GLM-5.3 FlashX (Tencent Cloud) vs GPT-5.4 Nano
Both have similar output pricing, while GLM-5.3 FlashX (Tencent Cloud) offers a larger context window. Choose GLM-5.3 FlashX (Tencent Cloud) or GPT-5.4 Nano based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GLM-5.3 FlashX (Tencent Cloud) | GPT-5.4 Nano |
|---|---|---|
| Provider | LLM Gateway | OpenAI |
| Input / 1M tokens | $0.37 | $0.20 |
| Output / 1M tokens | $1.25 | $1.25 |
| Context window | 1M | 400K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Sep 2026 | Mar 2026 |
| LiveBench score | — | 71.3 |
| FrontierMath score | — | 25.9 |
| Epoch Capabilities Index score | — | 146 |
| LMArena (Chatbot Arena) Elo score | — | 1372 |
| LMArena Vision Elo score | — | 1196 |
| GPQA Diamond score | — | 78.5 |
FAQ
Is GLM-5.3 FlashX (Tencent Cloud) or GPT-5.4 Nano cheaper?
GLM-5.3 FlashX (Tencent Cloud) and GPT-5.4 Nano have comparable output pricing.
Which has the larger context window, GLM-5.3 FlashX (Tencent Cloud) or GPT-5.4 Nano?
GLM-5.3 FlashX (Tencent Cloud) has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.