Tencent Hy4 preview vs Z.ai GLM 4.5
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- GLM 4.5 is 1.1× cheaper at a typical mix of 3 input tokens per output token.
- Hy4 preview accepts longer prompts: 1M vs 131K tokens.
- Hy4 preview is the newer model (released 2026-08-28).
| Hy4 preview | GLM 4.5 | |
|---|---|---|
| Vendor | Tencent | Z.ai |
| Released | 2026-08-28 | 2025-07-25 |
| Input / 1M | $0.751 | $0.60 |
| Output / 1M | $2.25 | $2.20 |
| Cached input / 1M | $0.038 | $0.11 |
| Blended / 1M (3:1) | $1.13 | $1.00 |
| Context | 1M | 131K |
| Max output | 64K | 98K |
| Accepts | text | text |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 7 | 1 |
| Cheapest provider, output | $2.50 | $2.20 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | — | — |
Cost calculator
Hy4 preview
$78.80 per month$2.63 per day
GLM 4.5
$69.00 per month$2.30 per day
GLM 4.5 saves $9.80 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare Hy4 preview with
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