o1-pro vs GLM 5.3 Prime
GLM 5.3 Prime is 61× cheaper than o1-pro on a blended basis. GLM 5.3 Prime has the larger context window at 1M tokens.
Side by side
Green marks the better value in each row where a comparison is meaningful.
| Attribute | o1-pro | GLM 5.3 Prime |
|---|---|---|
| Provider | OpenAI | Z.ai |
| Input / 1M tokens | $150 | $2.80 |
| Output / 1M tokens | $600 | $8.80 |
| Blended / 1M tokens | $263 | $4.30 |
| Cached input / 1M | - | $0.560 |
| Context window | 200K | 1M |
| Max output | 100K | 131K |
| Input modalities | text, image, file | text |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| Structured output | Yes | Yes |
| Prompt caching | No | Yes |
| Open weights | No | No |
| Knowledge cutoff | 2023-10-31 | - |
| Released | March 19, 2025 | September 23, 2026 |
Frequently asked
Is o1-pro or GLM 5.3 Prime cheaper?
GLM 5.3 Prime is 61× cheaper than o1-pro on a blended basis.
What is the price difference between o1-pro and GLM 5.3 Prime?
o1-pro costs $150 per million input tokens and $600 per million output tokens. GLM 5.3 Prime costs $2.80 and $8.80 respectively.
Which has the larger context window, o1-pro or GLM 5.3 Prime?
GLM 5.3 Prime, at 1M tokens versus 200K.