Claude 3 Sonnet vs GLM-4.6
Anthropic Claude 3 Sonnet | Z.ai GLM-4.6 | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Z.ai |
| Release date | Mar 4 2024 | Sep 30 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 355B |
Context window | — | 200k |
| Benchmarks | ||
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. | — | 68% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 40.4% | — |
| Timeline | ||
| Release gap | Claude 3 Sonnet shipped 575 days before GLM-4.6 | |
Which is better: Claude 3 Sonnet or GLM-4.6?
Claude 3 Sonnet and GLM-4.6 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3 Sonnet shipped 575 days before GLM-4.6, so benchmark comparisons should account for the intervening progress.
Claude 3 Sonnet is proprietary, while GLM-4.6 is open weight.
Direct benchmark comparisons are unavailable — Claude 3 Sonnet and GLM-4.6 don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 3 Sonnet was released by Anthropic on Mar 4 2024.
GLM-4.6 was released by Z.ai on Sep 30 2025.
Claude 3 Sonnet is a proprietary model released by Anthropic. GLM-4.6 is an open weight model released by Z.ai.
Other comparisons
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