GLM-5.1 vs Qwen 3.6 Plus
GLM-5.1 and Qwen 3.6 Plus are both current production-tier models. Qwen 3.6 Plus has a 1M context window — about 5× the 200k of GLM-5.1. GLM-5.1 leads on coding, reasoning. Qwen 3.6 Plus leads on long-context retrieval.
Specs side by side
| Metric | Z.ai GLM-5.1 | Alibaba Qwen 3.6 Plus |
|---|---|---|
| Input price (per 1M) | $1 | $0.5 |
| Output price (per 1M) | $3.2 | $3 |
| Context window | 200k tokens | 1M tokens |
| Speed tier | balanced | balanced |
| Open weights | Yes | Yes |
| EU region | No | No |
| Free tier | bigmodel.cn | OpenRouter |
| Prompt caching | No | No |
| Vision input | No | Yes |
| Extended thinking | Yes | Yes |
When to choose each
Choose GLM-5.1 if…
- Coding is central to your workload
- Reasoning is central to your workload
Choose Qwen 3.6 Plus if…
- You need 1M context (5× more than GLM-5.1)
- You need image input / vision
- Long-context retrieval is central to your workload
Benchmark delta
GLM-5.1 leads on
- Coding
- Reasoning
Qwen 3.6 Plus leads on
- Long-context retrieval
FAQ — GLM-5.1 vs Qwen 3.6 Plus
GLM-5.1 vs Qwen 3.6 Plus — which is better?
GLM-5.1 and Qwen 3.6 Plus are both current production-tier models. Qwen 3.6 Plus has a 1M context window — about 5× the 200k of GLM-5.1. GLM-5.1 leads on coding, reasoning. Qwen 3.6 Plus leads on long-context retrieval. The right pick depends on your use case — see "When to choose each" above for a data-driven decision.
How does GLM-5.1 pricing compare to Qwen 3.6 Plus?
GLM-5.1 costs $1 / $3.2 per 1M vs Qwen 3.6 Plus at $0.50 / $3 per 1M. Qwen 3.6 Plus is cheaper on output tokens by roughly 7%.
Does GLM-5.1 or Qwen 3.6 Plus have the bigger context window?
Qwen 3.6 Plus has a 1M-token context window — 5× the 200k context of GLM-5.1. Enough for entire codebases, books, or multi-document RAG.
Is there a free tier for GLM-5.1 or Qwen 3.6 Plus?
GLM-5.1: yes — Free tier with monthly token allowance. Qwen 3.6 Plus: yes — Preview model free via OpenRouter (qwen3.6-plus-preview:free).
Which is better for coding — GLM-5.1 or Qwen 3.6 Plus?
GLM-5.1 leads on coding benchmarks (GLM-5.1: 93/100, Qwen 3.6 Plus: 88/100). For production coding agents also weigh tool-use performance — GLM-5.1 scores 86, Qwen 3.6 Plus scores 86.