Claude Sonnet 4.5 vs ChatGLM-6B
Anthropic Claude Sonnet 4.5 | Z.ai ChatGLM-6B | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Z.ai |
| Release date | Sep 29 2025 | Mar 14 2023 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 6B |
| 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. | 79% | — |
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. | 77.2% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 83.4% | — |
Multimodal MMMUTests the AI on understanding images and text together across many college subjects. Higher is better. | 68% | — |
| Timeline | ||
| Release gap | ChatGLM-6B shipped 930 days before Claude Sonnet 4.5 | |
Which is better: Claude Sonnet 4.5 or ChatGLM-6B?
Claude Sonnet 4.5 and ChatGLM-6B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. ChatGLM-6B shipped 930 days before Claude Sonnet 4.5, so benchmark comparisons should account for the intervening progress.
Claude Sonnet 4.5 is proprietary, while ChatGLM-6B is open weight.
Direct benchmark comparisons are unavailable — Claude Sonnet 4.5 and ChatGLM-6B don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude Sonnet 4.5 was released by Anthropic on Sep 29 2025.
ChatGLM-6B was released by Z.ai on Mar 14 2023.
Claude Sonnet 4.5 is a proprietary model released by Anthropic. ChatGLM-6B is an open weight model released by Z.ai.
Other comparisons
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