GLM 5 Turbo 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 84.7)
- •GLM 5 Turbo is cheaper ($1.20 vs $1.25 per 1M input)
- •GPT-5.1 has a larger context window (400K)
| GLM 5 Turbo | GPT-5.1 | |
|---|---|---|
| Intelligence index | 84.7 | 89 |
| Developer | Zhipu AI | OpenAI |
| Type | LLM | LLM |
| Access | API only | API only |
| Context window | 202,752 tokens | 400,000 tokens |
| Input price | $1.20 / 1M | $1.25 / 1M |
| Output price | $4.00 / 1M | $10.00 / 1M |
| Speed | — | 115 tok/s |
| Released | March 15, 2026 | November 12, 2025 |
| Parameters | — | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
GLM 5 Turbo
GPT-5.1
GPQA Diamond
84.7
88.1
Humanity’s Last Exam
25.4
26.5