DeepSeek R1 0528 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
- Both cost about the same at a typical 3:1 input/output mix.
- R1 0528 accepts longer prompts: 164K vs 131K tokens.
- GLM 4.5 is the newer model (released 2025-07-25).
| R1 0528 | GLM 4.5 | |
|---|---|---|
| Vendor | DeepSeek | Z.ai |
| Released | 2025-05-28 | 2025-07-25 |
| Input / 1M | $0.50 | $0.60 |
| Output / 1M | $2.15 | $2.20 |
| Cached input / 1M | $0.35 | $0.11 |
| Blended / 1M (3:1) | $0.912 | $1.00 |
| Context | 164K | 131K |
| Max output | 33K | 98K |
| Accepts | text | text |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 3 | 1 |
| Cheapest provider, output | $2.15 | $2.20 |
| Best provider uptime, 24 h | 99.50% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | Operational | — |
Cost calculator
R1 0528
$62.25 per month$2.08 per day
GLM 4.5
$69.00 per month$2.30 per day
R1 0528 saves $6.75 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare R1 0528 with