GLM-4.6 vs gpt-oss-120b
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
GLM-4.6
63.9Z.ai (Zhipu) · Sep 2025
The budget coding-agent favorite of late 2025 — near-Sonnet coding utility with MIT weights and a $3/month plan.
gpt-oss-120b
OpenAI · Aug 2025
OpenAI's open-weights MoE reasoning model under Apache 2.0 — near o4-mini quality, runnable on a single 80GB GPU.
The verdict
GLM-4.6 wins 2 of the 3 benchmarks these models share, against 1 for gpt-oss-120b. On price the gap is dramatic: gpt-oss-120b works out roughly 5.0x cheaper per blended million tokens. GLM-4.6 also takes 200K of context versus 131K for gpt-oss-120b.
Benchmark head-to-head 2–1
Specs & pricing
| GLM-4.6 | gpt-oss-120b | |
|---|---|---|
| modhub Index | 63.9 | — |
| Input price / 1M | $0.6 | $0.1 |
| Output price / 1M | $2.2 | $0.5 |
| Context window | 200K | 131K |
| Max output | 128K | 131K |
| Open weights | yes (MIT) | yes (Apache 2.0) |
| Reasoning model | yes | yes |
| Multimodal input | text | text |
| Knowledge cutoff | Jul 2025 | Jun 2024 |
| Released | Sep 2025 | Aug 2025 |
| Example monthly cost* | $9.30 | $1.75 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, GLM-4.6 or gpt-oss-120b?
- GLM-4.6 wins 2 of the 3 benchmarks these models share, against 1 for gpt-oss-120b. On price the gap is dramatic: gpt-oss-120b works out roughly 5.0x cheaper per blended million tokens. GLM-4.6 also takes 200K of context versus 131K for gpt-oss-120b.
- Which is cheaper, GLM-4.6 or gpt-oss-120b?
- GLM-4.6 costs $0.6/$2.2 per million input/output tokens, while gpt-oss-120b costs $0.1/$0.5. For a typical workload of 10M input and 1.5M output tokens per month, that's $9.30 versus $1.75.
- Which model is better for coding, GLM-4.6 or gpt-oss-120b?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.