Claude 3.5 Haiku vs GLM-4.6
Anthropic Claude 3.5 Haiku | Z.ai GLM-4.6 | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Z.ai |
| Release date | Oct 22 2024 | Sep 30 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 355B |
Context window | — | 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. | 50% | — |
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. | 40.6% | 68%Best |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 41.6% | — |
| Timeline | ||
| Release gap | Claude 3.5 Haiku shipped 343 days before GLM-4.6 | |
Which is better: Claude 3.5 Haiku or GLM-4.6?
GLM-4.6 leads Claude 3.5 Haiku on 1 of the 1 benchmark they both report (SWE-Bench Verified). Claude 3.5 Haiku shipped 343 days before GLM-4.6, so benchmark comparisons should account for the intervening progress.
Claude 3.5 Haiku is proprietary, while GLM-4.6 is open weight.
On SWE-Bench Verified, GLM-4.6 leads at 68% vs Claude 3.5 Haiku at 40.6%.
Frequently asked questions
Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.
GLM-4.6 was released by Z.ai on Sep 30 2025.
GLM-4.6 leads on SWE-Bench Verified — Claude 3.5 Haiku 40.6% vs GLM-4.6 68%.
Claude 3.5 Haiku is a proprietary model released by Anthropic. GLM-4.6 is an open weight model released by Z.ai.
Other comparisons
Claude 3.5 Haiku vs GPT-5.6 SolGLM-4.6 vs GPT-5.6 SolClaude 3.5 Haiku vs Gemini OmniGLM-4.6 vs Gemini OmniClaude 3.5 Haiku vs Muse SparkGLM-4.6 vs Muse SparkClaude 3.5 Haiku vs Grok 4.3 BetaGLM-4.6 vs Grok 4.3 BetaClaude 3.5 Haiku vs DeepSeek-V4-ProGLM-4.6 vs DeepSeek-V4-ProClaude 3.5 Haiku vs Mistral Medium 3.5GLM-4.6 vs Mistral Medium 3.5