GLM 4.5V vs GPT-5.1-Codex
Zhipu AI vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1-Codex has the higher intelligence index (88.2 vs 70.1)
- •GLM 4.5V is cheaper ($0.60 vs $1.25 per 1M input)
- •GPT-5.1-Codex is faster
- •GPT-5.1-Codex has a larger context window (400K)
| GLM 4.5V | GPT-5.1-Codex | |
|---|---|---|
| Intelligence index | 70.1 | 88.2 |
| Developer | Zhipu AI | OpenAI |
| Type | Multimodal | Multimodal |
| Access | Open weights | API only |
| Context window | 65,536 tokens | 400,000 tokens |
| Input price | $0.60 / 1M | $1.25 / 1M |
| Output price | $1.80 / 1M | $10.00 / 1M |
| Speed | 85 tok/s | 188 tok/s |
| Released | August 11, 2025 | November 13, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
GLM 4.5V
GPT-5.1-Codex
AIME 2025
73
95.7
GPQA Diamond
68.4
86
Humanity’s Last Exam
5.9
23.4
LiveCodeBench
60.4
84.9
MMLU-Pro
78.8
86