GLM-4.6 vs GPT-5.1
Zhipu AI vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 72.4)
- •GLM-4.6 is cheaper ($0.43 vs $1.25 per 1M input)
- •GPT-5.1 is faster
- •GPT-5.1 has a larger context window (400K)
| GLM-4.6 | GPT-5.1 | |
|---|---|---|
| Intelligence index | 72.4 | 89 |
| Developer | Zhipu AI | OpenAI |
| Type | LLM | LLM |
| Access | Open weights | API only |
| Context window | 202,752 tokens | 400,000 tokens |
| Input price | $0.43 / 1M | $1.25 / 1M |
| Output price | $1.74 / 1M | $10.00 / 1M |
| Speed | 85 tok/s | 115 tok/s |
| Released | September 30, 2025 | November 12, 2025 |
| Parameters | 357B (MoE) | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
GLM-4.6
GPT-5.1
AIME 2025
93.9
94
GPQA Diamond
81
88.1
Humanity’s Last Exam
17.2
26.5
LiveCodeBench
69.5
86.8
MMLU-Pro
82.9
87