gpt-oss-120b vs GLM 5.2
| OpenAI gpt-oss-120b | Z.ai GLM 5.2 | |
|---|---|---|
| Vendor | OpenAI | Z.ai |
| Context window | 131,072 | 1,000,000 |
| Max output | 131,072 | 128,000 |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| File input | No | No |
| Input | text | text |
| Output | text | text |
| Released | — | 2026-06-16 |
| OpenAI gpt-oss-120b | Z.ai GLM 5.2 | |
|---|---|---|
| Vendor | OpenAI | Z.ai |
| Context window | 131,072 | 1,000,000 |
| Max output | 131,072 | 128,000 |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| File input | No | No |
| Input | text | text |
| Output | text | text |
| Released | — | 2026-06-16 |