the AI on real financial-analysis work, like digging through reports and making sound decisions. Higher is better. | 51% | — |
Knowledge work GDPval-AAMeasures how well the AI does economically valuable knowledge work, judged against human experts. Shown as a rating (like a chess Elo) — higher is better. | 1676 | — |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | 72.4% | — |
Multimodal reasoning MMMU-ProA tougher version of MMMU — college-level questions that mix images, diagrams, and text together. Higher is better. | 74.5% | — |
Spatial reasoning Blueprint-Bench 2Can the AI reason about space and layout — for example, understanding a floor plan or blueprint? Higher is better. | 6.7% | — |
Long context MRCR v2 (8-needle) · 128k averageTests whether the AI can find specific details buried inside a very long document (around 128k tokens — roughly a long book). Higher is better. | 84.9% | — |
| Timeline | ||
| Release gap | GLM-4.7 shipped 57 days before Claude Sonnet 4.6 | |
Which is better: Claude Sonnet 4.6 or GLM-4.7?
Claude Sonnet 4.6 leads GLM-4.7 on 3 of the 3 benchmarks they both report (SWE-Bench Verified, Humanity's Last Exam, GPQA Diamond). GLM-4.7 shipped 57 days before Claude Sonnet 4.6, so benchmark comparisons should account for the intervening progress.
Claude Sonnet 4.6 is proprietary, while GLM-4.7 is open weight.
On SWE-Bench Verified, Claude Sonnet 4.6 leads at 79.6% vs GLM-4.7 at 73.8%. On Humanity's Last Exam · no tools, Claude Sonnet 4.6 leads at 33.2% vs GLM-4.7 at 24.8%. On GPQA Diamond, Claude Sonnet 4.6 leads at 89.9% vs GLM-4.7 at 85.7%.
Frequently asked questions
Claude Sonnet 4.6 was released by Anthropic on Feb 17 2026.
GLM-4.7 was released by Z.ai on Dec 22 2025.
Claude Sonnet 4.6 leads on SWE-Bench Verified — Claude Sonnet 4.6 79.6% vs GLM-4.7 73.8%.
Claude Sonnet 4.6 leads on Humanity's Last Exam · no tools — Claude Sonnet 4.6 33.2% vs GLM-4.7 24.8%.
Claude Sonnet 4.6 is a proprietary model released by Anthropic. GLM-4.7 is an open weight model released by Z.ai.