GPT-5 Mini vs GLM 5
GPT-5 Mini is cheaper on output tokens, while GPT-5 Mini offers a larger context window. Choose GPT-5 Mini or GLM 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5 Mini | GLM 5 |
|---|---|---|
| Provider | OpenAI | Z.ai |
| Input / 1M tokens | $0.25 | $1.00 |
| Output / 1M tokens | $2.00 | $3.20 |
| Context window | 400K | 205K |
| Parameters | — | 744B |
| Open weights | No | Yes |
| Released | Aug 2025 | Feb 2026 |
| LiveBench score | 66.6 | 68.7 |
| SWE-bench Multilingual score | 39.7 | 69.7 |
| GPQA Diamond score | 75.0 | 87.8 |
| FrontierMath score | 27.2 | 16.4 |
| LMArena (Chatbot Arena) Elo score | 1373 | 1446 |
| Epoch Capabilities Index score | 145 | 146 |
| LMArena Vision Elo score | 1202 | — |
| SWE-bench Verified score | 59.8 | 72.8 |
| LMArena WebDev Elo score | — | 1435 |
FAQ
Is GPT-5 Mini or GLM 5 cheaper?
GPT-5 Mini is cheaper on output tokens ($2.00 vs $3.20 per 1M).
Which has the larger context window, GPT-5 Mini or GLM 5?
GPT-5 Mini has the larger context window (400K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.